diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3d8e954fdc..478d410c1b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -52,12 +52,12 @@ jobs:
           submodules: recursive
       - name: Build site and check links
         run: make build BUILD_CONFIGS=_config.yml,_config_stage.yml
-#      - name: Install Node for Firebase install
-#        uses: actions/setup-node@8f152de45cc393bb48ce5d89d36b731f54556e65
-#        with:
-#          node-version: ${{ env.NODE_VERSION }}
-#      - name: Install Firebase CLI
-#        run: npm install -g firebase-tools@12.9.1
+#     - name: Install Node for Firebase install
+#       uses: actions/setup-node@b39b52d1213e96004bfcb1c61a8a6fa8ab84f3e8
+#       with:
+#         node-version: ${{ env.NODE_VERSION }}
+#     - name: Install Firebase CLI
+#       run: npm install -g firebase-tools@13.0.2
       - uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d
         with:
           sdk: stable
@@ -77,18 +77,18 @@ jobs:
           submodules: recursive
       - name: Build site and check links
         run: make build
-#      - name: Install Node for Firebase install
-#        uses: actions/setup-node@8f152de45cc393bb48ce5d89d36b731f54556e65
-#        with:
-#          node-version: ${{ env.NODE_VERSION }}
-#      - name: Install Firebase CLI
-#        run: npm install -g firebase-tools@12.9.1
-#      - uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d
-#        with:
-#          sdk: stable
-#      - run: tool/check-links.sh
-#      - name: Deploy to Firebase hosting
-#        run: make deploy # TODO(drewroengoogle) Run deploy on Cloud Build.
+#     - name: Install Node for Firebase install
+#       uses: actions/setup-node@b39b52d1213e96004bfcb1c61a8a6fa8ab84f3e8
+#       with:
+#         node-version: ${{ env.NODE_VERSION }}
+#     - name: Install Firebase CLI
+#       run: npm install -g firebase-tools@13.0.2
+#     - uses: dart-lang/setup-dart@b64355ae6ca0b5d484f0106a033dd1388965d06d
+#       with:
+#         sdk: stable
+#     - run: tool/check-links.sh   
+#     - name: Deploy to Firebase hosting 
+#       run: make deploy # TODO(drewroengoogle) Run deploy on Cloud Build.
       - name: Deploy CN
         run: make deploy
         env:
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 5675628ab0..f4c5878aa6 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -11,7 +11,7 @@ but two of the primary repos are the
 [Flutter SDK](https://github.com/flutter/flutter), and this repo, the
 [Flutter website](https://github.com/flutter/website).
 To contribute a fix to a repo, submit a [pull request
-(PR)](https://services.github.com/on-demand/github-cli/open-pull-request-github).
+(PR)](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request).
 
 For information on contributing code or API docs to the Flutter SDK, see
 [Contributing to
diff --git a/Dockerfile b/Dockerfile
index 6eb8f114cd..bcc1347858 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:3.2.2-slim-bookworm@sha256:02a091c83d1aa1070c0f6fefcbd2aff58ddd3430e2d5661c6ef2142b1383349b AS base
+FROM ruby:3.3-slim-bookworm@sha256:763422273a15e307b044fcb3ad6b1ef6c290d2043ac73596842aba5659dc7318 as base
 
 SHELL ["/usr/bin/bash", "-c"]
 
@@ -85,6 +85,7 @@ FROM node AS dev
 #RUN bundle config mirror.https://rubygems.org https://mirrors.tuna.tsinghua.edu.cn/rubygems
 
 ENV JEKYLL_ENV=development
+ENV RUBY_YJIT_ENABLE=1
 RUN gem install bundler
 COPY Gemfile Gemfile.lock ./
 RUN bundle config set force_ruby_platform true
@@ -116,6 +117,7 @@ RUN tool/move_docs.sh; tool/translator/build.sh
 FROM node AS build
 
 ENV JEKYLL_ENV=production
+ENV RUBY_YJIT_ENABLE=1
 RUN gem install bundler
 COPY Gemfile Gemfile.lock ./
 RUN bundle config set force_ruby_platform true
diff --git a/Gemfile b/Gemfile
index 58d1c2d79f..1e3180951a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem 'jekyll', '4.3.2'
+gem 'jekyll', '4.3.3'
 gem 'jekyll-sass-converter', '~> 3.0.0'
 gem 'webrick'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 9755142d54..69cb8be8f5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,10 +11,10 @@ GEM
       minitest (>= 5.1)
       mutex_m
       tzinfo (~> 2.0)
-    addressable (2.8.5)
+    addressable (2.8.6)
       public_suffix (>= 2.0.2, < 6.0)
     base64 (0.2.0)
-    bigdecimal (3.1.4)
+    bigdecimal (3.1.5)
     colorator (1.1.0)
     concurrent-ruby (1.2.2)
     connection_pool (2.4.1)
@@ -28,11 +28,11 @@ GEM
       forwardable-extended (~> 2.5)
     ffi (1.16.3)
     forwardable-extended (2.6.0)
-    google-protobuf (3.25.0)
+    google-protobuf (3.25.1)
     http_parser.rb (0.8.0)
     i18n (1.14.1)
       concurrent-ruby (~> 1.0)
-    jekyll (4.3.2)
+    jekyll (4.3.3)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
@@ -72,12 +72,12 @@ GEM
     mini_portile2 (2.8.5)
     minitest (5.20.0)
     mutex_m (0.2.0)
-    nokogiri (1.15.4)
+    nokogiri (1.15.5)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (5.0.3)
+    public_suffix (5.0.4)
     racc (1.7.3)
     rake (13.1.0)
     rb-fsevent (0.11.2)
@@ -102,7 +102,7 @@ PLATFORMS
 
 DEPENDENCIES
   activesupport (~> 7.1.2)
-  jekyll (= 4.3.2)
+  jekyll (= 4.3.3)
   jekyll-include-cache (~> 0.2.1)
   jekyll-sass-converter (~> 3.0.0)
   jekyll-toc (~> 0.18.0)
@@ -110,4 +110,4 @@ DEPENDENCIES
   webrick
 
 BUNDLED WITH
-   2.4.21
+   2.5.3
diff --git a/_config.yml b/_config.yml
index c3f2ce3ec4..a3335f7635 100644
--- a/_config.yml
+++ b/_config.yml
@@ -56,6 +56,44 @@ flutterfire: https://firebase.flutter.dev
 dartpadx-dart: https://dartpad.cn/experimental/embed-new-dart.html ## Adding the exp version for dart here.
 youtube-site: https://youtube.com
 
+## Software minimum versions
+
+appmin:
+  github_win: 2.4
+  github_mac: 2.4
+  vscode: 1.75
+  android_studio: '2022.3 (Giraffe) or later'
+  intellij_idea: '2022.3 or later'
+  android_sdk: 19
+  powershell: 5.0
+devmin:
+  windows: '64-bit version of Microsoft Windows 10'
+  macos: '10.14 (Mojave)'
+  linux: 
+    debian: 10
+    ubuntu: '18.04 LTS'
+targetmin:
+  windows: 'Microsoft Windows 7'
+  macos: '10.13 (Ventura)'
+  linux:
+    debian: 9
+    ubuntu: '18.04 LTS'
+  ios: 11
+  android: 'Android API level 19'
+
+## Software current versions
+
+appnow:
+  flutter: '3.13.4'
+  github_win: 2.4
+  vscode: '1.81.1'
+  android_studio: '2022.3 (Giraffe) or later'
+  android_sdk: '33.0.0'
+  intellij: '2023.1'
+  powershell: 5.0
+  xcode: '15'
+  ios: '17'
+  cocoapods: '1.12'
 
 ########### Jekyll ###########
 
@@ -182,6 +220,9 @@ alert:
   version-note: >-
     <aside class="alert alert-info" role="alert" markdown="1">
     <i class="material-icons" aria-hidden="true">merge_type</i> **版本提示:**
+  recommend: >-
+    <aside class="alert alert-success alert-icon" role="alert" markdown="1">
+    <i class="material-icons" aria-hidden="true">bolt</i>
   secondary: >-
     <aside class="alert alert-secondary" role="alert" markdown="1">
   tip: >-
diff --git a/examples/basics/lib/main.dart b/examples/basics/lib/main.dart
index 219eb403b1..ee2f68d14b 100644
--- a/examples/basics/lib/main.dart
+++ b/examples/basics/lib/main.dart
@@ -23,7 +23,7 @@ class MyApp extends StatelessWidget {
         appBar: AppBar(
           title: const Text('Nullable Fields Demo'),
         ),
-        body: const Center(
+        body: Center(
           child: Column(
             children: [
               Text('anInt is $anInt.'),
diff --git a/examples/codelabs b/examples/codelabs
index 4e2eb0c652..cb355359b6 160000
--- a/examples/codelabs
+++ b/examples/codelabs
@@ -1 +1 @@
-Subproject commit 4e2eb0c652bb1811e022c210b94938919d30a6c4
+Subproject commit cb355359b6ca199e933b1f3e293f900a1ed1b65b
diff --git a/examples/cookbook/games/achievements_leaderboards/analysis_options.yaml b/examples/cookbook/games/achievements_leaderboards/analysis_options.yaml
new file mode 100644
index 0000000000..eee60e0f5a
--- /dev/null
+++ b/examples/cookbook/games/achievements_leaderboards/analysis_options.yaml
@@ -0,0 +1,5 @@
+# Take our settings from the example_utils analysis_options.yaml file.
+# If necessary for a particular example, this file can also include
+# overrides for individual lints.
+
+include: package:example_utils/analysis.yaml
diff --git a/examples/cookbook/games/achievements_leaderboards/lib/games_services_controller.dart b/examples/cookbook/games/achievements_leaderboards/lib/games_services_controller.dart
new file mode 100644
index 0000000000..571eb10b88
--- /dev/null
+++ b/examples/cookbook/games/achievements_leaderboards/lib/games_services_controller.dart
@@ -0,0 +1,113 @@
+import 'dart:async';
+
+import 'package:games_services/games_services.dart';
+import 'package:logging/logging.dart';
+
+/// Allows awarding achievements and leaderboard scores,
+/// and also showing the platforms' UI overlays for achievements
+/// and leaderboards.
+///
+/// A facade of `package:games_services`.
+class GamesServicesController {
+  static final Logger _log = Logger('GamesServicesController');
+
+  final Completer<bool> _signedInCompleter = Completer();
+
+  Future<bool> get signedIn => _signedInCompleter.future;
+
+  /// Unlocks an achievement on Game Center / Play Games.
+  ///
+  /// You must provide the achievement ids via the [iOS] and [android]
+  /// parameters.
+  ///
+  /// Does nothing when the game isn't signed into the underlying
+  /// games service.
+  Future<void> awardAchievement(
+      {required String iOS, required String android}) async {
+    if (!await signedIn) {
+      _log.warning('Trying to award achievement when not logged in.');
+      return;
+    }
+
+    try {
+      await GamesServices.unlock(
+        achievement: Achievement(
+          androidID: android,
+          iOSID: iOS,
+        ),
+      );
+    } catch (e) {
+      _log.severe('Cannot award achievement: $e');
+    }
+  }
+
+  /// Signs into the underlying games service.
+  Future<void> initialize() async {
+    try {
+      await GamesServices.signIn();
+      // The API is unclear so we're checking to be sure. The above call
+      // returns a String, not a boolean, and there's no documentation
+      // as to whether every non-error result means we're safely signed in.
+      final signedIn = await GamesServices.isSignedIn;
+      _signedInCompleter.complete(signedIn);
+    } catch (e) {
+      _log.severe('Cannot log into GamesServices: $e');
+      _signedInCompleter.complete(false);
+    }
+  }
+
+  /// Launches the platform's UI overlay with achievements.
+  Future<void> showAchievements() async {
+    if (!await signedIn) {
+      _log.severe('Trying to show achievements when not logged in.');
+      return;
+    }
+
+    try {
+      await GamesServices.showAchievements();
+    } catch (e) {
+      _log.severe('Cannot show achievements: $e');
+    }
+  }
+
+  /// Launches the platform's UI overlay with leaderboard(s).
+  Future<void> showLeaderboard() async {
+    if (!await signedIn) {
+      _log.severe('Trying to show leaderboard when not logged in.');
+      return;
+    }
+
+    try {
+      await GamesServices.showLeaderboards(
+        // TODO: When ready, change both these leaderboard IDs.
+        iOSLeaderboardID: 'some_id_from_app_store',
+        androidLeaderboardID: 'sOmE_iD_fRoM_gPlAy',
+      );
+    } catch (e) {
+      _log.severe('Cannot show leaderboard: $e');
+    }
+  }
+
+  /// Submits [score] to the leaderboard.
+  Future<void> submitLeaderboardScore(int score) async {
+    if (!await signedIn) {
+      _log.warning('Trying to submit leaderboard when not logged in.');
+      return;
+    }
+
+    _log.info('Submitting $score to leaderboard.');
+
+    try {
+      await GamesServices.submitScore(
+        score: Score(
+          // TODO: When ready, change these leaderboard IDs.
+          iOSLeaderboardID: 'some_id_from_app_store',
+          androidLeaderboardID: 'sOmE_iD_fRoM_gPlAy',
+          value: score,
+        ),
+      );
+    } catch (e) {
+      _log.severe('Cannot submit leaderboard score: $e');
+    }
+  }
+}
\ No newline at end of file
diff --git a/examples/cookbook/games/achievements_leaderboards/lib/various.dart b/examples/cookbook/games/achievements_leaderboards/lib/various.dart
new file mode 100644
index 0000000000..e671cb6603
--- /dev/null
+++ b/examples/cookbook/games/achievements_leaderboards/lib/various.dart
@@ -0,0 +1,44 @@
+// ignore_for_file: unused_catch_clause
+
+import 'package:flutter/services.dart';
+import 'package:games_services/games_services.dart';
+
+void main() async {
+  // #docregion signIn
+  try {
+    await GamesServices.signIn();
+  } on PlatformException catch (e) {
+    // ... deal with failures ...
+  }
+  // #enddocregion signIn
+
+  // #docregion unlock
+  await GamesServices.unlock(
+    achievement: Achievement(
+      androidID: 'your android id',
+      iOSID: 'your ios id',
+    ),
+  );
+  // #enddocregion unlock
+
+  // #docregion showAchievements
+  await GamesServices.showAchievements();
+  // #enddocregion showAchievements
+
+  // #docregion submitScore
+  await GamesServices.submitScore(
+    score: Score(
+      iOSLeaderboardID: 'some_id_from_app_store',
+      androidLeaderboardID: 'sOmE_iD_fRoM_gPlAy',
+      value: 100,
+    ),
+  );
+  // #enddocregion submitScore
+
+  // #docregion showLeaderboards
+  await GamesServices.showLeaderboards(
+    iOSLeaderboardID: 'some_id_from_app_store',
+    androidLeaderboardID: 'sOmE_iD_fRoM_gPlAy',
+  );
+  // #enddocregion showLeaderboards
+}
diff --git a/examples/cookbook/games/achievements_leaderboards/pubspec.yaml b/examples/cookbook/games/achievements_leaderboards/pubspec.yaml
new file mode 100644
index 0000000000..0bf34949e5
--- /dev/null
+++ b/examples/cookbook/games/achievements_leaderboards/pubspec.yaml
@@ -0,0 +1,19 @@
+name: games_services_example
+description: Games services
+
+environment:
+  sdk: ^3.2.0
+
+dependencies:
+  flutter:
+    sdk: flutter
+
+  games_services: ^4.0.0
+  logging: ^1.2.0
+
+dev_dependencies:
+  example_utils:
+    path: ../../../example_utils
+
+flutter:
+  uses-material-design: true
diff --git a/examples/cookbook/games/firestore_multiplayer/README.md b/examples/cookbook/games/firestore_multiplayer/README.md
new file mode 100644
index 0000000000..e81d8c50cd
--- /dev/null
+++ b/examples/cookbook/games/firestore_multiplayer/README.md
@@ -0,0 +1,2 @@
+This is a stripped down version of the multiplayer sample
+in https://github.com/flutter/games/tree/main/samples/multiplayer.
diff --git a/examples/cookbook/games/firestore_multiplayer/analysis_options.yaml b/examples/cookbook/games/firestore_multiplayer/analysis_options.yaml
new file mode 100644
index 0000000000..eee60e0f5a
--- /dev/null
+++ b/examples/cookbook/games/firestore_multiplayer/analysis_options.yaml
@@ -0,0 +1,5 @@
+# Take our settings from the example_utils analysis_options.yaml file.
+# If necessary for a particular example, this file can also include
+# overrides for individual lints.
+
+include: package:example_utils/analysis.yaml
diff --git a/examples/cookbook/games/firestore_multiplayer/lib/firebase_options.dart b/examples/cookbook/games/firestore_multiplayer/lib/firebase_options.dart
new file mode 100644
index 0000000000..92af9100af
--- /dev/null
+++ b/examples/cookbook/games/firestore_multiplayer/lib/firebase_options.dart
@@ -0,0 +1,80 @@
+// File generated by FlutterFire CLI.
+// ignore_for_file: lines_longer_than_80_chars, avoid_classes_with_only_static_members
+import 'package:firebase_core/firebase_core.dart' show FirebaseOptions;
+import 'package:flutter/foundation.dart'
+    show defaultTargetPlatform, kIsWeb, TargetPlatform;
+
+/// Default [FirebaseOptions] for use with your Firebase apps.
+///
+/// Example:
+/// ```dart
+/// import 'firebase_options.dart';
+/// // ...
+/// await Firebase.initializeApp(
+///   options: DefaultFirebaseOptions.currentPlatform,
+/// );
+/// ```
+class DefaultFirebaseOptions {
+  static FirebaseOptions get currentPlatform {
+    if (kIsWeb) {
+      return web;
+    }
+    switch (defaultTargetPlatform) {
+      case TargetPlatform.android:
+        return android;
+      case TargetPlatform.iOS:
+        return ios;
+      case TargetPlatform.macOS:
+        return macos;
+      case TargetPlatform.windows:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for windows - '
+              'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      case TargetPlatform.linux:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for linux - '
+              'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      default:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions are not supported for this platform.',
+        );
+    }
+  }
+
+  static const FirebaseOptions web = FirebaseOptions(
+    apiKey: 'blahblahbla',
+    appId: '1:123456:web:blahblahbla',
+    messagingSenderId: '123456',
+    projectId: 'card-game-deadbeef',
+    authDomain: 'card-game-deadbeef.firebaseapp.com',
+    storageBucket: 'card-game-deadbeef.appspot.com',
+  );
+
+  static const FirebaseOptions android = FirebaseOptions(
+    apiKey: 'blahblahbla',
+    appId: '1:123456:android:blahblahbla',
+    messagingSenderId: '123456',
+    projectId: 'card-game-deadbeef',
+    storageBucket: 'card-game-deadbeef.appspot.com',
+  );
+
+  static const FirebaseOptions ios = FirebaseOptions(
+    apiKey: 'blahblahbla',
+    appId: '1:123456:ios:blahblahbla',
+    messagingSenderId: '123456',
+    projectId: 'card-game-deadbeef',
+    storageBucket: 'card-game-deadbeef.appspot.com',
+    iosBundleId: 'com.example.card',
+  );
+
+  static const FirebaseOptions macos = FirebaseOptions(
+    apiKey: 'blahblahbla',
+    appId: '1:123456:ios:blahblahbla',
+    messagingSenderId: '123456',
+    projectId: 'card-game-deadbeef',
+    storageBucket: 'card-game-deadbeef.appspot.com',
+    iosBundleId: 'com.example.card.RunnerTests',
+  );
+}
diff --git a/examples/cookbook/games/firestore_multiplayer/lib/game_internals/board_state.dart b/examples/cookbook/games/firestore_multiplayer/lib/game_internals/board_state.dart
new file mode 100644
index 0000000000..5c755d36f5
--- /dev/null
+++ b/examples/cookbook/games/firestore_multiplayer/lib/game_internals/board_state.dart
@@ -0,0 +1,20 @@
+// This file has only enough in it to satisfy `firestore_controller.dart`.
+
+import 'package:flutter/foundation.dart';
+
+import 'playing_area.dart';
+
+class BoardState {
+  final VoidCallback onWin;
+
+  final PlayingArea areaOne = PlayingArea();
+
+  final PlayingArea areaTwo = PlayingArea();
+
+  BoardState({required this.onWin});
+
+  void dispose() {
+    areaOne.dispose();
+    areaTwo.dispose();
+  }
+}
diff --git a/examples/cookbook/games/firestore_multiplayer/lib/game_internals/playing_area.dart b/examples/cookbook/games/firestore_multiplayer/lib/game_internals/playing_area.dart
new file mode 100644
index 0000000000..0b0c2024fa
--- /dev/null
+++ b/examples/cookbook/games/firestore_multiplayer/lib/game_internals/playing_area.dart
@@ -0,0 +1,23 @@
+// This file has only enough in it to satisfy `firestore_controller.dart`.
+
+import 'dart:async';
+
+import 'playing_card.dart';
+
+class PlayingArea {
+  final List<PlayingCard> cards = [];
+
+  final StreamController<void> _playerChanges =
+      StreamController<void>.broadcast();
+
+  PlayingArea();
+
+  Stream<void> get playerChanges => _playerChanges.stream;
+
+  void dispose() {
+    _playerChanges.close();
+  }
+
+  void replaceWith(List<PlayingCard> cards) {
+  }
+}
diff --git a/examples/cookbook/games/firestore_multiplayer/lib/game_internals/playing_card.dart b/examples/cookbook/games/firestore_multiplayer/lib/game_internals/playing_card.dart
new file mode 100644
index 0000000000..8be4c52894
--- /dev/null
+++ b/examples/cookbook/games/firestore_multiplayer/lib/game_internals/playing_card.dart
@@ -0,0 +1,12 @@
+// This file has only enough in it to satisfy `firestore_controller.dart`.
+class PlayingCard {
+  const PlayingCard();
+
+  factory PlayingCard.fromJson(Map<String, dynamic> json) {
+    return const PlayingCard();
+  }
+
+  Map<String, dynamic> toJson() => {
+        // Nothing
+      };
+}
diff --git a/examples/cookbook/games/firestore_multiplayer/lib/main.dart b/examples/cookbook/games/firestore_multiplayer/lib/main.dart
new file mode 100644
index 0000000000..c3c44c0ef9
--- /dev/null
+++ b/examples/cookbook/games/firestore_multiplayer/lib/main.dart
@@ -0,0 +1,39 @@
+// ignore_for_file: directives_ordering, prefer_const_constructors
+
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+// #docregion imports
+import 'package:cloud_firestore/cloud_firestore.dart';
+import 'package:firebase_core/firebase_core.dart';
+
+import 'firebase_options.dart';
+// #enddocregion imports
+
+void main() async {
+  // #docregion initializeApp
+  WidgetsFlutterBinding.ensureInitialized();
+
+  await Firebase.initializeApp(
+    options: DefaultFirebaseOptions.currentPlatform,
+  );
+  // #enddocregion initializeApp
+
+  // #docregion runApp
+  runApp(
+    Provider.value(
+      value: FirebaseFirestore.instance,
+      child: MyApp(),
+    ),
+  );
+  // #enddocregion runApp
+}
+
+class MyApp extends StatelessWidget {
+  const MyApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Placeholder();
+  }
+}
diff --git a/examples/cookbook/games/firestore_multiplayer/lib/multiplayer/firestore_controller.dart b/examples/cookbook/games/firestore_multiplayer/lib/multiplayer/firestore_controller.dart
new file mode 100644
index 0000000000..c108355957
--- /dev/null
+++ b/examples/cookbook/games/firestore_multiplayer/lib/multiplayer/firestore_controller.dart
@@ -0,0 +1,147 @@
+import 'dart:async';
+
+import 'package:cloud_firestore/cloud_firestore.dart';
+import 'package:flutter/foundation.dart';
+import 'package:logging/logging.dart';
+
+import '../game_internals/board_state.dart';
+import '../game_internals/playing_area.dart';
+import '../game_internals/playing_card.dart';
+
+class FirestoreController {
+  static final _log = Logger('FirestoreController');
+
+  final FirebaseFirestore instance;
+
+  final BoardState boardState;
+
+  /// For now, there is only one match. But in order to be ready
+  /// for match-making, put it in a Firestore collection called matches.
+  late final _matchRef = instance.collection('matches').doc('match_1');
+
+  late final _areaOneRef = _matchRef
+      .collection('areas')
+      .doc('area_one')
+      .withConverter<List<PlayingCard>>(
+      fromFirestore: _cardsFromFirestore, toFirestore: _cardsToFirestore);
+
+  late final _areaTwoRef = _matchRef
+      .collection('areas')
+      .doc('area_two')
+      .withConverter<List<PlayingCard>>(
+      fromFirestore: _cardsFromFirestore, toFirestore: _cardsToFirestore);
+
+  StreamSubscription? _areaOneFirestoreSubscription;
+  StreamSubscription? _areaTwoFirestoreSubscription;
+
+  StreamSubscription? _areaOneLocalSubscription;
+  StreamSubscription? _areaTwoLocalSubscription;
+
+  FirestoreController({required this.instance, required this.boardState}) {
+    // Subscribe to the remote changes (from Firestore).
+    _areaOneFirestoreSubscription = _areaOneRef.snapshots().listen((snapshot) {
+      _updateLocalFromFirestore(boardState.areaOne, snapshot);
+    });
+    _areaTwoFirestoreSubscription = _areaTwoRef.snapshots().listen((snapshot) {
+      _updateLocalFromFirestore(boardState.areaTwo, snapshot);
+    });
+
+    // Subscribe to the local changes in game state.
+    _areaOneLocalSubscription = boardState.areaOne.playerChanges.listen((_) {
+      _updateFirestoreFromLocalAreaOne();
+    });
+    _areaTwoLocalSubscription = boardState.areaTwo.playerChanges.listen((_) {
+      _updateFirestoreFromLocalAreaTwo();
+    });
+
+    _log.fine('Initialized');
+  }
+
+  void dispose() {
+    _areaOneFirestoreSubscription?.cancel();
+    _areaTwoFirestoreSubscription?.cancel();
+    _areaOneLocalSubscription?.cancel();
+    _areaTwoLocalSubscription?.cancel();
+
+    _log.fine('Disposed');
+  }
+
+  /// Takes the raw JSON snapshot coming from Firestore and attempts to
+  /// convert it into a list of [PlayingCard]s.
+  List<PlayingCard> _cardsFromFirestore(
+      DocumentSnapshot<Map<String, dynamic>> snapshot,
+      SnapshotOptions? options,
+      ) {
+    final data = snapshot.data()?['cards'] as List?;
+
+    if (data == null) {
+      _log.info('No data found on Firestore, returning empty list');
+      return [];
+    }
+
+    final list = List.castFrom<Object?, Map<String, Object?>>(data);
+
+    try {
+      return list.map((raw) => PlayingCard.fromJson(raw)).toList();
+    } catch (e) {
+      throw FirebaseControllerException(
+          'Failed to parse data from Firestore: $e');
+    }
+  }
+
+  /// Takes a list of [PlayingCard]s and converts it into a JSON object
+  /// that can be saved into Firestore.
+  Map<String, Object?> _cardsToFirestore(
+      List<PlayingCard> cards,
+      SetOptions? options,
+      ) {
+    return {'cards': cards.map((c) => c.toJson()).toList()};
+  }
+
+  /// Updates Firestore with the local state of [area].
+  Future<void> _updateFirestoreFromLocal(
+      PlayingArea area, DocumentReference<List<PlayingCard>> ref) async {
+    try {
+      _log.fine('Updating Firestore with local data (${area.cards}) ...');
+      await ref.set(area.cards);
+      _log.fine('... done updating.');
+    } catch (e) {
+      throw FirebaseControllerException(
+          'Failed to update Firestore with local data (${area.cards}): $e');
+    }
+  }
+
+  /// Sends the local state of `boardState.areaOne` to Firestore.
+  void _updateFirestoreFromLocalAreaOne() {
+    _updateFirestoreFromLocal(boardState.areaOne, _areaOneRef);
+  }
+
+  /// Sends the local state of `boardState.areaTwo` to Firestore.
+  void _updateFirestoreFromLocalAreaTwo() {
+    _updateFirestoreFromLocal(boardState.areaTwo, _areaTwoRef);
+  }
+
+  /// Updates the local state of [area] with the data from Firestore.
+  void _updateLocalFromFirestore(
+      PlayingArea area, DocumentSnapshot<List<PlayingCard>> snapshot) {
+    _log.fine('Received new data from Firestore (${snapshot.data()})');
+
+    final cards = snapshot.data() ?? [];
+
+    if (listEquals(cards, area.cards)) {
+      _log.fine('No change');
+    } else {
+      _log.fine('Updating local data with Firestore data ($cards)');
+      area.replaceWith(cards);
+    }
+  }
+}
+
+class FirebaseControllerException implements Exception {
+  final String message;
+
+  FirebaseControllerException(this.message);
+
+  @override
+  String toString() => 'FirebaseControllerException: $message';
+}
diff --git a/examples/cookbook/games/firestore_multiplayer/lib/play_session/play_session_screen.dart b/examples/cookbook/games/firestore_multiplayer/lib/play_session/play_session_screen.dart
new file mode 100644
index 0000000000..15242fb66d
--- /dev/null
+++ b/examples/cookbook/games/firestore_multiplayer/lib/play_session/play_session_screen.dart
@@ -0,0 +1,64 @@
+// ignore_for_file: directives_ordering
+
+import 'package:flutter/material.dart';
+import 'package:logging/logging.dart' hide Level;
+import 'package:provider/provider.dart';
+
+import '../game_internals/board_state.dart';
+
+// #docregion imports
+import 'package:cloud_firestore/cloud_firestore.dart';
+import '../multiplayer/firestore_controller.dart';
+// #enddocregion imports
+
+class PlaySessionScreen extends StatefulWidget {
+  const PlaySessionScreen({super.key});
+
+  @override
+  State<PlaySessionScreen> createState() => _PlaySessionScreenState();
+}
+
+class _PlaySessionScreenState extends State<PlaySessionScreen> {
+  static final _log = Logger('PlaySessionScreen');
+
+  late final BoardState _boardState;
+
+  // #docregion controller
+  FirestoreController? _firestoreController;
+  // #enddocregion controller
+
+  @override
+  Widget build(BuildContext context) {
+    return const Placeholder();
+  }
+
+  @override
+  void dispose() {
+    _boardState.dispose();
+    // #docregion dispose
+    _firestoreController?.dispose();
+    // #enddocregion dispose
+    super.dispose();
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    _boardState = BoardState(onWin: _playerWon);
+
+    // #docregion initState
+    final firestore = context.read<FirebaseFirestore?>();
+    if (firestore == null) {
+      _log.warning("Firestore instance wasn't provided. "
+          'Running without _firestoreController.');
+    } else {
+      _firestoreController = FirestoreController(
+        instance: firestore,
+        boardState: _boardState,
+      );
+    }
+    // #enddocregion initState
+  }
+
+  void _playerWon() {}
+}
diff --git a/examples/cookbook/games/firestore_multiplayer/pubspec.yaml b/examples/cookbook/games/firestore_multiplayer/pubspec.yaml
new file mode 100644
index 0000000000..2dc52e48ed
--- /dev/null
+++ b/examples/cookbook/games/firestore_multiplayer/pubspec.yaml
@@ -0,0 +1,22 @@
+name: firestore_multiplayer
+description: Firestore multiplayer
+
+environment:
+  sdk: ^3.2.0
+
+dependencies:
+  flutter:
+    sdk: flutter
+
+  async: ^2.11.0
+  cloud_firestore: ^4.13.1
+  firebase_core: ^2.22.0
+  logging: ^1.2.0
+  provider: ^6.0.5
+
+dev_dependencies:
+  example_utils:
+    path: ../../../example_utils
+
+flutter:
+  uses-material-design: true
diff --git a/examples/cookbook/networking/background_parsing/lib/main_step3.dart b/examples/cookbook/networking/background_parsing/lib/main_step3.dart
index 23a4533f03..a9d5b7f2e5 100644
--- a/examples/cookbook/networking/background_parsing/lib/main_step3.dart
+++ b/examples/cookbook/networking/background_parsing/lib/main_step3.dart
@@ -16,7 +16,7 @@ Future<List<Photo>> fetchPhotos(http.Client client) async {
   final response = await client
       .get(Uri.parse('https://jsonplaceholder.typicode.com/photos'));
 
-  // Use the compute function to run parsePhotos in a separate isolate.
+  // Synchronously run parsePhotos in the main isolate.
   return parsePhotos(response.body);
 }
 // #enddocregion parsePhotos
diff --git a/examples/cookbook/plugins/google_mobile_ads/analysis_options.yaml b/examples/cookbook/plugins/google_mobile_ads/analysis_options.yaml
new file mode 100644
index 0000000000..f19b3149de
--- /dev/null
+++ b/examples/cookbook/plugins/google_mobile_ads/analysis_options.yaml
@@ -0,0 +1,9 @@
+# Take our settings from the example_utils analysis_options.yaml file.
+# If necessary for a particular example, this file can also include
+# overrides for individual lints.
+
+include: package:example_utils/analysis.yaml
+
+linter:
+  rules:
+    prefer_const_constructors: false
diff --git a/examples/cookbook/plugins/google_mobile_ads/lib/main.dart b/examples/cookbook/plugins/google_mobile_ads/lib/main.dart
new file mode 100644
index 0000000000..be2a623df5
--- /dev/null
+++ b/examples/cookbook/plugins/google_mobile_ads/lib/main.dart
@@ -0,0 +1,22 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:google_mobile_ads/google_mobile_ads.dart';
+
+// #docregion main
+void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+  unawaited(MobileAds.instance.initialize());
+
+  runApp(MyApp());
+}
+// #enddocregion main
+
+class MyApp extends StatelessWidget {
+  const MyApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Placeholder();
+  }
+}
diff --git a/examples/cookbook/plugins/google_mobile_ads/lib/my_banner_ad.dart b/examples/cookbook/plugins/google_mobile_ads/lib/my_banner_ad.dart
new file mode 100644
index 0000000000..b0516a5f2c
--- /dev/null
+++ b/examples/cookbook/plugins/google_mobile_ads/lib/my_banner_ad.dart
@@ -0,0 +1,96 @@
+import 'dart:io';
+
+import 'package:flutter/widgets.dart';
+import 'package:google_mobile_ads/google_mobile_ads.dart';
+
+class MyBannerAdWidget extends StatefulWidget {
+  /// The requested size of the banner. Defaults to [AdSize.banner].
+  final AdSize adSize;
+
+  /// The AdMob ad unit to show.
+  ///
+  /// TODO: replace this test ad unit with your own ad unit
+  // #docregion adUnitId
+  final String adUnitId = Platform.isAndroid
+      // Use this ad unit on Android...
+      ? 'ca-app-pub-3940256099942544/6300978111'
+      // ... or this one on iOS.
+      : 'ca-app-pub-3940256099942544/2934735716';
+  // #enddocregion adUnitId
+
+  MyBannerAdWidget({
+    super.key,
+    this.adSize = AdSize.banner,
+  });
+
+  @override
+  State<MyBannerAdWidget> createState() => _MyBannerAdWidgetState();
+}
+
+class _MyBannerAdWidgetState extends State<MyBannerAdWidget> {
+  /// The banner ad to show. This is `null` until the ad is actually loaded.
+  BannerAd? _bannerAd;
+
+  // #docregion build
+  @override
+  Widget build(BuildContext context) {
+    return SafeArea(
+      child: SizedBox(
+        width: widget.adSize.width.toDouble(),
+        height: widget.adSize.height.toDouble(),
+        child: _bannerAd == null
+        // Nothing to render yet.
+            ? SizedBox()
+        // The actual ad.
+            : AdWidget(ad: _bannerAd!),
+      ),
+    );
+  }
+  // #enddocregion build
+
+  @override
+  void initState() {
+    super.initState();
+    _loadAd();
+  }
+
+  @override
+  void dispose() {
+    // #docregion dispose
+    _bannerAd?.dispose();
+    // #enddocregion dispose
+    super.dispose();
+  }
+
+  // #docregion loadAd
+  /// Loads a banner ad.
+  void _loadAd() {
+    final bannerAd = BannerAd(
+      size: widget.adSize,
+      adUnitId: widget.adUnitId,
+      request: const AdRequest(),
+      listener: BannerAdListener(
+        // Called when an ad is successfully received.
+        onAdLoaded: (ad) {
+          if (!mounted) {
+            ad.dispose();
+            return;
+          }
+          setState(() {
+            _bannerAd = ad as BannerAd;
+          });
+        },
+        // Called when an ad request failed.
+        onAdFailedToLoad: (ad, error) {
+          debugPrint('BannerAd failed to load: $error');
+          ad.dispose();
+        },
+      ),
+    );
+
+    // Start loading.
+    bannerAd.load();
+  }
+  // #enddocregion loadAd
+
+}
diff --git a/examples/cookbook/plugins/google_mobile_ads/pubspec.yaml b/examples/cookbook/plugins/google_mobile_ads/pubspec.yaml
new file mode 100644
index 0000000000..84c2842452
--- /dev/null
+++ b/examples/cookbook/plugins/google_mobile_ads/pubspec.yaml
@@ -0,0 +1,18 @@
+name: google_mobile_ads_example
+description: Google mobile ads
+
+environment:
+  sdk: ^3.2.0
+
+dependencies:
+  flutter:
+    sdk: flutter
+
+  google_mobile_ads: ^4.0.0
+
+dev_dependencies:
+  example_utils:
+    path: ../../../example_utils
+
+flutter:
+  uses-material-design: true
diff --git a/examples/development/platform_integration/lib/generated_pigeon.dart b/examples/development/platform_integration/lib/generated_pigeon.dart
index 2d91642931..6704d9d99d 100644
--- a/examples/development/platform_integration/lib/generated_pigeon.dart
+++ b/examples/development/platform_integration/lib/generated_pigeon.dart
@@ -1,6 +1,6 @@
-// Autogenerated from Pigeon (v13.0.0), do not edit directly.
+// Autogenerated from Pigeon (v15.0.1), do not edit directly.
 // See also: https://pub.dev/packages/pigeon
-// ignore_for_file: public_member_api_docs, non_constant_identifier_names, avoid_as, unused_import, unnecessary_parenthesis, prefer_null_aware_operators, omit_local_variable_types, unused_shown_name, unnecessary_import
+// ignore_for_file: public_member_api_docs, non_constant_identifier_names, avoid_as, unused_import, unnecessary_parenthesis, prefer_null_aware_operators, omit_local_variable_types, unused_shown_name, unnecessary_import, no_leading_underscores_for_local_identifiers, constant_identifier_names
 
 import 'dart:async';
 import 'dart:typed_data' show Float64List, Int32List, Int64List, Uint8List;
@@ -8,15 +8,11 @@ import 'dart:typed_data' show Float64List, Int32List, Int64List, Uint8List;
 import 'package:flutter/foundation.dart' show ReadBuffer, WriteBuffer;
 import 'package:flutter/services.dart';
 
-List<Object?> wrapResponse(
-    {Object? result, PlatformException? error, bool empty = false}) {
-  if (empty) {
-    return <Object?>[];
-  }
-  if (error == null) {
-    return <Object?>[result];
-  }
-  return <Object?>[error.code, error.message, error.details];
+PlatformException _createConnectionError(String channelName) {
+  return PlatformException(
+    code: 'channel-error',
+    message: 'Unable to establish connection on channel: "$channelName".',
+  );
 }
 
 class SearchRequest {
@@ -93,35 +89,38 @@ class Api {
   /// Constructor for [Api].  The [binaryMessenger] named argument is
   /// available for dependency injection.  If it is left null, the default
   /// BinaryMessenger will be used which routes to the host platform.
-  Api({BinaryMessenger? binaryMessenger}) : _binaryMessenger = binaryMessenger;
-  final BinaryMessenger? _binaryMessenger;
-
-  static const MessageCodec<Object?> codec = _ApiCodec();
-
-  Future<SearchReply> search(SearchRequest arg_request) async {
-    final BasicMessageChannel<Object?> channel = BasicMessageChannel<Object?>(
-        'dev.flutter.pigeon.platform_integration.Api.search', codec,
-        binaryMessenger: _binaryMessenger);
-    final List<Object?>? replyList =
-        await channel.send(<Object?>[arg_request]) as List<Object?>?;
-    if (replyList == null) {
-      throw PlatformException(
-        code: 'channel-error',
-        message: 'Unable to establish connection on channel.',
-      );
-    } else if (replyList.length > 1) {
+  Api({BinaryMessenger? binaryMessenger})
+      : __pigeon_binaryMessenger = binaryMessenger;
+  final BinaryMessenger? __pigeon_binaryMessenger;
+
+  static const MessageCodec<Object?> pigeonChannelCodec = _ApiCodec();
+
+  Future<SearchReply> search(SearchRequest request) async {
+    const String __pigeon_channelName =
+        'dev.flutter.pigeon.platform_integration.Api.search';
+    final BasicMessageChannel<Object?> __pigeon_channel =
+        BasicMessageChannel<Object?>(
+      __pigeon_channelName,
+      pigeonChannelCodec,
+      binaryMessenger: __pigeon_binaryMessenger,
+    );
+    final List<Object?>? __pigeon_replyList =
+        await __pigeon_channel.send(<Object?>[request]) as List<Object?>?;
+    if (__pigeon_replyList == null) {
+      throw _createConnectionError(__pigeon_channelName);
+    } else if (__pigeon_replyList.length > 1) {
       throw PlatformException(
-        code: replyList[0]! as String,
-        message: replyList[1] as String?,
-        details: replyList[2],
+        code: __pigeon_replyList[0]! as String,
+        message: __pigeon_replyList[1] as String?,
+        details: __pigeon_replyList[2],
       );
-    } else if (replyList[0] == null) {
+    } else if (__pigeon_replyList[0] == null) {
       throw PlatformException(
         code: 'null-error',
         message: 'Host platform returned null value for non-null return value.',
       );
     } else {
-      return (replyList[0] as SearchReply?)!;
+      return (__pigeon_replyList[0] as SearchReply?)!;
     }
   }
 }
diff --git a/examples/development/platform_integration/pubspec.yaml b/examples/development/platform_integration/pubspec.yaml
index 2e04ca2ec9..3b7f689e1a 100644
--- a/examples/development/platform_integration/pubspec.yaml
+++ b/examples/development/platform_integration/pubspec.yaml
@@ -11,7 +11,7 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  pigeon: ^14.0.0
+  pigeon: ^15.0.1
 
   cupertino_icons: ^1.0.6
 
diff --git a/examples/layout/base/lib/main.dart b/examples/layout/base/lib/main.dart
index f4b93173ec..0394b52917 100644
--- a/examples/layout/base/lib/main.dart
+++ b/examples/layout/base/lib/main.dart
@@ -13,11 +13,12 @@ class MyApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    const String appTitle = 'Flutter layout demo';
     return MaterialApp(
-      title: 'Flutter layout demo',
+      title: appTitle,
       home: Scaffold(
         appBar: AppBar(
-          title: const Text('Flutter layout demo'),
+          title: const Text(appTitle),
         ),
         // #docregion centered-text
         body: const Center(
@@ -30,4 +31,5 @@ class MyApp extends StatelessWidget {
     );
   }
 }
+
 // #enddocregion all
diff --git a/examples/layout/lakes/interactive/lib/main.dart b/examples/layout/lakes/interactive/lib/main.dart
index 82ab3b923a..becf52f2af 100644
--- a/examples/layout/lakes/interactive/lib/main.dart
+++ b/examples/layout/lakes/interactive/lib/main.dart
@@ -7,7 +7,55 @@ class MyApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    Widget titleSection = Container(
+    const String appTitle = 'Flutter layout demo';
+    return MaterialApp(
+      title: appTitle,
+      home: Scaffold(
+        appBar: AppBar(
+          title: const Text(appTitle),
+        ),
+        body: const SingleChildScrollView(
+          child: Column(
+            children: [
+              ImageSection(
+                image: 'images/lake.jpg',
+              ),
+              TitleSection(
+                name: 'Oeschinen Lake Campground',
+                location: 'Kandersteg, Switzerland',
+              ),
+              ButtonSection(),
+              TextSection(
+                description:
+                    'Lake Oeschinen lies at the foot of the Blüemlisalp in the '
+                    'Bernese Alps. Situated 1,578 meters above sea level, it '
+                    'is one of the larger Alpine Lakes. A gondola ride from '
+                    'Kandersteg, followed by a half-hour walk through pastures '
+                    'and pine forest, leads you to the lake, which warms to 20 '
+                    'degrees Celsius in the summer. Activities enjoyed here '
+                    'include rowing, and riding the summer toboggan run.',
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+class TitleSection extends StatelessWidget {
+  const TitleSection({
+    super.key,
+    required this.name,
+    required this.location,
+  });
+
+  final String name;
+  final String location;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
       padding: const EdgeInsets.all(32),
       child: Row(
         children: [
@@ -17,17 +65,17 @@ class MyApp extends StatelessWidget {
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
                 /*2*/
-                Container(
+                Padding(
                   padding: const EdgeInsets.only(bottom: 8),
-                  child: const Text(
-                    'Oeschinen Lake Campground',
-                    style: TextStyle(
+                  child: Text(
+                    name,
+                    style: const TextStyle(
                       fontWeight: FontWeight.bold,
                     ),
                   ),
                 ),
                 Text(
-                  'Kandersteg, Switzerland',
+                  location,
                   style: TextStyle(
                     color: Colors.grey[500],
                   ),
@@ -39,64 +87,61 @@ class MyApp extends StatelessWidget {
         ],
       ),
     );
+  }
+}
 
-    Color color = Theme.of(context).primaryColor;
+class ButtonSection extends StatelessWidget {
+  const ButtonSection({super.key});
 
-    Widget buttonSection = SizedBox(
+  @override
+  Widget build(BuildContext context) {
+    final Color color = Theme.of(context).primaryColor;
+    return SizedBox(
       child: Row(
         mainAxisAlignment: MainAxisAlignment.spaceEvenly,
         children: [
-          _buildButtonColumn(color, Icons.call, 'CALL'),
-          _buildButtonColumn(color, Icons.near_me, 'ROUTE'),
-          _buildButtonColumn(color, Icons.share, 'SHARE'),
+          ButtonWithText(
+            color: color,
+            icon: Icons.call,
+            label: 'CALL',
+          ),
+          ButtonWithText(
+            color: color,
+            icon: Icons.near_me,
+            label: 'ROUTE',
+          ),
+          ButtonWithText(
+            color: color,
+            icon: Icons.share,
+            label: 'SHARE',
+          ),
         ],
       ),
     );
+  }
+}
 
-    Widget textSection = Container(
-      padding: const EdgeInsets.all(32),
-      child: const Text(
-        'Lake Oeschinen lies at the foot of the Blüemlisalp in the Bernese '
-        'Alps. Situated 1,578 meters above sea level, it is one of the '
-        'larger Alpine Lakes. A gondola ride from Kandersteg, followed by a '
-        'half-hour walk through pastures and pine forest, leads you to the '
-        'lake, which warms to 20 degrees Celsius in the summer. Activities '
-        'enjoyed here include rowing, and riding the summer toboggan run.',
-        softWrap: true,
-      ),
-    );
+class ButtonWithText extends StatelessWidget {
+  const ButtonWithText({
+    super.key,
+    required this.color,
+    required this.icon,
+    required this.label,
+  });
 
-    return MaterialApp(
-      title: 'Flutter layout demo',
-      home: Scaffold(
-        appBar: AppBar(
-          title: const Text('Flutter layout demo'),
-        ),
-        body: ListView(
-          children: [
-            Image.asset(
-              'images/lake.jpg',
-              width: 600,
-              height: 240,
-              fit: BoxFit.cover,
-            ),
-            titleSection,
-            buttonSection,
-            textSection,
-          ],
-        ),
-      ),
-    );
-  }
+  final Color color;
+  final IconData icon;
+  final String label;
 
-  Column _buildButtonColumn(Color color, IconData icon, String label) {
+  @override
+  Widget build(BuildContext context) {
     return Column(
       mainAxisSize: MainAxisSize.min,
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
         Icon(icon, color: color),
-        Container(
-          margin: const EdgeInsets.only(top: 8),
+        Padding(
+          padding: const EdgeInsets.only(top: 8),
           child: Text(
             label,
             style: TextStyle(
@@ -111,6 +156,42 @@ class MyApp extends StatelessWidget {
   }
 }
 
+class TextSection extends StatelessWidget {
+  const TextSection({
+    super.key,
+    required this.description,
+  });
+
+  final String description;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.all(32),
+      child: Text(
+        description,
+        softWrap: true,
+      ),
+    );
+  }
+}
+
+class ImageSection extends StatelessWidget {
+  const ImageSection({super.key, required this.image});
+
+  final String image;
+
+  @override
+  Widget build(BuildContext context) {
+    return Image.asset(
+      image,
+      width: 600,
+      height: 240,
+      fit: BoxFit.cover,
+    );
+  }
+}
+
 // #docregion FavoriteWidget
 class FavoriteWidget extends StatefulWidget {
   const FavoriteWidget({super.key});
diff --git a/examples/layout/lakes/step2/lib/main.dart b/examples/layout/lakes/step2/lib/main.dart
index fb11da0fb8..dcc29dabd5 100644
--- a/examples/layout/lakes/step2/lib/main.dart
+++ b/examples/layout/lakes/step2/lib/main.dart
@@ -7,8 +7,44 @@ class MyApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    // #docregion titleSection
-    Widget titleSection = Container(
+    const String appTitle = 'Flutter layout demo';
+    return MaterialApp(
+      title: appTitle,
+      home: Scaffold(
+        appBar: AppBar(
+          title: const Text(appTitle),
+        ),
+        // #docregion addWidget
+        body: const SingleChildScrollView(
+          child: Column(
+            children: [
+              TitleSection(
+                name: 'Oeschinen Lake Campground',
+                location: 'Kandersteg, Switzerland',
+              ),
+            ],
+          ),
+        ),
+        // #enddocregion addWidget
+      ),
+    );
+  }
+}
+
+// #docregion titleSection
+class TitleSection extends StatelessWidget {
+  const TitleSection({
+    super.key,
+    required this.name,
+    required this.location,
+  });
+
+  final String name;
+  final String location;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
       padding: const EdgeInsets.all(32),
       child: Row(
         children: [
@@ -18,17 +54,17 @@ class MyApp extends StatelessWidget {
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
                 /*2*/
-                Container(
+                Padding(
                   padding: const EdgeInsets.only(bottom: 8),
-                  child: const Text(
-                    'Oeschinen Lake Campground',
-                    style: TextStyle(
+                  child: Text(
+                    name,
+                    style: const TextStyle(
                       fontWeight: FontWeight.bold,
                     ),
                   ),
                 ),
                 Text(
-                  'Kandersteg, Switzerland',
+                  location,
                   style: TextStyle(
                     color: Colors.grey[500],
                   ),
@@ -45,20 +81,6 @@ class MyApp extends StatelessWidget {
         ],
       ),
     );
-    // #enddocregion titleSection
-
-    return MaterialApp(
-      title: 'Flutter layout demo',
-      home: Scaffold(
-        appBar: AppBar(
-          title: const Text('Flutter layout demo'),
-        ),
-        body: Column(
-          children: [
-            titleSection,
-          ],
-        ),
-      ),
-    );
   }
 }
+// #enddocregion titleSection
diff --git a/examples/layout/lakes/step3/lib/main.dart b/examples/layout/lakes/step3/lib/main.dart
index 43e6efdbc5..f96b9a3f83 100644
--- a/examples/layout/lakes/step3/lib/main.dart
+++ b/examples/layout/lakes/step3/lib/main.dart
@@ -2,14 +2,49 @@ import 'package:flutter/material.dart';
 
 void main() => runApp(const MyApp());
 
-// #docregion _buildButtonColumn
 class MyApp extends StatelessWidget {
   const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
-    // #enddocregion _buildButtonColumn
-    Widget titleSection = Container(
+    const String appTitle = 'Flutter layout demo';
+    return MaterialApp(
+      title: appTitle,
+      home: Scaffold(
+        appBar: AppBar(
+          title: const Text(appTitle),
+        ),
+        // #docregion addWidget
+        body: const SingleChildScrollView(
+          child: Column(
+            children: [
+              TitleSection(
+                name: 'Oeschinen Lake Campground',
+                location: 'Kandersteg, Switzerland',
+              ),
+              ButtonSection(),
+            ],
+          ),
+        ),
+        // #enddocregion addWidget
+      ),
+    );
+  }
+}
+
+class TitleSection extends StatelessWidget {
+  const TitleSection({
+    super.key,
+    required this.name,
+    required this.location,
+  });
+
+  final String name;
+  final String location;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
       padding: const EdgeInsets.all(32),
       child: Row(
         children: [
@@ -19,17 +54,17 @@ class MyApp extends StatelessWidget {
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
                 /*2*/
-                Container(
+                Padding(
                   padding: const EdgeInsets.only(bottom: 8),
-                  child: const Text(
-                    'Oeschinen Lake Campground',
-                    style: TextStyle(
+                  child: Text(
+                    name,
+                    style: const TextStyle(
                       fontWeight: FontWeight.bold,
                     ),
                   ),
                 ),
                 Text(
-                  'Kandersteg, Switzerland',
+                  location,
                   style: TextStyle(
                     color: Colors.grey[500],
                   ),
@@ -46,45 +81,70 @@ class MyApp extends StatelessWidget {
         ],
       ),
     );
+  }
+}
 
-    // #docregion buttonSection
-    Color color = Theme.of(context).primaryColor;
+// #docregion ButtonStart
+// #docregion ButtonSection
+// #docregion ButtonWithText
+class ButtonSection extends StatelessWidget {
+  const ButtonSection({super.key});
+// #enddocregion ButtonWithText
 
-    Widget buttonSection = Row(
-      mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-      children: [
-        _buildButtonColumn(color, Icons.call, 'CALL'),
-        _buildButtonColumn(color, Icons.near_me, 'ROUTE'),
-        _buildButtonColumn(color, Icons.share, 'SHARE'),
-      ],
-    );
-    // #enddocregion buttonSection
-
-    return MaterialApp(
-      title: 'Flutter layout demo',
-      home: Scaffold(
-        appBar: AppBar(
-          title: const Text('Flutter layout demo'),
-        ),
-        body: Column(
-          children: [
-            titleSection,
-            buttonSection,
-          ],
-        ),
+  @override
+  Widget build(BuildContext context) {
+    final Color color = Theme.of(context).primaryColor;
+// #enddocregion ButtonStart
+    return SizedBox(
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+        children: [
+          ButtonWithText(
+            color: color,
+            icon: Icons.call,
+            label: 'CALL',
+          ),
+          ButtonWithText(
+            color: color,
+            icon: Icons.near_me,
+            label: 'ROUTE',
+          ),
+          ButtonWithText(
+            color: color,
+            icon: Icons.share,
+            label: 'SHARE',
+          ),
+        ],
       ),
     );
-    // #docregion _buildButtonColumn
+// #docregion ButtonStart
   }
+// #docregion ButtonWithText
+}
+// #enddocregion ButtonStart
 
-  Column _buildButtonColumn(Color color, IconData icon, String label) {
+class ButtonWithText extends StatelessWidget {
+  const ButtonWithText({
+    super.key,
+    required this.color,
+    required this.icon,
+    required this.label,
+  });
+
+  final Color color;
+  final IconData icon;
+  final String label;
+
+  @override
+  Widget build(BuildContext context) {
     return Column(
+// #enddocregion ButtonSection
       mainAxisSize: MainAxisSize.min,
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
         Icon(icon, color: color),
-        Container(
-          margin: const EdgeInsets.only(top: 8),
+        Padding(
+          padding: const EdgeInsets.only(top: 8),
           child: Text(
             label,
             style: TextStyle(
@@ -95,6 +155,9 @@ class MyApp extends StatelessWidget {
           ),
         ),
       ],
+// #docregion ButtonSection
     );
   }
+// #enddocregion ButtonWithText
 }
+// #enddocregion ButtonSection
diff --git a/examples/layout/lakes/step4/lib/main.dart b/examples/layout/lakes/step4/lib/main.dart
index d13304b71e..65c55b33d5 100644
--- a/examples/layout/lakes/step4/lib/main.dart
+++ b/examples/layout/lakes/step4/lib/main.dart
@@ -2,12 +2,63 @@ import 'package:flutter/material.dart';
 
 void main() => runApp(const MyApp());
 
+// #docregion TextAdd
 class MyApp extends StatelessWidget {
   const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
-    Widget titleSection = Container(
+// #enddocregion TextAdd
+    const String appTitle = 'Flutter layout demo';
+    return MaterialApp(
+      title: appTitle,
+      home: Scaffold(
+        appBar: AppBar(
+          title: const Text(appTitle),
+        ),
+        // #docregion addWidget
+        // #docregion TextAdd
+        body: const SingleChildScrollView(
+          child: Column(
+            children: [
+              TitleSection(
+                name: 'Oeschinen Lake Campground',
+                location: 'Kandersteg, Switzerland',
+              ),
+              ButtonSection(),
+              TextSection(
+                description:
+                    'Lake Oeschinen lies at the foot of the Blüemlisalp in the '
+                    'Bernese Alps. Situated 1,578 meters above sea level, it '
+                    'is one of the larger Alpine Lakes. A gondola ride from '
+                    'Kandersteg, followed by a half-hour walk through pastures '
+                    'and pine forest, leads you to the lake, which warms to 20 '
+                    'degrees Celsius in the summer. Activities enjoyed here '
+                    'include rowing, and riding the summer toboggan run.',
+              ),
+            ],
+          ),
+        ),
+        // #enddocregion addWidget
+      ),
+    );
+  }
+}
+// #enddocregion TextAdd
+
+class TitleSection extends StatelessWidget {
+  const TitleSection({
+    super.key,
+    required this.name,
+    required this.location,
+  });
+
+  final String name;
+  final String location;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
       padding: const EdgeInsets.all(32),
       child: Row(
         children: [
@@ -17,17 +68,17 @@ class MyApp extends StatelessWidget {
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
                 /*2*/
-                Container(
+                Padding(
                   padding: const EdgeInsets.only(bottom: 8),
-                  child: const Text(
-                    'Oeschinen Lake Campground',
-                    style: TextStyle(
+                  child: Text(
+                    name,
+                    style: const TextStyle(
                       fontWeight: FontWeight.bold,
                     ),
                   ),
                 ),
                 Text(
-                  'Kandersteg, Switzerland',
+                  location,
                   style: TextStyle(
                     color: Colors.grey[500],
                   ),
@@ -44,58 +95,61 @@ class MyApp extends StatelessWidget {
         ],
       ),
     );
+  }
+}
 
-    Color color = Theme.of(context).primaryColor;
-
-    Widget buttonSection = Row(
-      mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-      children: [
-        _buildButtonColumn(color, Icons.call, 'CALL'),
-        _buildButtonColumn(color, Icons.near_me, 'ROUTE'),
-        _buildButtonColumn(color, Icons.share, 'SHARE'),
-      ],
-    );
-
-    // #docregion textSection
-    Widget textSection = Container(
-      padding: const EdgeInsets.all(32),
-      child: const Text(
-        'Lake Oeschinen lies at the foot of the Blüemlisalp in the Bernese '
-        'Alps. Situated 1,578 meters above sea level, it is one of the '
-        'larger Alpine Lakes. A gondola ride from Kandersteg, followed by a '
-        'half-hour walk through pastures and pine forest, leads you to the '
-        'lake, which warms to 20 degrees Celsius in the summer. Activities '
-        'enjoyed here include rowing, and riding the summer toboggan run.',
-        softWrap: true,
-      ),
-    );
-    // #enddocregion textSection
+class ButtonSection extends StatelessWidget {
+  const ButtonSection({super.key});
 
-    return MaterialApp(
-      title: 'Flutter layout demo',
-      home: Scaffold(
-        appBar: AppBar(
-          title: const Text('Flutter layout demo'),
-        ),
-        body: Column(
-          children: [
-            titleSection,
-            buttonSection,
-            textSection,
-          ],
-        ),
+  @override
+  Widget build(BuildContext context) {
+    final Color color = Theme.of(context).primaryColor;
+    return SizedBox(
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+        children: [
+          ButtonWithText(
+            color: color,
+            icon: Icons.call,
+            label: 'CALL',
+          ),
+          ButtonWithText(
+            color: color,
+            icon: Icons.near_me,
+            label: 'ROUTE',
+          ),
+          ButtonWithText(
+            color: color,
+            icon: Icons.share,
+            label: 'SHARE',
+          ),
+        ],
       ),
     );
   }
+}
+
+class ButtonWithText extends StatelessWidget {
+  const ButtonWithText({
+    super.key,
+    required this.color,
+    required this.icon,
+    required this.label,
+  });
+
+  final Color color;
+  final IconData icon;
+  final String label;
 
-  Column _buildButtonColumn(Color color, IconData icon, String label) {
+  @override
+  Widget build(BuildContext context) {
     return Column(
       mainAxisSize: MainAxisSize.min,
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
         Icon(icon, color: color),
-        Container(
-          margin: const EdgeInsets.only(top: 8),
+        Padding(
+          padding: const EdgeInsets.only(top: 8),
           child: Text(
             label,
             style: TextStyle(
@@ -109,3 +163,25 @@ class MyApp extends StatelessWidget {
     );
   }
 }
+
+// #docregion TextSection
+class TextSection extends StatelessWidget {
+  const TextSection({
+    super.key,
+    required this.description,
+  });
+
+  final String description;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.all(32),
+      child: Text(
+        description,
+        softWrap: true,
+      ),
+    );
+  }
+}
+// #enddocregion TextSection
diff --git a/examples/layout/lakes/step5/lib/main.dart b/examples/layout/lakes/step5/lib/main.dart
index f994bc43ba..74ce3a971f 100644
--- a/examples/layout/lakes/step5/lib/main.dart
+++ b/examples/layout/lakes/step5/lib/main.dart
@@ -7,7 +7,57 @@ class MyApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    Widget titleSection = Container(
+    const String appTitle = 'Flutter layout demo';
+    return MaterialApp(
+      title: appTitle,
+      home: Scaffold(
+        appBar: AppBar(
+          title: const Text(appTitle),
+        ),
+        // #docregion addWidget
+        body: const SingleChildScrollView(
+          child: Column(
+            children: [
+              ImageSection(
+                image: 'images/lake.jpg',
+              ),
+              TitleSection(
+                name: 'Oeschinen Lake Campground',
+                location: 'Kandersteg, Switzerland',
+              ),
+              ButtonSection(),
+              TextSection(
+                description:
+                    'Lake Oeschinen lies at the foot of the Blüemlisalp in the '
+                    'Bernese Alps. Situated 1,578 meters above sea level, it '
+                    'is one of the larger Alpine Lakes. A gondola ride from '
+                    'Kandersteg, followed by a half-hour walk through pastures '
+                    'and pine forest, leads you to the lake, which warms to 20 '
+                    'degrees Celsius in the summer. Activities enjoyed here '
+                    'include rowing, and riding the summer toboggan run.',
+              ),
+            ],
+          ),
+        ),
+        // #enddocregion addWidget
+      ),
+    );
+  }
+}
+
+class TitleSection extends StatelessWidget {
+  const TitleSection({
+    super.key,
+    required this.name,
+    required this.location,
+  });
+
+  final String name;
+  final String location;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
       padding: const EdgeInsets.all(32),
       child: Row(
         children: [
@@ -17,17 +67,17 @@ class MyApp extends StatelessWidget {
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
                 /*2*/
-                Container(
+                Padding(
                   padding: const EdgeInsets.only(bottom: 8),
-                  child: const Text(
-                    'Oeschinen Lake Campground',
-                    style: TextStyle(
+                  child: Text(
+                    name,
+                    style: const TextStyle(
                       fontWeight: FontWeight.bold,
                     ),
                   ),
                 ),
                 Text(
-                  'Kandersteg, Switzerland',
+                  location,
                   style: TextStyle(
                     color: Colors.grey[500],
                   ),
@@ -46,66 +96,61 @@ class MyApp extends StatelessWidget {
         ],
       ),
     );
+  }
+}
 
-    Color color = Theme.of(context).primaryColor;
-
-    Widget buttonSection = Row(
-      mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-      children: [
-        _buildButtonColumn(color, Icons.call, 'CALL'),
-        _buildButtonColumn(color, Icons.near_me, 'ROUTE'),
-        _buildButtonColumn(color, Icons.share, 'SHARE'),
-      ],
-    );
-
-    // #docregion textSection
-    Widget textSection = Container(
-      padding: const EdgeInsets.all(32),
-      child: const Text(
-        'Lake Oeschinen lies at the foot of the Blüemlisalp in the Bernese '
-        'Alps. Situated 1,578 meters above sea level, it is one of the '
-        'larger Alpine Lakes. A gondola ride from Kandersteg, followed by a '
-        'half-hour walk through pastures and pine forest, leads you to the '
-        'lake, which warms to 20 degrees Celsius in the summer. Activities '
-        'enjoyed here include rowing, and riding the summer toboggan run.',
-        softWrap: true,
-      ),
-    );
-    // #enddocregion textSection
+class ButtonSection extends StatelessWidget {
+  const ButtonSection({super.key});
 
-    return MaterialApp(
-      title: 'Flutter layout demo',
-      home: Scaffold(
-        appBar: AppBar(
-          title: const Text('Flutter layout demo'),
-        ),
-        body: Column(
-          children: [
-            // #docregion Image-asset
-            Image.asset(
-              'images/lake.jpg',
-              width: 600,
-              height: 240,
-              fit: BoxFit.cover,
-            ),
-            // #enddocregion Image-asset
-            titleSection,
-            buttonSection,
-            textSection,
-          ],
-        ),
+  @override
+  Widget build(BuildContext context) {
+    final Color color = Theme.of(context).primaryColor;
+    return SizedBox(
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+        children: [
+          ButtonWithText(
+            color: color,
+            icon: Icons.call,
+            label: 'CALL',
+          ),
+          ButtonWithText(
+            color: color,
+            icon: Icons.near_me,
+            label: 'ROUTE',
+          ),
+          ButtonWithText(
+            color: color,
+            icon: Icons.share,
+            label: 'SHARE',
+          ),
+        ],
       ),
     );
   }
+}
+
+class ButtonWithText extends StatelessWidget {
+  const ButtonWithText({
+    super.key,
+    required this.color,
+    required this.icon,
+    required this.label,
+  });
 
-  Column _buildButtonColumn(Color color, IconData icon, String label) {
+  final Color color;
+  final IconData icon;
+  final String label;
+
+  @override
+  Widget build(BuildContext context) {
     return Column(
       mainAxisSize: MainAxisSize.min,
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
         Icon(icon, color: color),
-        Container(
-          margin: const EdgeInsets.only(top: 8),
+        Padding(
+          padding: const EdgeInsets.only(top: 8),
           child: Text(
             label,
             style: TextStyle(
@@ -119,3 +164,43 @@ class MyApp extends StatelessWidget {
     );
   }
 }
+
+class TextSection extends StatelessWidget {
+  const TextSection({
+    super.key,
+    required this.description,
+  });
+
+  final String description;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.all(32),
+      child: Text(
+        description,
+        softWrap: true,
+      ),
+    );
+  }
+}
+
+// #docregion ImageSection
+class ImageSection extends StatelessWidget {
+  const ImageSection({super.key, required this.image});
+
+  final String image;
+
+  @override
+  Widget build(BuildContext context) {
+    // #docregion Image-asset
+    return Image.asset(
+      image,
+      width: 600,
+      height: 240,
+      fit: BoxFit.cover,
+    );
+    // #enddocregion Image-asset
+  }
+}
+// #enddocregion ImageSection
diff --git a/examples/layout/lakes/step5/test/widget_test.dart b/examples/layout/lakes/step5/test/widget_test.dart
index 723434bfcd..f619c4ad19 100644
--- a/examples/layout/lakes/step5/test/widget_test.dart
+++ b/examples/layout/lakes/step5/test/widget_test.dart
@@ -1,20 +1,12 @@
 // Basic Flutter widget test.
 // Learn more at https://docs.flutter.dev/testing/overview#widget-tests.
 
-import 'package:flutter/foundation.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:layout/main.dart';
 
 void main() {
   testWidgets('Example app smoke test', (tester) async {
     await tester.pumpWidget(const MyApp());
-    final error = tester.takeException();
-    expect(error, isFlutterError);
-    final flutterError = error as FlutterError;
-    expect(
-      flutterError.message,
-      matches(RegExp(r'A RenderFlex overflowed by \d+ pixels on the bottom\.')),
-    );
 
     expect(find.text('Oeschinen Lake Campground'), findsOneWidget);
     expect(find.text('ROUTE'), findsOneWidget);
diff --git a/examples/layout/lakes/step6/lib/main.dart b/examples/layout/lakes/step6/lib/main.dart
index cc63dc03b2..84fbb1c6a1 100644
--- a/examples/layout/lakes/step6/lib/main.dart
+++ b/examples/layout/lakes/step6/lib/main.dart
@@ -1,18 +1,63 @@
 import 'package:flutter/material.dart';
-// Uncomment lines 3 and 6 to view the visual layout at runtime.
-// import 'package:flutter/rendering.dart' show debugPaintSizeEnabled;
 
-void main() {
-  // debugPaintSizeEnabled = true;
-  runApp(const MyApp());
-}
+void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
   const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
-    Widget titleSection = Container(
+    const String appTitle = 'Flutter layout demo';
+    return MaterialApp(
+      title: appTitle,
+      home: Scaffold(
+        appBar: AppBar(
+          title: const Text(appTitle),
+        ),
+        // #docregion addWidget
+        body: const SingleChildScrollView(
+          child: Column(
+            children: [
+              ImageSection(
+                image: 'images/lake.jpg',
+              ),
+              TitleSection(
+                name: 'Oeschinen Lake Campground',
+                location: 'Kandersteg, Switzerland',
+              ),
+              ButtonSection(),
+              TextSection(
+                description:
+                    'Lake Oeschinen lies at the foot of the Blüemlisalp in the '
+                    'Bernese Alps. Situated 1,578 meters above sea level, it '
+                    'is one of the larger Alpine Lakes. A gondola ride from '
+                    'Kandersteg, followed by a half-hour walk through pastures '
+                    'and pine forest, leads you to the lake, which warms to 20 '
+                    'degrees Celsius in the summer. Activities enjoyed here '
+                    'include rowing, and riding the summer toboggan run.',
+              ),
+            ],
+          ),
+        ),
+        // #enddocregion addWidget
+      ),
+    );
+  }
+}
+
+class TitleSection extends StatelessWidget {
+  const TitleSection({
+    super.key,
+    required this.name,
+    required this.location,
+  });
+
+  final String name;
+  final String location;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
       padding: const EdgeInsets.all(32),
       child: Row(
         children: [
@@ -22,17 +67,17 @@ class MyApp extends StatelessWidget {
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
                 /*2*/
-                Container(
+                Padding(
                   padding: const EdgeInsets.only(bottom: 8),
-                  child: const Text(
-                    'Oeschinen Lake Campground',
-                    style: TextStyle(
+                  child: Text(
+                    name,
+                    style: const TextStyle(
                       fontWeight: FontWeight.bold,
                     ),
                   ),
                 ),
                 Text(
-                  'Kandersteg, Switzerland',
+                  location,
                   style: TextStyle(
                     color: Colors.grey[500],
                   ),
@@ -41,70 +86,71 @@ class MyApp extends StatelessWidget {
             ),
           ),
           /*3*/
+          // #docregion Icon
           Icon(
             Icons.star,
             color: Colors.red[500],
           ),
+          // #enddocregion Icon
           const Text('41'),
         ],
       ),
     );
+  }
+}
 
-    Color color = Theme.of(context).primaryColor;
-
-    Widget buttonSection = Row(
-      mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-      children: [
-        _buildButtonColumn(color, Icons.call, 'CALL'),
-        _buildButtonColumn(color, Icons.near_me, 'ROUTE'),
-        _buildButtonColumn(color, Icons.share, 'SHARE'),
-      ],
-    );
+class ButtonSection extends StatelessWidget {
+  const ButtonSection({super.key});
 
-    Widget textSection = Container(
-      padding: const EdgeInsets.all(32),
-      child: const Text(
-        'Lake Oeschinen lies at the foot of the Blüemlisalp in the Bernese '
-        'Alps. Situated 1,578 meters above sea level, it is one of the '
-        'larger Alpine Lakes. A gondola ride from Kandersteg, followed by a '
-        'half-hour walk through pastures and pine forest, leads you to the '
-        'lake, which warms to 20 degrees Celsius in the summer. Activities '
-        'enjoyed here include rowing, and riding the summer toboggan run.',
-        softWrap: true,
-      ),
-    );
-
-    return MaterialApp(
-      title: 'Flutter layout demo',
-      home: Scaffold(
-        appBar: AppBar(
-          title: const Text('Flutter layout demo'),
-        ),
-        body: ListView(
-          children: [
-            Image.asset(
-              'images/lake.jpg',
-              width: 600,
-              height: 240,
-              fit: BoxFit.cover,
-            ),
-            titleSection,
-            buttonSection,
-            textSection,
-          ],
-        ),
+  @override
+  Widget build(BuildContext context) {
+    final Color color = Theme.of(context).primaryColor;
+    return SizedBox(
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+        children: [
+          ButtonWithText(
+            color: color,
+            icon: Icons.call,
+            label: 'CALL',
+          ),
+          ButtonWithText(
+            color: color,
+            icon: Icons.near_me,
+            label: 'ROUTE',
+          ),
+          ButtonWithText(
+            color: color,
+            icon: Icons.share,
+            label: 'SHARE',
+          ),
+        ],
       ),
     );
   }
+}
+
+class ButtonWithText extends StatelessWidget {
+  const ButtonWithText({
+    super.key,
+    required this.color,
+    required this.icon,
+    required this.label,
+  });
 
-  Column _buildButtonColumn(Color color, IconData icon, String label) {
+  final Color color;
+  final IconData icon;
+  final String label;
+
+  @override
+  Widget build(BuildContext context) {
     return Column(
       mainAxisSize: MainAxisSize.min,
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
         Icon(icon, color: color),
-        Container(
-          margin: const EdgeInsets.only(top: 8),
+        Padding(
+          padding: const EdgeInsets.only(top: 8),
           child: Text(
             label,
             style: TextStyle(
@@ -118,3 +164,105 @@ class MyApp extends StatelessWidget {
     );
   }
 }
+
+class TextSection extends StatelessWidget {
+  const TextSection({
+    super.key,
+    required this.description,
+  });
+
+  final String description;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.all(32),
+      child: Text(
+        description,
+        softWrap: true,
+      ),
+    );
+  }
+}
+
+// #docregion ImageSection
+class ImageSection extends StatelessWidget {
+  const ImageSection({super.key, required this.image});
+
+  final String image;
+
+  @override
+  Widget build(BuildContext context) {
+    // #docregion Image-asset
+    return Image.asset(
+      image,
+      width: 600,
+      height: 240,
+      fit: BoxFit.cover,
+    );
+    // #enddocregion Image-asset
+  }
+}
+// #enddocregion ImageSection
+
+// #docregion FavoriteWidget
+class FavoriteWidget extends StatefulWidget {
+  const FavoriteWidget({super.key});
+
+  @override
+  State<FavoriteWidget> createState() => _FavoriteWidgetState();
+}
+// #enddocregion FavoriteWidget
+
+// #docregion _FavoriteWidgetState, _FavoriteWidgetState-fields, _FavoriteWidgetState-build
+class _FavoriteWidgetState extends State<FavoriteWidget> {
+  // #enddocregion _FavoriteWidgetState-build
+  bool _isFavorited = true;
+  int _favoriteCount = 41;
+
+  // #enddocregion _FavoriteWidgetState-fields
+
+  // #docregion _toggleFavorite
+  void _toggleFavorite() {
+    setState(() {
+      if (_isFavorited) {
+        _favoriteCount -= 1;
+        _isFavorited = false;
+      } else {
+        _favoriteCount += 1;
+        _isFavorited = true;
+      }
+    });
+  }
+
+  // #enddocregion _toggleFavorite
+
+  // #docregion _FavoriteWidgetState-build
+  @override
+  Widget build(BuildContext context) {
+    return Row(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        Container(
+          padding: const EdgeInsets.all(0),
+          child: IconButton(
+            padding: const EdgeInsets.all(0),
+            alignment: Alignment.centerRight,
+            icon: (_isFavorited
+                ? const Icon(Icons.star)
+                : const Icon(Icons.star_border)),
+            color: Colors.red[500],
+            onPressed: _toggleFavorite,
+          ),
+        ),
+        SizedBox(
+          width: 18,
+          child: SizedBox(
+            child: Text('$_favoriteCount'),
+          ),
+        ),
+      ],
+    );
+  }
+// #docregion _FavoriteWidgetState-fields
+}
diff --git a/examples/testing/code_debugging/.gitignore b/examples/testing/code_debugging/.gitignore
new file mode 100644
index 0000000000..24476c5d1e
--- /dev/null
+++ b/examples/testing/code_debugging/.gitignore
@@ -0,0 +1,44 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release
diff --git a/examples/testing/code_debugging/.metadata b/examples/testing/code_debugging/.metadata
new file mode 100644
index 0000000000..3e891f0a0f
--- /dev/null
+++ b/examples/testing/code_debugging/.metadata
@@ -0,0 +1,30 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: "367f9ea16bfae1ca451b9cc27c1366870b187ae2"
+  channel: "stable"
+
+project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: 367f9ea16bfae1ca451b9cc27c1366870b187ae2
+      base_revision: 367f9ea16bfae1ca451b9cc27c1366870b187ae2
+    - platform: macos
+      create_revision: 367f9ea16bfae1ca451b9cc27c1366870b187ae2
+      base_revision: 367f9ea16bfae1ca451b9cc27c1366870b187ae2
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'
diff --git a/examples/testing/code_debugging/README.md b/examples/testing/code_debugging/README.md
new file mode 100644
index 0000000000..36b54107bd
--- /dev/null
+++ b/examples/testing/code_debugging/README.md
@@ -0,0 +1,16 @@
+# code_debugging
+
+A new Flutter project.
+
+## Getting Started
+
+This project is a starting point for a Flutter application.
+
+A few resources to get you started if this is your first Flutter project:
+
+- [Lab: Write your first Flutter app](https://docs.flutter.dev/get-started/codelab)
+- [Cookbook: Useful Flutter samples](https://docs.flutter.dev/cookbook)
+
+For help getting started with Flutter development, view the
+[online documentation](https://docs.flutter.dev/), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.
diff --git a/examples/testing/code_debugging/lib/dump_app.dart b/examples/testing/code_debugging/lib/dump_app.dart
index 16ce0360d1..53dd4dd290 100644
--- a/examples/testing/code_debugging/lib/dump_app.dart
+++ b/examples/testing/code_debugging/lib/dump_app.dart
@@ -19,7 +19,7 @@ class AppHome extends StatelessWidget {
           onPressed: () {
             debugDumpApp();
           },
-          child: const Text('Dump App'),
+          child: const Text('Dump Widget Tree'),
         ),
       ),
     );
diff --git a/examples/testing/code_debugging/lib/dump_focus_tree.dart b/examples/testing/code_debugging/lib/dump_focus_tree.dart
new file mode 100644
index 0000000000..b382cec0e9
--- /dev/null
+++ b/examples/testing/code_debugging/lib/dump_focus_tree.dart
@@ -0,0 +1,27 @@
+import 'package:flutter/material.dart';
+
+void main() {
+  runApp(
+    const MaterialApp(
+      home: AppHome(),
+    ),
+  );
+}
+
+class AppHome extends StatelessWidget {
+  const AppHome({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Material(
+      child: Center(
+        child: TextButton(
+          onPressed: () {
+            debugDumpFocusTree();
+          },
+          child: const Text('Dump Focus Tree'),
+        ),
+      ),
+    );
+  }
+}
diff --git a/examples/testing/code_debugging/lib/dump_layer_tree.dart b/examples/testing/code_debugging/lib/dump_layer_tree.dart
new file mode 100644
index 0000000000..e21d0efe78
--- /dev/null
+++ b/examples/testing/code_debugging/lib/dump_layer_tree.dart
@@ -0,0 +1,27 @@
+import 'package:flutter/material.dart';
+
+void main() {
+  runApp(
+    const MaterialApp(
+      home: AppHome(),
+    ),
+  );
+}
+
+class AppHome extends StatelessWidget {
+  const AppHome({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Material(
+      child: Center(
+        child: TextButton(
+          onPressed: () {
+            debugDumpLayerTree();
+          },
+          child: const Text('Dump Layer Tree'),
+        ),
+      ),
+    );
+  }
+}
diff --git a/examples/testing/code_debugging/lib/dump_render_tree.dart b/examples/testing/code_debugging/lib/dump_render_tree.dart
new file mode 100644
index 0000000000..c928fffd8a
--- /dev/null
+++ b/examples/testing/code_debugging/lib/dump_render_tree.dart
@@ -0,0 +1,27 @@
+import 'package:flutter/material.dart';
+
+void main() {
+  runApp(
+    const MaterialApp(
+      home: AppHome(),
+    ),
+  );
+}
+
+class AppHome extends StatelessWidget {
+  const AppHome({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Material(
+      child: Center(
+        child: TextButton(
+          onPressed: () {
+            debugDumpRenderTree();
+          },
+          child: const Text('Dump Render Tree'),
+        ),
+      ),
+    );
+  }
+}
diff --git a/examples/testing/code_debugging/lib/dump_semantic_tree.dart b/examples/testing/code_debugging/lib/dump_semantic_tree.dart
new file mode 100644
index 0000000000..adc00cb38f
--- /dev/null
+++ b/examples/testing/code_debugging/lib/dump_semantic_tree.dart
@@ -0,0 +1,36 @@
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart';
+
+void main() {
+  runApp(
+    const MaterialApp(
+      home: AppHome(),
+    ),
+  );
+}
+
+class AppHome extends StatelessWidget {
+  const AppHome({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Material(
+      child: Center(
+        child: Semantics(
+          button: true,
+          enabled: true,
+          label: 'Clickable text here!',
+          child: GestureDetector(
+              onTap: () {
+                debugDumpSemanticsTree();
+                if (kDebugMode) {
+                  print('Clicked!');
+                }
+              },
+              child: const Text('Click Me!', style: TextStyle(fontSize: 56))),
+        ),
+      ),
+    );
+  }
+}
diff --git a/examples/testing/code_debugging/macos/.gitignore b/examples/testing/code_debugging/macos/.gitignore
new file mode 100644
index 0000000000..746adbb6b9
--- /dev/null
+++ b/examples/testing/code_debugging/macos/.gitignore
@@ -0,0 +1,7 @@
+# Flutter-related
+**/Flutter/ephemeral/
+**/Pods/
+
+# Xcode-related
+**/dgph
+**/xcuserdata/
diff --git a/examples/testing/code_debugging/macos/Podfile b/examples/testing/code_debugging/macos/Podfile
new file mode 100644
index 0000000000..c795730db8
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Podfile
@@ -0,0 +1,43 @@
+platform :osx, '10.14'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'ephemeral', 'Flutter-Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure \"flutter pub get\" is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Flutter-Generated.xcconfig, then run \"flutter pub get\""
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_macos_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  flutter_install_all_macos_pods File.dirname(File.realpath(__FILE__))
+  target 'RunnerTests' do
+    inherit! :search_paths
+  end
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_macos_build_settings(target)
+  end
+end
diff --git a/examples/testing/code_debugging/macos/Podfile.lock b/examples/testing/code_debugging/macos/Podfile.lock
new file mode 100644
index 0000000000..79862f06ab
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Podfile.lock
@@ -0,0 +1,16 @@
+PODS:
+  - FlutterMacOS (1.0.0)
+
+DEPENDENCIES:
+  - FlutterMacOS (from `Flutter/ephemeral`)
+
+EXTERNAL SOURCES:
+  FlutterMacOS:
+    :path: Flutter/ephemeral
+
+SPEC CHECKSUMS:
+  FlutterMacOS: 8f6f14fa908a6fb3fba0cd85dbd81ec4b251fb24
+
+PODFILE CHECKSUM: 236401fc2c932af29a9fcf0e97baeeb2d750d367
+
+COCOAPODS: 1.12.1
diff --git a/examples/testing/code_debugging/macos/Runner.xcodeproj/project.pbxproj b/examples/testing/code_debugging/macos/Runner.xcodeproj/project.pbxproj
new file mode 100644
index 0000000000..783ff5eafa
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner.xcodeproj/project.pbxproj
@@ -0,0 +1,773 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 54;
+	objects = {
+
+/* Begin PBXAggregateTarget section */
+		33CC111A2044C6BA0003C045 /* Flutter Assemble */ = {
+			isa = PBXAggregateTarget;
+			buildConfigurationList = 33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */;
+			buildPhases = (
+				33CC111E2044C6BF0003C045 /* ShellScript */,
+			);
+			dependencies = (
+			);
+			name = "Flutter Assemble";
+			productName = FLX;
+		};
+/* End PBXAggregateTarget section */
+
+/* Begin PBXBuildFile section */
+		331C80D8294CF71000263BE5 /* RunnerTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 331C80D7294CF71000263BE5 /* RunnerTests.swift */; };
+		335BBD1B22A9A15E00E9071D /* GeneratedPluginRegistrant.swift in Sources */ = {isa = PBXBuildFile; fileRef = 335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */; };
+		33CC10F12044A3C60003C045 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC10F02044A3C60003C045 /* AppDelegate.swift */; };
+		33CC10F32044A3C60003C045 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F22044A3C60003C045 /* Assets.xcassets */; };
+		33CC10F62044A3C60003C045 /* MainMenu.xib in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F42044A3C60003C045 /* MainMenu.xib */; };
+		33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC11122044BFA00003C045 /* MainFlutterWindow.swift */; };
+		94A9543CFBFAD64C9222CDED /* Pods_RunnerTests.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = D26877640D9B19AD3A5517A7 /* Pods_RunnerTests.framework */; };
+		985A6C06E58389B46A2ED031 /* Pods_Runner.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = A2E6F9B333FEA443C305CBF0 /* Pods_Runner.framework */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXContainerItemProxy section */
+		331C80D9294CF71000263BE5 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 33CC10E52044A3C60003C045 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 33CC10EC2044A3C60003C045;
+			remoteInfo = Runner;
+		};
+		33CC111F2044C79F0003C045 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 33CC10E52044A3C60003C045 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 33CC111A2044C6BA0003C045;
+			remoteInfo = FLX;
+		};
+/* End PBXContainerItemProxy section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		33CC110E2044A8840003C045 /* Bundle Framework */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+			);
+			name = "Bundle Framework";
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+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = com.example.codeDebugging.RunnerTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/code_debugging.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/code_debugging";
+			};
+			name = Profile;
+		};
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+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CODE_SIGN_IDENTITY = "-";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 10.14;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = macosx;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+			};
+			name = Profile;
+		};
+		338D0CEA231458BD00FA5F75 /* Profile */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 33E5194F232828860026EE4D /* AppInfo.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/DebugProfile.entitlements;
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Profile;
+		};
+		338D0CEB231458BD00FA5F75 /* Profile */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Manual;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+			};
+			name = Profile;
+		};
+		33CC10F92044A3C60003C045 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CODE_SIGN_IDENTITY = "-";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 10.14;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = macosx;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		33CC10FA2044A3C60003C045 /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CODE_SIGN_IDENTITY = "-";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 10.14;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = macosx;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+			};
+			name = Release;
+		};
+		33CC10FC2044A3C60003C045 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 33E5194F232828860026EE4D /* AppInfo.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/DebugProfile.entitlements;
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Debug;
+		};
+		33CC10FD2044A3C60003C045 /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 33E5194F232828860026EE4D /* AppInfo.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/Release.entitlements;
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Release;
+		};
+		33CC111C2044C6BA0003C045 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Manual;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+			};
+			name = Debug;
+		};
+		33CC111D2044C6BA0003C045 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Automatic;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		331C80DE294CF71000263BE5 /* Build configuration list for PBXNativeTarget "RunnerTests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				331C80DB294CF71000263BE5 /* Debug */,
+				331C80DC294CF71000263BE5 /* Release */,
+				331C80DD294CF71000263BE5 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		33CC10E82044A3C60003C045 /* Build configuration list for PBXProject "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC10F92044A3C60003C045 /* Debug */,
+				33CC10FA2044A3C60003C045 /* Release */,
+				338D0CE9231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		33CC10FB2044A3C60003C045 /* Build configuration list for PBXNativeTarget "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC10FC2044A3C60003C045 /* Debug */,
+				33CC10FD2044A3C60003C045 /* Release */,
+				338D0CEA231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC111C2044C6BA0003C045 /* Debug */,
+				33CC111D2044C6BA0003C045 /* Release */,
+				338D0CEB231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 33CC10E52044A3C60003C045 /* Project object */;
+}
diff --git a/examples/testing/code_debugging/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/examples/testing/code_debugging/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000000..18d981003d
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/examples/testing/code_debugging/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/examples/testing/code_debugging/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
new file mode 100644
index 0000000000..e6f78786ae
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -0,0 +1,98 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1430"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+               BuildableName = "code_debugging.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "code_debugging.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+         <TestableReference
+            skipped = "NO"
+            parallelizable = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "331C80D4294CF70F00263BE5"
+               BuildableName = "RunnerTests.xctest"
+               BlueprintName = "RunnerTests"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "code_debugging.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "code_debugging.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/examples/testing/code_debugging/macos/Runner.xcworkspace/contents.xcworkspacedata b/examples/testing/code_debugging/macos/Runner.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000000..21a3cc14c7
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/examples/testing/code_debugging/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/examples/testing/code_debugging/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000000..18d981003d
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/examples/testing/code_debugging/macos/Runner/AppDelegate.swift b/examples/testing/code_debugging/macos/Runner/AppDelegate.swift
new file mode 100644
index 0000000000..d53ef64377
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner/AppDelegate.swift
@@ -0,0 +1,9 @@
+import Cocoa
+import FlutterMacOS
+
+@NSApplicationMain
+class AppDelegate: FlutterAppDelegate {
+  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+    return true
+  }
+}
diff --git a/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000..a2ec33f19f
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,68 @@
+{
+  "images" : [
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_16.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_64.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_128.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_1024.png",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png b/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png
new file mode 100644
index 0000000000..82b6f9d9a3
Binary files /dev/null and b/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png differ
diff --git a/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png b/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png
new file mode 100644
index 0000000000..13b35eba55
Binary files /dev/null and b/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png differ
diff --git a/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png b/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png
new file mode 100644
index 0000000000..0a3f5fa40f
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diff --git a/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png b/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png
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index 0000000000..bdb57226d5
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diff --git a/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png b/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png
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index 0000000000..f083318e09
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diff --git a/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png b/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png
new file mode 100644
index 0000000000..326c0e72c9
Binary files /dev/null and b/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png differ
diff --git a/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png b/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png
new file mode 100644
index 0000000000..2f1632cfdd
Binary files /dev/null and b/examples/testing/code_debugging/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png differ
diff --git a/examples/testing/code_debugging/macos/Runner/Base.lproj/MainMenu.xib b/examples/testing/code_debugging/macos/Runner/Base.lproj/MainMenu.xib
new file mode 100644
index 0000000000..80e867a4e0
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner/Base.lproj/MainMenu.xib
@@ -0,0 +1,343 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+    <dependencies>
+        <deployment identifier="macosx"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14490.70"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <objects>
+        <customObject id="-2" userLabel="File's Owner" customClass="NSApplication">
+            <connections>
+                <outlet property="delegate" destination="Voe-Tx-rLC" id="GzC-gU-4Uq"/>
+            </connections>
+        </customObject>
+        <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
+        <customObject id="-3" userLabel="Application" customClass="NSObject"/>
+        <customObject id="Voe-Tx-rLC" customClass="AppDelegate" customModule="Runner" customModuleProvider="target">
+            <connections>
+                <outlet property="applicationMenu" destination="uQy-DD-JDr" id="XBo-yE-nKs"/>
+                <outlet property="mainFlutterWindow" destination="QvC-M9-y7g" id="gIp-Ho-8D9"/>
+            </connections>
+        </customObject>
+        <customObject id="YLy-65-1bz" customClass="NSFontManager"/>
+        <menu title="Main Menu" systemMenu="main" id="AYu-sK-qS6">
+            <items>
+                <menuItem title="APP_NAME" id="1Xt-HY-uBw">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="APP_NAME" systemMenu="apple" id="uQy-DD-JDr">
+                        <items>
+                            <menuItem title="About APP_NAME" id="5kV-Vb-QxS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="orderFrontStandardAboutPanel:" target="-1" id="Exp-CZ-Vem"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="VOq-y0-SEH"/>
+                            <menuItem title="Preferences…" keyEquivalent="," id="BOF-NM-1cW"/>
+                            <menuItem isSeparatorItem="YES" id="wFC-TO-SCJ"/>
+                            <menuItem title="Services" id="NMo-om-nkz">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Services" systemMenu="services" id="hz9-B4-Xy5"/>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="4je-JR-u6R"/>
+                            <menuItem title="Hide APP_NAME" keyEquivalent="h" id="Olw-nP-bQN">
+                                <connections>
+                                    <action selector="hide:" target="-1" id="PnN-Uc-m68"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Hide Others" keyEquivalent="h" id="Vdr-fp-XzO">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="hideOtherApplications:" target="-1" id="VT4-aY-XCT"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Show All" id="Kd2-mp-pUS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="unhideAllApplications:" target="-1" id="Dhg-Le-xox"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="kCx-OE-vgT"/>
+                            <menuItem title="Quit APP_NAME" keyEquivalent="q" id="4sb-4s-VLi">
+                                <connections>
+                                    <action selector="terminate:" target="-1" id="Te7-pn-YzF"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Edit" id="5QF-Oa-p0T">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Edit" id="W48-6f-4Dl">
+                        <items>
+                            <menuItem title="Undo" keyEquivalent="z" id="dRJ-4n-Yzg">
+                                <connections>
+                                    <action selector="undo:" target="-1" id="M6e-cu-g7V"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Redo" keyEquivalent="Z" id="6dh-zS-Vam">
+                                <connections>
+                                    <action selector="redo:" target="-1" id="oIA-Rs-6OD"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="WRV-NI-Exz"/>
+                            <menuItem title="Cut" keyEquivalent="x" id="uRl-iY-unG">
+                                <connections>
+                                    <action selector="cut:" target="-1" id="YJe-68-I9s"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Copy" keyEquivalent="c" id="x3v-GG-iWU">
+                                <connections>
+                                    <action selector="copy:" target="-1" id="G1f-GL-Joy"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste" keyEquivalent="v" id="gVA-U4-sdL">
+                                <connections>
+                                    <action selector="paste:" target="-1" id="UvS-8e-Qdg"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste and Match Style" keyEquivalent="V" id="WeT-3V-zwk">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="pasteAsPlainText:" target="-1" id="cEh-KX-wJQ"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Delete" id="pa3-QI-u2k">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="delete:" target="-1" id="0Mk-Ml-PaM"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Select All" keyEquivalent="a" id="Ruw-6m-B2m">
+                                <connections>
+                                    <action selector="selectAll:" target="-1" id="VNm-Mi-diN"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="uyl-h8-XO2"/>
+                            <menuItem title="Find" id="4EN-yA-p0u">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Find" id="1b7-l0-nxx">
+                                    <items>
+                                        <menuItem title="Find…" tag="1" keyEquivalent="f" id="Xz5-n4-O0W">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="cD7-Qs-BN4"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find and Replace…" tag="12" keyEquivalent="f" id="YEy-JH-Tfz">
+                                            <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="WD3-Gg-5AJ"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Next" tag="2" keyEquivalent="g" id="q09-fT-Sye">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="NDo-RZ-v9R"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Previous" tag="3" keyEquivalent="G" id="OwM-mh-QMV">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="HOh-sY-3ay"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Use Selection for Find" tag="7" keyEquivalent="e" id="buJ-ug-pKt">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="U76-nv-p5D"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Jump to Selection" keyEquivalent="j" id="S0p-oC-mLd">
+                                            <connections>
+                                                <action selector="centerSelectionInVisibleArea:" target="-1" id="IOG-6D-g5B"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Spelling and Grammar" id="Dv1-io-Yv7">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Spelling" id="3IN-sU-3Bg">
+                                    <items>
+                                        <menuItem title="Show Spelling and Grammar" keyEquivalent=":" id="HFo-cy-zxI">
+                                            <connections>
+                                                <action selector="showGuessPanel:" target="-1" id="vFj-Ks-hy3"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Document Now" keyEquivalent=";" id="hz2-CU-CR7">
+                                            <connections>
+                                                <action selector="checkSpelling:" target="-1" id="fz7-VC-reM"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="bNw-od-mp5"/>
+                                        <menuItem title="Check Spelling While Typing" id="rbD-Rh-wIN">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleContinuousSpellChecking:" target="-1" id="7w6-Qz-0kB"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Grammar With Spelling" id="mK6-2p-4JG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleGrammarChecking:" target="-1" id="muD-Qn-j4w"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Correct Spelling Automatically" id="78Y-hA-62v">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticSpellingCorrection:" target="-1" id="2lM-Qi-WAP"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Substitutions" id="9ic-FL-obx">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Substitutions" id="FeM-D8-WVr">
+                                    <items>
+                                        <menuItem title="Show Substitutions" id="z6F-FW-3nz">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="orderFrontSubstitutionsPanel:" target="-1" id="oku-mr-iSq"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="gPx-C9-uUO"/>
+                                        <menuItem title="Smart Copy/Paste" id="9yt-4B-nSM">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleSmartInsertDelete:" target="-1" id="3IJ-Se-DZD"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Quotes" id="hQb-2v-fYv">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticQuoteSubstitution:" target="-1" id="ptq-xd-QOA"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Dashes" id="rgM-f4-ycn">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDashSubstitution:" target="-1" id="oCt-pO-9gS"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Links" id="cwL-P1-jid">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticLinkDetection:" target="-1" id="Gip-E3-Fov"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Data Detectors" id="tRr-pd-1PS">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDataDetection:" target="-1" id="R1I-Nq-Kbl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Text Replacement" id="HFQ-gK-NFA">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticTextReplacement:" target="-1" id="DvP-Fe-Py6"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Transformations" id="2oI-Rn-ZJC">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Transformations" id="c8a-y6-VQd">
+                                    <items>
+                                        <menuItem title="Make Upper Case" id="vmV-6d-7jI">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="uppercaseWord:" target="-1" id="sPh-Tk-edu"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Make Lower Case" id="d9M-CD-aMd">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="lowercaseWord:" target="-1" id="iUZ-b5-hil"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Capitalize" id="UEZ-Bs-lqG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="capitalizeWord:" target="-1" id="26H-TL-nsh"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Speech" id="xrE-MZ-jX0">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Speech" id="3rS-ZA-NoH">
+                                    <items>
+                                        <menuItem title="Start Speaking" id="Ynk-f8-cLZ">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="startSpeaking:" target="-1" id="654-Ng-kyl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Stop Speaking" id="Oyz-dy-DGm">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="stopSpeaking:" target="-1" id="dX8-6p-jy9"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="View" id="H8h-7b-M4v">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="View" id="HyV-fh-RgO">
+                        <items>
+                            <menuItem title="Enter Full Screen" keyEquivalent="f" id="4J7-dP-txa">
+                                <modifierMask key="keyEquivalentModifierMask" control="YES" command="YES"/>
+                                <connections>
+                                    <action selector="toggleFullScreen:" target="-1" id="dU3-MA-1Rq"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Window" id="aUF-d1-5bR">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Window" systemMenu="window" id="Td7-aD-5lo">
+                        <items>
+                            <menuItem title="Minimize" keyEquivalent="m" id="OY7-WF-poV">
+                                <connections>
+                                    <action selector="performMiniaturize:" target="-1" id="VwT-WD-YPe"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Zoom" id="R4o-n2-Eq4">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="performZoom:" target="-1" id="DIl-cC-cCs"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="eu3-7i-yIM"/>
+                            <menuItem title="Bring All to Front" id="LE2-aR-0XJ">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="arrangeInFront:" target="-1" id="DRN-fu-gQh"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Help" id="EPT-qC-fAb">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Help" systemMenu="help" id="rJ0-wn-3NY"/>
+                </menuItem>
+            </items>
+            <point key="canvasLocation" x="142" y="-258"/>
+        </menu>
+        <window title="APP_NAME" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" releasedWhenClosed="NO" animationBehavior="default" id="QvC-M9-y7g" customClass="MainFlutterWindow" customModule="Runner" customModuleProvider="target">
+            <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES"/>
+            <rect key="contentRect" x="335" y="390" width="800" height="600"/>
+            <rect key="screenRect" x="0.0" y="0.0" width="2560" height="1577"/>
+            <view key="contentView" wantsLayer="YES" id="EiT-Mj-1SZ">
+                <rect key="frame" x="0.0" y="0.0" width="800" height="600"/>
+                <autoresizingMask key="autoresizingMask"/>
+            </view>
+        </window>
+    </objects>
+</document>
diff --git a/examples/testing/code_debugging/macos/Runner/Configs/AppInfo.xcconfig b/examples/testing/code_debugging/macos/Runner/Configs/AppInfo.xcconfig
new file mode 100644
index 0000000000..69c4382656
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner/Configs/AppInfo.xcconfig
@@ -0,0 +1,14 @@
+// Application-level settings for the Runner target.
+//
+// This may be replaced with something auto-generated from metadata (e.g., pubspec.yaml) in the
+// future. If not, the values below would default to using the project name when this becomes a
+// 'flutter create' template.
+
+// The application's name. By default this is also the title of the Flutter window.
+PRODUCT_NAME = code_debugging
+
+// The application's bundle identifier
+PRODUCT_BUNDLE_IDENTIFIER = com.example.codeDebugging
+
+// The copyright displayed in application information
+PRODUCT_COPYRIGHT = Copyright © 2023 com.example. All rights reserved.
diff --git a/examples/testing/code_debugging/macos/Runner/Configs/Debug.xcconfig b/examples/testing/code_debugging/macos/Runner/Configs/Debug.xcconfig
new file mode 100644
index 0000000000..36b0fd9464
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner/Configs/Debug.xcconfig
@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Debug.xcconfig"
+#include "Warnings.xcconfig"
diff --git a/examples/testing/code_debugging/macos/Runner/Configs/Release.xcconfig b/examples/testing/code_debugging/macos/Runner/Configs/Release.xcconfig
new file mode 100644
index 0000000000..dff4f49561
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner/Configs/Release.xcconfig
@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Release.xcconfig"
+#include "Warnings.xcconfig"
diff --git a/examples/testing/code_debugging/macos/Runner/Configs/Warnings.xcconfig b/examples/testing/code_debugging/macos/Runner/Configs/Warnings.xcconfig
new file mode 100644
index 0000000000..42bcbf4780
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner/Configs/Warnings.xcconfig
@@ -0,0 +1,13 @@
+WARNING_CFLAGS = -Wall -Wconditional-uninitialized -Wnullable-to-nonnull-conversion -Wmissing-method-return-type -Woverlength-strings
+GCC_WARN_UNDECLARED_SELECTOR = YES
+CLANG_UNDEFINED_BEHAVIOR_SANITIZER_NULLABILITY = YES
+CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE
+CLANG_WARN__DUPLICATE_METHOD_MATCH = YES
+CLANG_WARN_PRAGMA_PACK = YES
+CLANG_WARN_STRICT_PROTOTYPES = YES
+CLANG_WARN_COMMA = YES
+GCC_WARN_STRICT_SELECTOR_MATCH = YES
+CLANG_WARN_OBJC_REPEATED_USE_OF_WEAK = YES
+CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES
+GCC_WARN_SHADOW = YES
+CLANG_WARN_UNREACHABLE_CODE = YES
diff --git a/examples/testing/code_debugging/macos/Runner/DebugProfile.entitlements b/examples/testing/code_debugging/macos/Runner/DebugProfile.entitlements
new file mode 100644
index 0000000000..dddb8a30c8
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner/DebugProfile.entitlements
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+	<key>com.apple.security.cs.allow-jit</key>
+	<true/>
+	<key>com.apple.security.network.server</key>
+	<true/>
+</dict>
+</plist>
diff --git a/examples/testing/code_debugging/macos/Runner/Info.plist b/examples/testing/code_debugging/macos/Runner/Info.plist
new file mode 100644
index 0000000000..4789daa6a4
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner/Info.plist
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>$(PRODUCT_COPYRIGHT)</string>
+	<key>NSMainNibFile</key>
+	<string>MainMenu</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>
diff --git a/examples/testing/code_debugging/macos/Runner/MainFlutterWindow.swift b/examples/testing/code_debugging/macos/Runner/MainFlutterWindow.swift
new file mode 100644
index 0000000000..3cc05eb234
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner/MainFlutterWindow.swift
@@ -0,0 +1,15 @@
+import Cocoa
+import FlutterMacOS
+
+class MainFlutterWindow: NSWindow {
+  override func awakeFromNib() {
+    let flutterViewController = FlutterViewController()
+    let windowFrame = self.frame
+    self.contentViewController = flutterViewController
+    self.setFrame(windowFrame, display: true)
+
+    RegisterGeneratedPlugins(registry: flutterViewController)
+
+    super.awakeFromNib()
+  }
+}
diff --git a/examples/testing/code_debugging/macos/Runner/Release.entitlements b/examples/testing/code_debugging/macos/Runner/Release.entitlements
new file mode 100644
index 0000000000..852fa1a472
--- /dev/null
+++ b/examples/testing/code_debugging/macos/Runner/Release.entitlements
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+</dict>
+</plist>
diff --git a/examples/testing/code_debugging/macos/RunnerTests/RunnerTests.swift b/examples/testing/code_debugging/macos/RunnerTests/RunnerTests.swift
new file mode 100644
index 0000000000..5418c9f539
--- /dev/null
+++ b/examples/testing/code_debugging/macos/RunnerTests/RunnerTests.swift
@@ -0,0 +1,12 @@
+import FlutterMacOS
+import Cocoa
+import XCTest
+
+class RunnerTests: XCTestCase {
+
+  func testExample() {
+    // If you add code to the Runner application, consider adding tests here.
+    // See https://developer.apple.com/documentation/xctest for more information about using XCTest.
+  }
+
+}
diff --git a/examples/testing/integration_tests/how_to/android/local.properties b/examples/testing/integration_tests/how_to/android/local.properties
index 780e33084d..6ca6dda20e 100644
--- a/examples/testing/integration_tests/how_to/android/local.properties
+++ b/examples/testing/integration_tests/how_to/android/local.properties
@@ -1,2 +1,2 @@
-sdk.dir=/Users/brettmorgan/Library/Android/sdk
-flutter.sdk=/Users/brettmorgan/flutter
\ No newline at end of file
+sdk.dir=/Users/atsansone/Library/Android/sdk
+flutter.sdk=/Users/atsansone/Projects/flutter
\ No newline at end of file
diff --git a/src/_data/catalog/widgets.json b/src/_data/catalog/widgets.json
index 8747cfa111..b1a5a3ac57 100644
--- a/src/_data/catalog/widgets.json
+++ b/src/_data/catalog/widgets.json
@@ -312,7 +312,7 @@
   },
   {
     "name": "Checkbox",
-    "description": "Form control that app users can select or clear to select one or more options from a set. Select the option to enable it or clear it to disable it.",
+    "description": "Form control that app users can set or clear to select one or more options from a set.",
     "categories": [],
     "subcategories": [
       "Selection",
@@ -923,7 +923,7 @@
   },
   {
     "name": "FloatingActionButton",
-    "description": "Clickable block that triggers a key action. This block contains an icon and floats in the app interface to keep the key action within reach.",
+    "description": "Clickable block containing an icon that keeps a key action always in reach.",
     "categories": [],
     "subcategories": [
       "Actions",
@@ -1268,7 +1268,7 @@
   },
   {
     "name": "NavigationDrawer",
-    "description": "Container that slides from the leading edge of the app to navigate to other sections in an app.  The leading edge falls on the left side for left-to-right languages.",
+    "description": "Container that slides from the leading edge of the app to navigate to other sections in an app.",
     "categories": [],
     "subcategories": [
       "Navigation"
@@ -1279,7 +1279,7 @@
   },
   {
     "name": "Navigation rail",
-    "description": "Persistent container on the leading edge of tablet and desktop screens to navigate to parts of an app. The leading edge falls on the left side for left-to-right languages.",
+    "description": "Persistent container on the leading edge of tablet and desktop screens to navigate to parts of an app.",
     "categories": [],
     "subcategories": [
       "Navigation"
@@ -1412,7 +1412,7 @@
   },
   {
     "name": "Radio",
-    "description": "Form control that app users can select or clear to select only one option from a set. Select the option to enable it or clear it to disable it.",
+    "description": "Form control that app users can set or clear to select only one option from a set.",
     "categories": [],
     "subcategories": [
       "Selection",
diff --git a/src/_data/sidenav.yml b/src/_data/sidenav.yml
index 6396c91933..2aa3330da2 100644
--- a/src/_data/sidenav.yml
+++ b/src/_data/sidenav.yml
@@ -1,14 +1,12 @@
 - title: 开始使用 Flutter
   children:
-    - title: 1. 安装和环境配置
+    - title: 安装和环境配置
       permalink: /docs/get-started/install
-    - title: 2. 编辑工具设定
-      permalink: /docs/get-started/editor
-    - title: 3. 开发体验初探
+    - title: 开发体验初探
       permalink: /docs/get-started/test-drive
-    - title: 4. 编写第一个 Flutter 应用
+    - title: 编写第一个 Flutter 应用
       permalink: /docs/get-started/codelab
-    - title: 5. 了解更多
+    - title: 了解更多
       permalink: /docs/get-started/learn-more
     - divider
     - title: 拥有其他平台开发经验？
diff --git a/src/_includes/banner.html b/src/_includes/banner.html
index de58cc771f..96dab12c92 100644
--- a/src/_includes/banner.html
+++ b/src/_includes/banner.html
@@ -5,7 +5,7 @@
   Flutter 3.16 已发布！
   <!-- SuperDash is the new Flutter + Flame game and example.<br> Learn
   <a href="{{site.flutter-medium}}/how-we-built-the-new-super-dash-demo-in-flutter-and-flame-in-just-six-weeks-9c7aa2a5ad31">how SuperDash
-  was built in 6 days</a> and play the game on iOS, Android, or
+  was built in under 6 weeks</a> and play the game on iOS, Android, or
   <a href="https://superdash.flutter.dev/">web</a>! -->
 </div>
 
diff --git a/src/_includes/docs/admonitions/tip-hashCode-tree.md b/src/_includes/docs/admonitions/tip-hashCode-tree.md
new file mode 100644
index 0000000000..129c063f39
--- /dev/null
+++ b/src/_includes/docs/admonitions/tip-hashCode-tree.md
@@ -0,0 +1,7 @@
+{{site.alert.tip}}
+  Each render object in any tree includes the first five
+  hexadecimal digits of its [`hashCode`][].
+  This hash serves as a unique identifier for that render object.
+{{site.alert.end}}
+
+[`hashCode`]: {{site.api}}/flutter/rendering/TextSelectionPoint/hashCode.html
\ No newline at end of file
diff --git a/src/_includes/docs/app-figure.liquid b/src/_includes/docs/app-figure.liquid
new file mode 100644
index 0000000000..dcbe8b8a06
--- /dev/null
+++ b/src/_includes/docs/app-figure.liquid
@@ -0,0 +1,43 @@
+{% assign platform = include.platform -%}
+{% assign caption = include.caption | default: platform -%}
+{% assign alt = include.alt | default: caption -%}
+{% assign image = include.image -%}
+{% if include.width -%}
+{% assign width = 'width: ' | append: include.width | append: ';' -%}
+{% else -%}
+{% assign width = '' -%}
+{% endif -%}
+{% if include.height -%}
+{% assign height = 'height: ' | append: include.height | append: ';' -%}
+{% else -%}
+{% assign height = '' -%}
+{% endif -%}
+
+{% comment %}
+NOTE possibly sneaky introspection, feeling like this should be removed
+NOTE(rearch) We second that, never a good idea.
+{% endcomment %}
+{% if include.path-prefix -%}
+  {% assign path = include.path-prefix | append: '/' -%}
+{% else -%}
+  {% assign path = '' -%}
+{% endif -%}
+
+{% if platform -%}
+  {% assign alt = alt | append: ' on ' | append: platform -%}
+  {% assign platform_in_lowercase = platform | downcase -%}
+  {% assign path = path | append: platform_in_lowercase | append: '/'  -%}
+{% endif -%}
+
+<figure class="site-figure {{include.class}}">
+  <div class="site-figure-container-lg">
+    <img src='/assets/images/docs/{{path}}{{include.image}}'
+         class='{{include.img-class}}'
+         alt='{{alt}}'
+         style='{{width}} {{height}}'
+         >
+    {% if caption -%}
+      <figcaption class="figure-caption">{{caption}}</figcaption>
+    {% endif -%}
+  </div>
+</figure>
diff --git a/src/_includes/docs/app-figure.md b/src/_includes/docs/app-figure.md
index e25120f00c..75297475b6 100644
--- a/src/_includes/docs/app-figure.md
+++ b/src/_includes/docs/app-figure.md
@@ -1,9 +1,19 @@
 {% assign alt = include.alt | default: include.caption -%}
 {% assign caption = include.caption | default: include.platform -%}
+{% if include.width -%}
+{% assign width = 'width: ' | append: include.width | append: ';' -%}
+{% else -%}
+{% assign width = '' -%}
+{% endif -%}
+{% if include.height -%}
+{% assign height = 'height: ' | append: include.height | append: ';' -%}
+{% else -%}
+{% assign height = '' -%}
+{% endif -%}
 
 {% comment %}
 NOTE possibly sneaky introspection, feeling like this should be removed
-NOTE(rearch) We second that, never a good idea. 
+NOTE(rearch) We second that, never a good idea.
 {% endcomment %}
 {% if include.path-prefix -%}
   {% assign path = include.path-prefix | append: '/' -%}
@@ -19,9 +29,11 @@ NOTE(rearch) We second that, never a good idea.
 
 <figure class="site-figure {{include.class}}">
   <div class="site-figure-container">
-    <img src='{{ site.url }}/assets/images/docs/{{path}}{{include.image}}' 
-         class='{{include.img-class}}' 
-         alt='{{alt}}'>
+    <img src='{{ site.url }}/assets/images/docs/{{path}}{{include.image}}'
+         class='{{include.img-class}}'
+         alt='{{alt}}'
+         style='{{width}} {{height}}'
+         >
     {% if caption -%}
       <figcaption class="figure-caption">{{caption}}</figcaption>
     {% endif -%}
diff --git a/src/_includes/docs/bili_shims.liquid b/src/_includes/docs/bili_shims.liquid
new file mode 100644
index 0000000000..73207b2e46
--- /dev/null
+++ b/src/_includes/docs/bili_shims.liquid
@@ -0,0 +1,4 @@
+{% assign bili-set = 'frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen loading="lazy"' %}
+{% assign bili-set-short = 'frameborder="0" allowfullscreen loading="lazy"' %}
+{% assign bili-embed = '//player.bilibili.com/player.html' %}
+{% assign bili-video = 'https://www.bilibili.com/video' %}
\ No newline at end of file
diff --git a/src/_includes/docs/debug/debug-flow-android.md b/src/_includes/docs/debug/debug-flow-android.md
index aac2003e27..1d8ded8a97 100644
--- a/src/_includes/docs/debug/debug-flow-android.md
+++ b/src/_includes/docs/debug/debug-flow-android.md
@@ -5,7 +5,7 @@
 {{site.alert.end}}
 
 [GNU Project Debugger]: https://www.sourceware.org/gdb/
-[`flutter_gdb`]: https://github.com/flutter/engine/blob/main/sky/tools/flutter_gdb
+[`flutter_gdb`]: {{site.repo.engine}}/blob/main/sky/tools/flutter_gdb
 
 #### Build the Android version of the Flutter app in the Terminal
 {:.no_toc}
@@ -14,7 +14,7 @@ To generate the needed Android platform dependencies,
 run the `flutter build` command.
 
 ```terminal
-$ flutter build appbundle --debug
+flutter build appbundle --debug
 ```
 
 ```terminal
@@ -49,8 +49,6 @@ If you use VS Code to debug most of your code, start with this section.
 
 {% include docs/debug/debug-android-attach-process.md %}
 
-[`url_launcher`]: {{site.url}}/examples/testing/oem_debugging
-
 </div>
 
 <div class="tab-pane" id="from-android-studio-to-vscode" role="tabpanel" aria-labelledby="from-android-studio-to-vscode-tab" markdown="1">
diff --git a/src/_includes/docs/debug/debug-flow-ios.md b/src/_includes/docs/debug/debug-flow-ios.md
index 245e7f29b3..7ce0f18363 100644
--- a/src/_includes/docs/debug/debug-flow-ios.md
+++ b/src/_includes/docs/debug/debug-flow-ios.md
@@ -5,7 +5,7 @@ To generate the needed iOS platform dependencies,
 run the `flutter build` command.
 
 ```terminal
-$ flutter build ios --config-only --no-codesign --debug
+flutter build ios --config-only --no-codesign --debug
 ```
 
 ```terminal
diff --git a/src/_includes/docs/debug/debug-flow-macos.md b/src/_includes/docs/debug/debug-flow-macos.md
index 32911439f5..aa4995a428 100644
--- a/src/_includes/docs/debug/debug-flow-macos.md
+++ b/src/_includes/docs/debug/debug-flow-macos.md
@@ -5,7 +5,7 @@ To generate the needed macOS platform dependencies,
 run the `flutter build` command.
 
 ```terminal
-$ flutter build macos --debug
+flutter build macos --debug
 ```
 
 ```terminal
diff --git a/src/_includes/docs/help-link.md b/src/_includes/docs/help-link.md
new file mode 100644
index 0000000000..1b564b1c43
--- /dev/null
+++ b/src/_includes/docs/help-link.md
@@ -0,0 +1,6 @@
+<p class="install-help">
+    <a id='{{ include.location }}' href='{{site.url}}/get-started/install/help{{ include.section }}'>
+    <span class='material-icons'>help</span>
+    <span>帮助</span>
+    </a>
+</p>
diff --git a/src/_includes/docs/install/admonitions/install-paths.md b/src/_includes/docs/install/admonitions/install-paths.md
new file mode 100644
index 0000000000..51ab79ce17
--- /dev/null
+++ b/src/_includes/docs/install/admonitions/install-paths.md
@@ -0,0 +1,21 @@
+
+   {{site.alert.warning}}
+
+      Don't install Flutter to a directory or path that meets
+      one or both of the following conditions:
+
+      不要将 Flutter 安装到以下情况的目录或路径中：
+
+      * The path contains special characters or spaces.
+
+        路径包含特殊字符或空格。
+
+      * The path requires elevated privileges.
+
+        路径需要较高的权限。
+
+      As an example, `C:\Program Files\` fails both conditions.
+
+      例如，`C:\Program Files\` 路径就是以上情况。
+
+   {{site.alert.end}}
diff --git a/src/_includes/docs/install/compiler/android.md b/src/_includes/docs/install/compiler/android.md
new file mode 100644
index 0000000000..6f58d63376
--- /dev/null
+++ b/src/_includes/docs/install/compiler/android.md
@@ -0,0 +1,209 @@
+## Configure Android development
+
+### Configure the Android toolchain in Android Studio
+
+{% include docs/help-link.md location='android-studio' section='#android-setup' %}
+
+{% comment %} Nav tabs {% endcomment -%}
+<ul class="nav nav-tabs" id="android-studio-start" role="tablist">
+    <li class="nav-item">
+        <a class="nav-link active" id="first-start-tab" href="#first-start" role="tab" aria-controls="first-start" aria-selected="true">First time using Android Studio</a>
+    </li>
+    <li class="nav-item">
+        <a class="nav-link" id="later-start-tab" href="#later-start" role="tab" aria-controls="later-start" aria-selected="false">Current Android Studio User</a>
+    </li>
+</ul>
+
+{% comment %} Tab panes {% endcomment -%}
+<div class="tab-content">
+
+<div class="tab-pane active" id="first-start" role="tabpanel" aria-labelledby="first-start-tab" markdown="1">
+
+1. Start **Android Studio**.
+
+   The **Welcome to Android Studio** dialog displays.
+
+1. Follow the **Android Studio Setup Wizard**.
+
+1. Install the following components:
+
+   * **Android SDK Platform, API {{ site.appnow.android_sdk }}**
+   * **Android SDK Command-line Tools**
+   * **Android SDK Build-Tools**
+   * **Android SDK Platform-Tools**
+   * **Android Emulator**
+
+</div>
+
+<div class="tab-pane" id="later-start" role="tabpanel" aria-labelledby="later-start-tab" markdown="1">
+
+1. Start **Android Studio**.
+
+1. Go to the **Settings** dialog to view the **SDK Manager**.
+
+   1. If you have a project open,
+      go to **Tools** <span aria-label="and then">></span> **SDK Manager**.
+
+   1. If the **Welcome to Android Studio** dialog displays,
+      click the **More Options** icon that follows the **Open** button
+      and click **SDK Manager** from the dropdown menu.
+
+1. Click **SDK Platforms**.
+
+1. Verify that **Android API {{ site.appnow.android_sdk }}** has been selected.
+
+   If the **Status** column displays **Update available** or **Not installed**:
+
+   {:type="a"}
+   1. Select **Android API {{ site.appnow.android_sdk }}**.
+
+   1. Click **Apply**.
+
+   1. When the **Confirm Change** dialog displays, click **OK**.
+
+      The **SDK Quickfix Installation** dialog displays with a
+      completion meter.
+
+   1. When the install finishes, click **Finish**.
+
+      After you installed the latest SDK,
+      the **Status** column might display **Update available**.
+      This means some additional system images might not be installed.
+      You can ignore this and continue.
+
+1. Click **SDK Tools**.
+
+1. Verify that the following SDK Tools have been selected:
+
+   * **Android SDK Command-line Tools**
+   * **Android SDK Build-Tools**
+   * **Android SDK Platform-Tools**
+   * **Android Emulator**
+
+1. If the **Status** column for any of the preceding tools displays
+   **Update available** or **Not installed**:
+
+   {:type="a"}
+   1. Select the needed tools.
+
+   1. Click **Apply**.
+
+   1. When the **Confirm Change** dialog displays, click **OK**.
+
+      The **SDK Quickfix Installation** dialog displays with a
+      completion meter.
+
+   1. When the install finishes, click **Finish**.
+
+</div>
+</div>
+{% comment %} End: Tab panes. {% endcomment -%}
+
+### Configure your target Android device
+
+{% comment %} Nav tabs {% endcomment -%}
+<ul class="nav nav-tabs" id="android-devices-vp" role="tablist">
+    <li class="nav-item">
+        <a class="nav-link active" id="virtual-tab" href="#virtual" role="tab" aria-controls="virtual" aria-selected="true">Virtual Device</a>
+    </li>
+    <li class="nav-item">
+        <a class="nav-link" id="physical-tab" href="#physical" role="tab" aria-controls="physical" aria-selected="false">Physical Device</a>
+    </li>
+</ul>
+
+{% comment %} Tab panes {% endcomment -%}
+<div class="tab-content">
+
+<div class="tab-pane active" id="virtual" role="tabpanel" aria-labelledby="virtual-tab" markdown="1">
+
+{% include docs/install/devices/android-emulator.md os=include.os %}
+
+</div>
+
+<div class="tab-pane" id="physical" role="tabpanel" aria-labelledby="physical-tab" markdown="1">
+
+{% include docs/install/devices/android-physical.md os=include.os %}
+
+</div>
+</div>
+{% comment %} End: Tab panes. {% endcomment -%}
+
+### Agree to Android licenses
+
+{% include docs/help-link.md location='android-licenses' section='#android-setup' %}
+
+Before you can use Flutter and after you install all prerequisites,
+agree to the licenses of the Android SDK platform.
+
+1. Open an elevated console window.
+
+1. Run the following command to enable signing licenses.
+
+   ```terminal
+   $ flutter doctor --android-licenses
+   ```
+
+   If you accepted the Android Studio licenses at another time,
+   this command returns:
+
+   ```terminal
+   [========================================] 100% Computing updates...
+   All SDK package licenses accepted.
+   ```
+
+   You can skip the next step.
+
+1. Before agreeing to the terms of each license,
+   read each with care.
+
+#### Troubleshooting licensing issues
+{:.no_toc}
+
+<details markdown="1">
+<summary>How to fix the error of finding Java install</summary>
+
+You might have an issue with the Android SDK locating the Java SDK.
+
+```terminal
+$ flutter doctor --android-licenses
+
+ERROR: JAVA_HOME is set to an invalid directory: /Applications/Android\ Studio.app/Contents/jre/Contents/Home
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation.
+
+Android sdkmanager tool was found, but failed to run
+(/Users/atsansone/Library/Android/sdk/cmdline-tools/latest/bin/sdkmanager): "exited code 1".
+Try re-installing or updating your Android SDK,
+visit https://flutter.dev/docs/get-started/install/macos#android-setup for detailed instructions.
+```
+
+The `flutter doctor` command returns this error because of how the `JAVA_HOME`
+variable was set. When you add the path to `JAVA_HOME`, you can add a backslash
+to the space between `Android` and `Studio` or enclose the entire path in
+matching quotes. You cannot do _both_.
+
+Look for your `JAVA_HOME` path in your appropriate shell resource file.
+
+Change it from:
+
+```conf
+export JAVA_HOME="/Applications/Android\ Studio.app/Contents/jre/Contents/Home"
+```
+
+to:
+
+```conf
+export JAVA_HOME="/Applications/Android Studio.app/Contents/jre/Contents/Home"
+```
+
+Do not include the backslash between `Android` and `Studio`.
+
+To load this updated environment variable, reload your shell.
+This example uses the `zsh` resource file.
+
+```terminal
+source ~/.zshrc
+```
+
+</details>
diff --git a/src/_includes/docs/install/compiler/xcode.md b/src/_includes/docs/install/compiler/xcode.md
new file mode 100644
index 0000000000..7d5095ea27
--- /dev/null
+++ b/src/_includes/docs/install/compiler/xcode.md
@@ -0,0 +1,104 @@
+## Configure iOS development
+
+{% assign prompt1='$' %}
+{% assign os = include.os %}
+{% assign target = include.target %}
+
+### Configure Xcode
+
+To develop Flutter apps for {{os}}, install Xcode to compile to native bytecode.
+
+1. To configure the Xcode command-line tools to use the installed version,
+   run the following commands.
+
+    ```terminal
+    {{prompt1}} sudo sh -c 'xcode-select -s /Applications/Xcode.app/Contents/Developer && xcodebuild -runFirstLaunch'
+    ```
+
+   To use the latest version of Xcode, use this path.
+   If you need to use a different version, specify that path instead.
+
+{% if target=="mobile-ios" %}
+
+1. To install the iOS Simulator, run the following command.
+
+    ```terminal
+    {{prompt1}} xcodebuild -downloadPlatform iOS
+    ```
+
+{% endif %}
+
+1. Sign the Xcode license agreement.
+
+    ```terminal
+    {{prompt1}} sudo xcodebuild -license
+    ```
+
+Try to keep to the current version of Xcode.
+
+{% if target=="mobile-ios" %}
+
+### Configure your target iOS device
+
+With Xcode, you can run Flutter apps on an iOS device or on the simulator.
+
+{% comment %} Nav tabs {% endcomment -%}
+<ul class="nav nav-tabs" id="ios-devices-vp" role="tablist">
+    <li class="nav-item">
+        <a class="nav-link active" id="virtual-tab" href="#virtual" role="tab" aria-controls="virtual" aria-selected="true">Virtual Device</a>
+    </li>
+    <li class="nav-item">
+        <a class="nav-link" id="physical-tab" href="#physical" role="tab" aria-controls="physical" aria-selected="false">Physical Device</a>
+    </li>
+</ul>
+
+{% comment %} Tab panes {% endcomment -%}
+<div class="tab-content">
+
+<div class="tab-pane active" id="virtual" role="tabpanel" aria-labelledby="virtual-tab" markdown="1">
+
+{% include docs/install/devices/ios-simulator.md os=include.os %}
+
+</div>
+
+<div class="tab-pane" id="physical" role="tabpanel" aria-labelledby="physical-tab" markdown="1">
+
+{% include docs/install/devices/ios-physical.md os=include.os %}
+
+</div>
+</div>
+{% comment %} End: Tab panes. {% endcomment -%}
+
+{% endif %}
+
+### Install CocoaPods
+
+If your apps depend on [Flutter plugins][] with native {{os}} code,
+install CocoaPods. Built using Ruby,
+CocoaPods handles the bundling of various dependencies across Flutter
+and {{os}} code.
+
+To [install and set up CocoaPods][cocoapods], run the following commands:
+
+1. Install Homebrew if necessary.
+
+   ```terminal
+   /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
+   ```
+
+1. Install `ruby` using Homebrew.
+
+   ```terminal
+   {{prompt1}} brew install ruby
+   ```
+
+1. Install `cocoapods` using Homebrew.
+
+   ```terminal
+   {{prompt1}} brew install cocoapods
+   ```
+
+Using Homebrew reduces potential issues with chipsets and install permissions.
+
+[Flutter plugins]: {{site.url}}/packages-and-plugins/developing-packages#types
+[cocoapods]: https://formulae.brew.sh/formula/cocoapods
diff --git a/src/_includes/docs/install/devices/android-emulator.md b/src/_includes/docs/install/devices/android-emulator.md
new file mode 100644
index 0000000000..e0cb21f174
--- /dev/null
+++ b/src/_includes/docs/install/devices/android-emulator.md
@@ -0,0 +1,80 @@
+#### Set up the Android emulator
+{:.no_toc}
+
+{% include docs/help-link.md location='android-emulator' section='#android-setup' %}
+
+{% if include.os=='Windows' -%}
+{% assign images = '**x86 Images**' -%}
+{% elsif include.os=='macOS' -%}
+{% assign images = '**x86 Images** if your Mac runs on an Intel CPU or **ARM Images** if your Mac runs on an Apple CPU' -%}
+{% endif -%}
+
+To configure your Flutter app to run in the Android emulator,
+follow these steps:
+
+1. Enable
+    [VM acceleration]({{site.android-dev}}/studio/run/emulator-acceleration#accel-vm)
+    on your development computer.
+
+1. Start **Android Studio**.
+
+1. Go to the **Settings** dialog to view the **SDK Manager**.
+
+   1. If you have a project open,
+      go to **Tools** <span aria-label="and then">></span>
+      **Device Manager**.
+
+   1. If the **Welcome to Android Studio** dialog displays,
+      click the **More Options** icon that follows the **Open** button
+      and click **Device Manager** from the dropdown menu.
+
+1. Click **Virtual**.
+
+1. Click **Create Device**.
+
+   The **Virtual Device Configuration** dialog displays.
+
+1. Select either **Phone** or **Tablet** under **Category**.
+
+1. Select a device definition. You can browse or search for the device.
+
+1. Click **Next**.
+
+1. Click {{images}}.
+
+1. Click one system image for the Android version you want to emulate.
+
+   {:type="a"}
+   1. If the desired image has a **Download** icon to the right
+      of the **Release Name**, click it.
+
+      The **SDK Quickfix Installation** dialog displays with a
+      completion meter.
+
+   1. When the download completes, click **Finish**.
+
+1. Click **Next**.
+
+   The **Virtual Device Configuration** displays its
+   **Verify Configuation** step.
+
+1. To rename the Android Virtual Device (AVD), change the value in the
+   **AVD Name** box.
+
+1. Click **Show Advanced Settings**.
+
+1. Scroll to **Emulated Performance**.
+
+1. From the **Graphics** dropdown menu, select **Hardware - GLES 2.0**.
+
+   This enables [hardware acceleration]({{site.android-dev}}/studio/run/emulator-acceleration).
+
+1. Verify your AVD configuration. If it is correct, click **Finish**.
+
+   To learn more about AVDs, check out
+   [Managing AVDs]({{site.android-dev}}/studio/run/managing-avds).
+
+1. In the **Device Manager** dialog, click the **Run** icon to the right
+   of your desired AVD.
+   The emulator starts up and displays the default canvas for your
+   selected OS version and device.
diff --git a/src/_includes/docs/install/devices/android-physical.md b/src/_includes/docs/install/devices/android-physical.md
new file mode 100644
index 0000000000..2c27e46cd8
--- /dev/null
+++ b/src/_includes/docs/install/devices/android-physical.md
@@ -0,0 +1,50 @@
+#### Set up your target Android device
+{:.no_toc}
+
+{% include docs/help-link.md location='android-device' section='#android-setup' %}
+
+To configure your Flutter app to run on a physical Android device,
+you need an Android device running {{site.targetmin.android}} or later.
+
+1. Enable **Developer options** and **USB debugging** on your device
+   as described in the
+   [Android documentation]({{site.android-dev}}/studio/debug/dev-options).
+
+1. [Optional] To leverage wireless debugging,
+   enable **Wireless debugging** on your device as described in the
+   [Android documentation]({{site.android-dev}}/studio/run/device#wireless).
+
+{%- if include.os == 'Windows' %}
+
+1. Install the [Google USB Driver]({{site.android-dev}}/studio/run/win-usb).
+
+{% endif %}
+
+1. Plug your device into your {{include.os}} computer.
+   If your device prompts you, authorize your computer to access your device.
+
+1. Verify that Flutter recognizes your connected Android device.
+
+   {%- if include.os == 'Windows' %}
+
+   In PowerShell, run:
+
+   ```terminal
+   c:\> flutter devices
+   ```
+
+   {% elsif include.os == 'macOS' %}
+
+   In the Terminal, run:
+
+   ```terminal
+   $ flutter devices
+   ```
+
+   {% endif %}
+
+   By default, Flutter uses the version of the Android
+   SDK where your `adb` tool is based.
+   To use a different Android SDK installation path with Flutter,
+   set the `ANDROID_SDK_ROOT` environment variable
+   to that installation directory.
diff --git a/src/_includes/docs/install/devices/ios-physical.md b/src/_includes/docs/install/devices/ios-physical.md
new file mode 100644
index 0000000000..f1c0125d63
--- /dev/null
+++ b/src/_includes/docs/install/devices/ios-physical.md
@@ -0,0 +1,267 @@
+#### Set up your target physical iOS device
+{:.no_toc}
+
+To deploy your Flutter app to a physical iPhone or iPad,
+you need to do the following:
+
+- Create an [Apple Developer][] account.
+- Set up physical device deployment in Xcode.
+- Create a development provisioning profile to self-sign certificates.
+- Install the third-party CocoaPods dependency manager
+  if your app uses Flutter plugins.
+
+##### Create your Apple ID and Apple Developer account
+{:.no_toc}
+
+To test deploying to a physical iOS device, you need an Apple ID.
+
+To distribute your app to the App Store,
+you must enroll in the Apple Developer Program.
+
+If you only need to test deploying your app,
+complete the first step and move on to the next section.
+
+1. If you don't have an [Apple ID][], create one.
+
+1. If you haven't enrolled in the [Apple Developer][] program, enroll now.
+
+   To learn more about membership types,
+   check out [Choosing a Membership][].
+
+[Apple ID]: https://support.apple.com/en-us/HT204316
+
+##### Attach your physical iOS device to your Mac {#attach}
+{:.no_toc}
+
+Configure your physical iOS device to connect to Xcode.
+
+1. Attach your iOS device to the USB port on your Mac.
+
+1. On first connecting your iOS device to your Mac,
+   your iOS device displays the **Trust this computer?** dialog.
+
+1. Click **Trust**.
+
+   ![Trust Mac][]{:.mw-100}
+
+1. When prompted, unlock your iOS device.
+
+##### Enable Developer Mode on iOS 16 or later
+{:.no_toc}
+
+Starting with iOS 16, Apple requires you to enable **[Developer Mode][]**
+to protect against malicious software.
+Enable Developer Mode before deploying to a device running iOS 16 or later.
+
+1. Tap on **Settings** <span aria-label="and then">></span>
+   **Privacy & Security** <span aria-label="and then">></span>
+   **Developer Mode**.
+
+1. Tap to toggle **Developer Mode** to **On**.
+
+1. Tap **Restart**.
+
+1. After the iOS device restarts, unlock your iOS device.
+
+1. When the **Turn on Developer Mode?** dialog appears, tap **Turn On**.
+
+   The dialog explains that Developer Mode requires reducing the security
+   of the iOS device.
+
+1. Unlock your iOS device.
+
+##### Enable developer code signing certificates
+{:.no_toc}
+
+To deploy to a physical iOS device, you need to establish trust with your
+Mac and the iOS device.
+This requires you to load signed developer certificates to your iOS device.
+To sign an app in Xcode,
+you need to create a development provisioning profile.
+
+Follow the Xcode signing flow to provision your project.
+
+1. Open Xcode.
+
+1. Sign in to Xcode with your Apple ID.
+
+   {: type="a"}
+   1. Go to **Xcode** <span aria-label="and then">></span>
+      **Settings...*
+   1. Click **Accounts**.
+   . Click **+**.
+   . Select **Apple ID** and click **Continue**.
+   . When prompted, enter your **Apple ID** and **Password**.
+   . Close the **Settings** dialog.
+     Development and testing supports any Apple ID.
+
+1. Go to **File** <span aria-label="and then">></span> **Open...**
+
+   You can also press <kbd>Cmd</kbd> + <kbd>O</kbd>.
+
+1. Navigate to your Flutter project directory.
+
+1. Open the default Xcode workspace in your project: `ios/Runner.xcworkspace`.
+
+1. Select the physical iOS device you intend to deploy to in the device
+   drop-down menu to the right of the run button.
+
+   It should appear under the **iOS devices** heading.
+
+1. In the left navigation panel under **Targets**, select **Runner**.
+
+1. In the **Runner** settings pane, click **Signing & Capabilities**.
+
+1. Select **All** at the top.
+
+1. Select **Automatically manage signing**.
+
+1. Select a team from the **Team** dropdown menu.
+
+   Teams are created in the **App Store Connect** section of your
+   [Apple Developer Account][] page.
+   If you have not created a team, you can choose a _personal team_.
+
+   The **Team** dropdown displays that option as **Your Name (Personal Team)**.
+
+   ![Xcode account add][]{:.mw-100}
+
+   After you select a team, Xcode performs the following tasks:
+
+   {: type="a"}
+   1. Creates and downloads a Development Certificate
+   1. Registers your device with your account,
+   1. Creates and downloads a provisioning profile if needed
+      If automatic signing fails in Xcode, verify that the project's
+      **General** <span aria-label="and then">></span>
+      **Identity** <span aria-label="and then">></span>
+      **Bundle Identifier** value is unique.
+
+![Check the app's Bundle ID][]{:.mw-100}
+
+##### Enable trust of your Mac and iOS device {#trust}
+{:.no_toc}
+
+When you attach your physical iOS device for the first time,
+enable trust for both your Mac and the Development Certificate
+on the iOS device.
+
+You should enabled trust of your Mac on your iOS device when
+you [attached the device to your Mac](#attach).
+
+###### Enable developer certificate for your iOS devices
+{:.no_toc}
+
+Enabling certificates varies in different versions of iOS.
+
+{% comment %} Nav tabs {% endcomment -%}
+<ul class="nav nav-tabs" id="ios-versions" role="tablist">
+    <li class="nav-item">
+        <a class="nav-link" id="ios14-tab" href="#ios14" role="tab" aria-controls="ios14" aria-selected="true">iOS 14</a>
+    </li>
+    <li class="nav-item">
+        <a class="nav-link" id="ios15-tab" href="#ios15" role="tab" aria-controls="ios15" aria-selected="false">iOS 15</a>
+    </li>
+    <li class="nav-item">
+        <a class="nav-link active" id="ios16-tab" href="#ios16" role="tab" aria-controls="ios16" aria-selected="false">iOS 16 or later</a>
+    </li>
+</ul>
+
+{% comment %} Tab panes {% endcomment -%}
+<div class="tab-content">
+
+<div class="tab-pane" id="ios14" role="tabpanel" aria-labelledby="ios14-tab" markdown="1">
+
+1. Open the **Settings** app on the iOS device.
+
+1. Tap on **General** <span aria-label="and then">></span>
+   **Profiles & Device Management**.
+
+1. Tap to toggle your Certificate to **Enable**
+
+</div>
+
+<div class="tab-pane" id="ios15" role="tabpanel" aria-labelledby="ios15-tab" markdown="1">
+
+1. Open the **Settings** app on the iOS device.
+
+1. Tap on **General** <span aria-label="and then">></span>
+    **VPN & Device Management**.
+
+1. Tap to toggle your Certificate to **Enable**.
+
+</div>
+
+<div class="tab-pane active" id="ios16" role="tabpanel" aria-labelledby="ios16-tab" markdown="1">
+
+1. Open the **Settings** app on the iOS device.
+
+1. Tap on **General** <span aria-label="and then">></span>
+    **VPN & Device Management**.
+
+1. Under the **Developer App** heading, you should find your certificate.
+
+1. Tap your Certificate.
+
+1. Tap **Trust "\<certificate\>"**.
+
+1. When the dialog displays, tap **Trust**.
+
+</div>
+</div>{% comment %} End: Tab panes. {% endcomment -%}
+
+If prompted, enter your Mac password into the
+**codesign wants to access key...** dialog and tap **Always Allow**.
+
+#### Set up wireless debugging on your iOS device (Optional)
+{:.no_toc}
+
+To debug your device using a Wi-Fi connection, follow this procedure.
+
+1. Connect your iOS device to the same network as your macOS device.
+
+1. Set a passcode for your iOS device.
+
+1. Open **Xcode**.
+
+1. Go to **Window** <span aria-label="and then">></span>
+   **Devices and Simulators**.
+
+   You can also press <kbd>Shift</kbd> + <kbd>Cmd</kbd> + <kbd>2</kbd>.
+
+1. Select your iOS device.
+
+1. Select **Connect via Network**.
+
+1. Once the network icon appears next to the device name,
+   unplug your iOS device from your Mac.
+
+If you don't see your device listed when using `flutter run`,
+extend the timeout. The timeout defaults to 10 seconds.
+To extend the timeout, change the value to an integer greater than 10.
+
+```terminal
+flutter run --device-timeout 60
+```
+
+{{site.alert.secondary}}
+  **Learn more about wireless debugging**
+
+  * To learn more, check out
+    [Apple's documentation on pairing a wireless device with Xcode][].
+  * To troubleshoot, check out [Apple's Developer Forums][].
+  * To learn how to configure wireless debugging with `flutter attach`,
+    check out [Debugging your add-to-app module][].
+
+{{site.alert.end}}
+
+[Check the app's Bundle ID]: {{site.url}}/assets/images/docs/setup/xcode-unique-bundle-id.png
+[Choosing a Membership]: {{site.apple-dev}}/support/compare-memberships
+[Trust Mac]: {{site.url}}/assets/images/docs/setup/trust-computer.png
+[Xcode account add]: {{site.url}}/assets/images/docs/setup/xcode-account.png
+[Developer Mode]: {{site.apple-dev}}/documentation/xcode/enabling-developer-mode-on-a-device
+[Apple's Developer Forums]: {{site.apple-dev}}/forums/
+[Debugging your add-to-app module]: {{site.url}}/add-to-app/debugging/#wireless-debugging
+[Apple's documentation on pairing a wireless device with Xcode]: https://help.apple.com/xcode/mac/9.0/index.html?localePath=en.lproj#/devbc48d1bad
+[Apple Developer]: {{site.apple-dev}}/programs/
+[Apple Developer Account]: {{site.apple-dev}}/account
diff --git a/src/_includes/docs/install/devices/ios-simulator.md b/src/_includes/docs/install/devices/ios-simulator.md
new file mode 100644
index 0000000000..02cc673994
--- /dev/null
+++ b/src/_includes/docs/install/devices/ios-simulator.md
@@ -0,0 +1,47 @@
+#### Configure your iOS simulator
+{:.no_toc}
+
+To prepare to run and test your Flutter app on the iOS simulator,
+follow this procedure.
+
+1. To start the Simulator, run the following command:
+
+    ```terminal
+    open -a Simulator
+    ```
+
+1. Set your Simulator to use a 64-bit device.
+   This covers the iPhone 5s or later.
+
+   * From **Xcode**, choose a simulator device type.
+
+     1. Go to **Window** <span aria-label="and then">></span>
+        **Devices and Simulators**.
+        You can also press <kbd>Cmd</kbd> + <kbd>Shift</kbd> + <kbd>2</kbd>.
+     2. Once the **Devices and Simulators** dialog opens,
+        click **Simulators**.
+     3. Choose a **Simulator** from the left-hand list or press **+** to
+        create a new simulator.
+
+   * From the **Simulator** app, go to
+     **File** <span aria-label="and then">></span>
+     **Open Simulator** <span aria-label="and then">></span>
+     Choose your target iOS device.
+
+   * To check the device version in the Simulator,
+     open the **Settings** app <span aria-label="and then">></span>
+     **General** <span aria-label="and then">></span>
+     **About**.
+
+1. The simulated high-screen density iOS devices might overflow your screen.
+   If that appears true on your Mac, change the presented size in the
+   **Simulator** app.
+
+    |  **Display Size** |                          **Menu command**                          |     **Keyboard shortcut**     |
+    |:-----------------:|:------------------------------------------------------------------:|:-----------------------------:|
+    | Small             | **Window** <span aria-label="and then">></span> **Physical Size**  | <kbd>Cmd</kbd> + <kbd>1</kbd> |
+    | Moderate          | **Window** <span aria-label="and then">></span> **Point Accurate** | <kbd>Cmd</kbd> + <kbd>2</kbd> |
+    | HD accurate       | **Window** <span aria-label="and then">></span> **Pixel Accurate** | <kbd>Cmd</kbd> + <kbd>3</kbd> |
+    | Fit to screen     | **Window** <span aria-label="and then">></span> **Fit Screen**     | <kbd>Cmd</kbd> + <kbd>4</kbd> |
+    {:.table.table-striped}
+
diff --git a/src/_includes/docs/install/flutter-doctor-success.md b/src/_includes/docs/install/flutter-doctor-success.md
new file mode 100644
index 0000000000..16baa4dc2f
--- /dev/null
+++ b/src/_includes/docs/install/flutter-doctor-success.md
@@ -0,0 +1,45 @@
+Running flutter doctor...
+Doctor summary (to see all details, run flutter doctor -v):
+[✓] Flutter (Channel stable, {{site.appnow.flutter}}, on {{os}} A.B chipset, locale en)
+{% if os=='Windows' -%}
+[✓] Windows version (Installed version of Windows is version 10 or higher)
+{% endif -%}
+{% case target -%}
+{% when 'mobile','mobile-android' -%}
+[✓] Android toolchain - develop for Android devices (Android SDK version {{site.appnow.android_sdk}})
+{% else -%}
+[!] Android toolchain - develop for Android devices
+{% endcase -%}
+{% if target=='web' -%}[✓]{% else -%}[!]{% endif %} Chrome - develop for the web
+{%- if os=='macOS' -%}
+{% case target %}
+{%- when 'desktop', 'mobile-ios' %}
+[✓] Xcode - develop for iOS and macOS (Xcode {{site.appnow.xcode}})
+{%- else %}
+[!] Xcode - develop for iOS and macOS (Xcode not installed)
+{%- endcase %}
+{% endif -%}
+{% if os=='Windows' %}
+{% if target=='desktop' -%}
+[✓] Visual Studio - develop Windows apps (version 2022)
+{% else -%}
+[!] Visual Studio - develop Windows apps
+{% endif -%}
+{% endif -%}
+{% if target=='mobile' or target=='mobile-android' -%}
+[✓] Android Studio (version {{site.appnow.android_studio}})
+{% else -%}
+[!] Android Studio (not installed)
+{% endif -%}
+[✓] VS Code (version {{site.appnow.vscode}})
+[✓] Connected device (1 available)
+[✓] Network resources
+
+{% case target %}
+{% when 'desktop','mobile-ios' -%}
+! Doctor found issues in 3 categories.
+{% when 'mobile', 'mobile-android' -%}
+! Doctor found issues in 2 categories.
+{% when 'web' -%}
+! Doctor found issues in 4 categories.
+{% endcase -%}
diff --git a/src/_includes/docs/install/flutter-doctor.md b/src/_includes/docs/install/flutter-doctor.md
new file mode 100644
index 0000000000..364412e5af
--- /dev/null
+++ b/src/_includes/docs/install/flutter-doctor.md
@@ -0,0 +1,74 @@
+## Check your development setup
+
+{% include docs/help-link.md location='win-doctor' %}
+
+{% assign os = include.os %}
+{% assign target = include.target %}
+{% assign compiler = include.compiler %}
+
+{% case target %}
+{% when 'mobile-ios' %}
+   {% assign v-target = 'iOS' %}
+{% when 'mobile-android' %}
+   {% assign v-target = 'Android' %}
+{% else %}
+   {% assign v-target = target %}
+{% endcase %}
+
+{% case os %}
+{% when 'Windows' -%}
+   {% assign path='C:\dev\flutter' %}
+   {% assign terminal='PowerShell' %}
+   {% assign prompt1='D:>' %}
+   {% assign prompt2=path | append: '>' %}
+{% when "macOS" -%}
+   {% assign path='~/development/flutter' %}
+   {% assign terminal='the Terminal' %}
+   {% assign prompt1='$' %}
+   {% assign prompt2='$' %}
+{% else -%}
+   {% assign path='/usr/bin/flutter' %}
+   {% assign terminal='a shell' %}
+   {% assign prompt1='$' %}
+   {% assign prompt2='$' %}
+{% endcase -%}
+
+### Run Flutter doctor
+
+The `flutter doctor` command validates that all components of a
+complete Flutter development environment for {{os}}.
+
+1. Open {{terminal}}.
+
+1. To verify your installation of all the components,
+   run the following command.
+
+   ```terminal
+   {{prompt2}} flutter doctor
+   ```
+
+As you chose to develop for {{v-target}},
+you do not need _all_ components.
+If you followed this guide, the result of your command should resemble:
+
+```terminal
+{% include docs/install/flutter-doctor-success.md %}
+```
+
+### Troubleshoot Flutter doctor issues
+
+When the `flutter doctor` command returns an error, it could be for Flutter,
+VS Code, {{compiler}}, the connected device, or network resources.
+
+If the `flutter doctor` command returns an error for any of these components,
+run it again with the verbose flag.
+
+```terminal
+{{prompt2}} flutter doctor -v
+```
+
+Check the output for other software you might need to install
+or further tasks to perform.
+
+If you change the configuration of your Flutter SDK or its related components,
+run `flutter doctor` again to verify the install.
diff --git a/src/_includes/docs/install/flutter-sdk.md b/src/_includes/docs/install/flutter-sdk.md
new file mode 100644
index 0000000000..167acb5e5a
--- /dev/null
+++ b/src/_includes/docs/install/flutter-sdk.md
@@ -0,0 +1,46 @@
+{% assign os=include.os %}
+{% assign terminal=include.terminal %}
+{% case target %}
+{% when 'mobile-ios' %}
+   {% assign v-target = 'iOS' %}
+{% when 'mobile-android' %}
+   {% assign v-target = 'Android' %}
+{% else %}
+   {% assign v-target = target %}
+{% endcase %}
+
+## Install the Flutter SDK
+
+To install the Flutter SDK, you can use the VS Code Flutter extension
+or download and install the Flutter bundle yourself.
+
+{% comment %} Nav tabs {% endcomment -%}
+<ul class="nav nav-tabs" id="flutter-install" role="tablist">
+    <li class="nav-item">
+        <a class="nav-link active" id="vscode-tab" href="#vscode" role="tab" aria-controls="vscode" aria-selected="true">Use VS Code to install</a>
+    </li>
+    <li class="nav-item">
+        <a class="nav-link" id="download-tab" href="#download" role="tab" aria-controls="download" aria-selected="false">Download and install</a>
+    </li>
+</ul>
+
+{% comment %} Tab panes {% endcomment -%}
+<div class="tab-content">
+
+<div class="tab-pane active" id="vscode" role="tabpanel" aria-labelledby="vscode-tab" markdown="1">
+
+{% include docs/install/flutter/vscode.md os=os terminal=terminal %}
+
+</div>
+
+<div class="tab-pane" id="download" role="tabpanel" aria-labelledby="download-tab" markdown="1">
+
+{% include docs/install/flutter/download.md os=os terminal=terminal %}
+
+</div>
+</div>
+{% comment %} End: Tab panes. {% endcomment -%}
+
+If you have installed all prerequisites and the Flutter SDK,
+you should be able to start developing Flutter on
+{{include.os}} for {{include.target}}.
diff --git a/src/_includes/docs/install/flutter/download.md b/src/_includes/docs/install/flutter/download.md
new file mode 100644
index 0000000000..37b842ed94
--- /dev/null
+++ b/src/_includes/docs/install/flutter/download.md
@@ -0,0 +1,89 @@
+{% assign terminal=include.terminal %}
+
+### Download then install Flutter
+{:.no_toc}
+
+{% assign os = include.os %}
+{% assign osl = include.os | downcase %}
+{% case os %}
+{% when 'Windows' -%}
+   {% assign unzip='Extract-Archive' %}
+   {% assign path='C:\dev\' %}
+   {% assign terminal='PowerShell' %}
+   {% assign prompt1='D:>' %}
+   {% assign prompt2=path | append: '>' %}
+   {% assign diroptions='`%USERPROFILE%` or `C:\dev`' %}
+   {% assign dirinstall='`C:\dev\`' %}
+   {% assign dirdl='%CSIDL_DEFAULT_DOWNLOADS%\' %}
+   {% assign mv1 = 'Move-Item –Path ' | append: dirdl %}
+   {% assign mv2 = '-Destination ' %}
+{% when "macOS" -%}
+   {% assign diroptions='`~/development/`' %}
+   {% assign dirinstall='`~/development/`' %}
+   {% assign unzip='unzip' %}
+   {% assign path='~/development/' %}
+   {% assign terminal='the Terminal' %}
+   {% assign prompt1='$' %}
+   {% assign prompt2='$' %}
+   {% assign dirdl='~/Downloads/' %}
+   {% assign mv1 = 'mv ' | append: dirdl %}
+{% else -%}
+   {% assign diroptions='`~/development/`' %}
+   {% assign dirinstall='`~/development/`' %}
+   {% assign unzip='unzip' %}
+   {% assign path='/usr/bin/' %}
+   {% assign terminal='a shell' %}
+   {% assign prompt1='$' %}
+   {% assign prompt2='$' %}
+   {% assign dirdl='~/Downloads/' %}
+   {% assign mv1 = 'mv ' | append: dirdl %}
+{% endcase -%}
+
+1. Download the following installation bundle to get the latest
+   {{site.sdk.channel}} release of the Flutter SDK.
+
+   {% if os=='macOS' %}
+
+   | Intel | | <span class="apple-silicon">Apple Silicon</span> |
+   |-------| | ---------------|
+   | [(loading...)](#){:.download-latest-link-{{osl}}.btn.btn-primary} | | [(loading...)](#){:.download-latest-link-{{osl}}-arm64.apple-silicon.btn.btn-primary} |
+
+   {% else %}
+
+   [(loading...)](#){:.download-latest-link-{{osl}}.btn.btn-primary}
+
+   {% endif -%}
+
+   For other release channels, and older builds,
+   check out the [SDK archive][].
+
+   This guide presumes that you downloaded your Flutter SDK to the
+   default download directory for {{os}}: `{{dirdl}}`.
+
+1. Create a folder where you can install Flutter.
+
+   Consider {{diroptions}}.
+   {% if os == "Windows" -%}
+   {% include docs/install/admonitions/install-paths.md %}
+   {% endif %}
+
+1. Move the zip file into the directory you want to store the Flutter SDK.
+
+   ```terminal
+   {{prompt2}} {{mv1}}flutter_sdk_v1.0.0.zip {{mv2}}{{path}}
+   ```
+
+1. Extract the zip file.
+
+   ```terminal
+   {{prompt2}} {{unzip}} flutter_sdk_v1.0.0.zip
+   ```
+
+   When finished, the Flutter SDK should be in the {{dirinstall}}`flutter`
+   directory.
+
+[SDK archive]: {{site.url}}/release/archive
+
+{% if os == 'Windows' %}
+{% include docs/install/reqs/windows/set-path.md terminal=terminal %}
+{% endif %}
diff --git a/src/_includes/docs/install/flutter/vscode.md b/src/_includes/docs/install/flutter/vscode.md
new file mode 100644
index 0000000000..5cfe0db148
--- /dev/null
+++ b/src/_includes/docs/install/flutter/vscode.md
@@ -0,0 +1,130 @@
+{% assign os=include.os %}
+{% assign terminal=include.terminal %}
+{%- if os=='macOS' -%}
+{% assign special = 'Command' %}
+{% else %}
+{% assign special = 'Control' %}
+{%- endif %}
+
+### Use VS Code to install Flutter
+{:.no_toc}
+
+#### Start Flutter install
+{:.no_toc}
+
+1. Open VS Code.
+
+1. To open the Command Palette,
+   press <kbd>{{special}}</kbd> + <kbd>Shift</kbd> + <kbd>P</kbd>.
+
+1. In the Command Palette, type `flutter`.
+
+1. Select **Flutter: New Project**.
+
+1. VS Code prompts you to locate the Flutter SDK on your computer.
+
+   {:type="a"}
+   1. If you have the Flutter SDK installed, click **Locate SDK**.
+
+   1. If you do not have the Flutter SDK installed, click **Download SDK**.
+
+      This option sends you the Flutter install page if you have not installed
+      Git for Windows as directed in the [development tools prerequisites][].
+
+1. When prompted **Which Flutter template?**, ignore it.
+   Press <kbd>Esc</kbd>.
+   You can create a test project after checking your development setup.
+
+#### Download the Flutter SDK
+{:.no_toc}
+
+1. When the **Select Folder for Flutter SDK** dialog displays,
+   choose where you want to install Flutter.
+
+   VS Code places you in your user profile to start.
+   Choose a different location.
+
+   {% if os == "Windows" -%}
+   Consider `%USERPROFILE%` or `C:\dev`.
+
+   {% include docs/install/admonitions/install-paths.md %}
+   {% else -%}
+   Consider `~/development/`
+   {% endif %}
+
+1. Click **Clone Flutter**.
+
+   While downloading Flutter, VS Code displays this pop-up notification:
+
+   ```terminal
+   Downloading the Flutter SDK. This may take a few minutes.
+   ```
+
+   This download takes a few minutes.
+   If you suspect that the download has hung, click **Cancel** then
+   start the installation again.
+
+1. Once it finishes downloading Flutter, the **Output** panel displays.
+
+   ```terminal
+   Checking Dart SDK version...
+   Downloading Dart SDK from the Flutter engine ...
+   Expanding downloaded archive...
+   ```
+
+   When successful, VS Code displays this pop-up notification:
+
+   ```terminal
+   Initializing the Flutter SDK. This may take a few minutes.
+   ```
+
+   While initializing, the **Output** panel displays the following:
+
+   ```terminal
+   Building flutter tool...
+   Running pub upgrade...
+   Resolving dependencies...
+   Got dependencies.
+   Downloading Material fonts...
+   Downloading Gradle Wrapper...
+   Downloading package sky_engine...
+   Downloading flutter_patched_sdk tools...
+   Downloading flutter_patched_sdk_product tools...
+   Downloading windows-x64 tools...
+   Downloading windows-x64/font-subset tools...
+   ```
+
+   This process also runs `flutter doctor -v`.
+   At this point in the procedure, _ignore this output._
+   Flutter Doctor might show errors that don't apply to this quick start.
+
+   When the Flutter install succeeds, VS Code displays this pop-up notification:
+
+   ```terminal
+   Do you want to add the Flutter SDK to PATH so it's accessible
+   in external terminals?
+   ```
+
+{% if os=='Windows' %}
+
+1. Click **Add SDK to PATH**.
+
+   When successful, a notification displays:
+
+   ```terminal
+   The Flutter SDK was added to your PATH
+   ```
+
+{% endif %}
+
+1. VS Code may display a Google Analytics notice.
+
+   If you agree, click **OK**.
+
+1. To enable `flutter` in all {{terminal}} windows:
+
+   {:type="a"}
+   1. Close, then reopen all {{terminal}} windows.
+   1. Restart VS Code.
+
+[development tools prerequisites]: #development-tools
diff --git a/src/_includes/docs/install/reqs/macos/apple-silicon.md b/src/_includes/docs/install/reqs/macos/apple-silicon.md
new file mode 100644
index 0000000000..54fb409320
--- /dev/null
+++ b/src/_includes/docs/install/reqs/macos/apple-silicon.md
@@ -0,0 +1,12 @@
+{{site.alert.important}}
+  When installing on an [Apple Silicon Mac][],
+  install the Rosetta translation environment.
+  Some components require the [Rosetta][need-rosetta].
+
+  ```terminal
+  sudo softwareupdate --install-rosetta --agree-to-license
+  ```
+{{site.alert.end}}
+
+[Apple Silicon Mac]: https://support.apple.com/en-us/HT211814
+[need-rosetta]: {{site.repo.this}}/pull/7119#issuecomment-1124537969
diff --git a/src/_includes/docs/install/reqs/macos/base.md b/src/_includes/docs/install/reqs/macos/base.md
new file mode 100644
index 0000000000..f824b786d5
--- /dev/null
+++ b/src/_includes/docs/install/reqs/macos/base.md
@@ -0,0 +1,78 @@
+{% assign target = include.target %}
+{% assign os = include.os %}
+
+## System requirements
+
+To install and run Flutter,
+your {{os}} environment must meet these requirements:
+
+### Hardware requirements
+
+Your {{os}} Flutter development environment must meet the following
+minimal hardware requirements.
+
+<div class="table-wrapper" markdown="1">
+|     Requirement              |                                    Minimum                               |    Recommended      |
+|:-----------------------------|:------------------------------------------------------------------------:|:-------------------:|
+| x86_64 CPU Cores             | 4                                                                        | 8                   |
+| Memory in GB                 | 8                                                                        | 16                  |
+| Display resolution in pixels | WXGA (1366 x 768)                                                        | FHD (1920 x 1080)   |
+| Free disk space in GB        | {% include docs/install/reqs/macos/storage.md target=target %}
+</div>
+
+### Software requirements
+
+To write and compile Flutter code for {{target}},
+you must have the following version of macOS and the listed
+software packages.
+
+#### Operating system
+{:.no_toc}
+
+Flutter supports macOS {{site.devmin.macos}} or later.
+
+{% include docs/install/reqs/macos/apple-silicon.md %}
+
+#### Development tools
+{:.no_toc}
+
+Download and install the macOS version of the following packages:
+
+{% include docs/install/reqs/macos/software.md target=target %}
+
+The developers of the preceding software provide support for those products.
+To troubleshoot installation issues, consult that product's documentation.
+
+#### Text editor or integrated development environment
+{:.no_toc}
+
+You can build apps with Flutter using any text editor or
+integrated development environment (IDE) combined with
+Flutter’s command-line tools.
+
+Using an IDE with a Flutter extension or plugin provides code completion,
+syntax highlighting, widget editing assists, debugging, and other features.
+
+Popular options include:
+
+* [Visual Studio Code][] {{site.appmin.vscode}} or later
+  with the [Flutter extension for VS Code][].
+* [Android Studio][] {{site.appmin.android_studio}} or later
+  with the [Flutter plugin for IntelliJ][].
+* [IntelliJ IDEA][] {{site.appmin.intellij_idea}} or later
+  with both the [Flutter plugin for IntelliJ][] and
+  the [Android plugin for IntelliJ][].
+
+{{site.alert.recommend}}
+  The Flutter team recommends installing
+  [Visual Studio Code][] {{site.appmin.vscode}} or later and the
+  [Flutter extension for VS Code][].
+  This combination simplifies installing the Flutter SDK.
+{{site.alert.end}}
+
+[Android Studio]: https://developer.android.com/studio/install
+[IntelliJ IDEA]: https://www.jetbrains.com/help/idea/installation-guide.html
+[Visual Studio Code]: https://code.visualstudio.com/docs/setup/mac
+[Flutter extension for VS Code]: https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
+[Flutter plugin for IntelliJ]: https://plugins.jetbrains.com/plugin/9212-flutter
+[Android plugin for IntelliJ]: https://plugins.jetbrains.com/plugin/22989-android
diff --git a/src/_includes/docs/install/reqs/macos/software.md b/src/_includes/docs/install/reqs/macos/software.md
new file mode 100644
index 0000000000..27a5d67e65
--- /dev/null
+++ b/src/_includes/docs/install/reqs/macos/software.md
@@ -0,0 +1,51 @@
+{% assign target = include.target %}
+
+{% case target %}
+{% when 'desktop','mobile-ios' -%}
+
+* [Xcode][] {{site.appnow.xcode}} to debug and compile native Swift or ObjectiveC code.
+* [CocoaPods][] {{site.appnow.cocoapods}} to compile enable Flutter plugins in your native apps.
+* Git {{site.appmin.github_mac}} or later to manage source code.
+  This installs as part of the Xcode installation.
+  * To check if you have `git` installed, type `git version` in your Terminal.
+  * If you don't have `git` installed, use [Homebrew][].
+  * If you have `homebrew` installed, type `brew install git`.
+
+{% when 'mobile-android' -%}
+
+* [Android Studio][] {{site.appmin.android_studio}} to debug and compile
+  Java or Kotlin code for Android.
+  Flutter requires the full version of Android Studio.
+* [Git][] {{site.appmin.github_mac}} or later to manage source code.
+  * To check if you have `git` installed, type `git version` in your Terminal.
+  * If you don't have `git` installed, use [Homebrew][].
+  * If you have `homebrew` installed, type `brew install git`.
+
+{% when 'web' -%}
+
+* [Google Chrome][] to debug JavaScript code for web apps.
+* [Git][] {{site.appmin.github_mac}} or later to manage source code.
+  * To check if you have `git` installed, type `git version` in your Terminal.
+  * If you don't have `git` installed, use [Homebrew][].
+  * If you have `homebrew` installed, type `brew install git`.
+
+{% else -%}
+
+* [Xcode][] {{site.appnow.xcode}} to debug and compile native Swift or ObjectiveC code.
+* [CocoaPods][] {{site.appnow.cocoapods}} to compile enable Flutter plugins in your native apps.
+* [Android Studio][] {{site.appmin.android_studio}} to debug and compile
+  Java or Kotlin code for Android.
+  Flutter requires the full version of Android Studio.
+* The latest version of [Google Chrome][] to debug JavaScript code for web apps.
+* Git {{site.appmin.github_mac}} or later to manage source code.
+  This installs as part of the Xcode installation.
+  To verify that you have `git` installed, type `git version` in your Terminal.
+
+{% endcase -%}
+
+[Homebrew]: https://brew.sh/
+[Git]: https://formulae.brew.sh/formula/git
+[Android Studio]: https://developer.android.com/studio/install#mac
+[Xcode]: {{site.apple-dev}}/xcode/
+[CocoaPods]: https://cocoapods.org/
+[Google Chrome]: https://www.google.com/chrome/dr/download/
diff --git a/src/_includes/docs/install/reqs/macos/storage.md b/src/_includes/docs/install/reqs/macos/storage.md
new file mode 100644
index 0000000000..1434c8c8b5
--- /dev/null
+++ b/src/_includes/docs/install/reqs/macos/storage.md
@@ -0,0 +1,12 @@
+{% if include.target == 'desktop' -%}
+36.0 | 56.0 |
+{% elsif include.target == 'mobile-ios' -%}
+36.0 | 56.0 |
+{% elsif include.target == 'mobile-android' -%}
+10.0 | 18.0 |
+{% elsif include.target == 'web' -%}
+2.5 | 2.5 |
+{% else -%}
+44.0 | 70.0 |
+{% endif -%}
+{:.table.table-striped}
diff --git a/src/_includes/docs/install/reqs/windows/base.md b/src/_includes/docs/install/reqs/windows/base.md
new file mode 100644
index 0000000000..9ec8591633
--- /dev/null
+++ b/src/_includes/docs/install/reqs/windows/base.md
@@ -0,0 +1,78 @@
+{{site.alert.important}}
+  Perform this guide in sequence. Skipping steps can cause errors.
+{{site.alert.end}}
+
+## System requirements
+
+To install and run Flutter,
+your {{include.os}} environment must meet these requirements:
+
+### Hardware requirements
+
+Your {{include.os}} Flutter development environment must meet the following
+minimal hardware requirements.
+
+<div class="table-wrapper" markdown="1">
+|     Requirement              |                                    Minimum                               |    Recommended      |
+|:-----------------------------|:------------------------------------------------------------------------:|:-------------------:|
+| x86_64 CPU Cores             | 4                                                                        | 8                   |
+| Memory in GB                 | 8                                                                        | 16                  |
+| Display resolution in pixels | WXGA (1366 x 768)                                                        | FHD (1920 x 1080)   |
+| Free disk space in GB        | {% include docs/install/reqs/windows/storage.md target=include.target %}
+</div>
+
+### Software requirements
+
+To write and compile Flutter code for {{include.target}},
+you must have the following version of Windows and the listed
+software packages.
+
+#### Operating system
+{:.no_toc}
+
+Flutter supports {{site.devmin.windows}} or later.
+These versions of Windows should include the required
+[Windows PowerShell][] {{site.appmin.powershell}} or later.
+
+#### Development tools
+{:.no_toc}
+
+Download and install the Windows version of the following packages:
+
+* [Git for Windows][] {{site.appmin.github_win}} or later to manage source code.
+{% include docs/install/reqs/windows/software.md target=include.target %}
+
+The developers of the preceding software provide support for those products.
+To troubleshoot installation issues, consult that product's documentation.
+
+## Configure a text editor or IDE
+
+You can build apps with Flutter using any text editor or
+integrated development environment (IDE) combined with
+Flutter’s command-line tools.
+
+Using an IDE with a Flutter extension or plugin provides code completion,
+syntax highlighting, widget editing assists, debugging, and other features.
+
+Popular options include:
+
+* [Visual Studio Code][] {{site.appmin.vscode}} or later
+  with the [Flutter extension for VS Code][].
+* [Android Studio][] {{site.appmin.android_studio}} or later
+  with the [Flutter plugin for IntelliJ][].
+* [IntelliJ IDEA][] {{site.appmin.intellij_idea}} or later
+  with the [Flutter plugin for IntelliJ][].
+
+{{site.alert.recommend}}
+  The Flutter team recommends installing [Visual Studio Code][]
+  {{site.appmin.vscode}} or later and the [Flutter extension for VS Code][].
+  This combination simplifies installing the Flutter SDK.
+{{site.alert.end}}
+
+[Android Studio]: https://developer.android.com/studio/install
+[IntelliJ IDEA]: https://www.jetbrains.com/help/idea/installation-guide.html
+[Visual Studio Code]: https://code.visualstudio.com/docs/setup/windows
+[Flutter extension for VS Code]: https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
+[Flutter plugin for IntelliJ]: https://plugins.jetbrains.com/plugin/9212-flutter
+[Windows PowerShell]: https://docs.microsoft.com/powershell/scripting/install/installing-windows-powershell
+[Git for Windows]: https://gitforwindows.org/
diff --git a/src/_includes/docs/install/reqs/windows/set-path.md b/src/_includes/docs/install/reqs/windows/set-path.md
new file mode 100644
index 0000000000..87688eb914
--- /dev/null
+++ b/src/_includes/docs/install/reqs/windows/set-path.md
@@ -0,0 +1,45 @@
+{% assign terminal=include.terminal %}
+
+### Update your Windows PATH variable
+{:.no_toc}
+
+{% include docs/help-link.md location='win-path' section='#unable-to-find-the-flutter-command' %}
+
+To run Flutter commands in {{terminal}},
+add Flutter to the `PATH` environment variable.
+
+1. Press <kbd>Windows</kbd> + <kbd>S</kbd>.
+
+1. Type `environment`.
+
+1. When **Edit the system environment variables** displays
+   as the **Best match**, click **Open** under
+   **Edit the system environment variables**.
+
+1. Click **About**.
+
+1. Click **Advanced System Settings**.
+
+1. Click **Environment Variables...**
+
+   The **Environment Variables** dialog displays.
+
+1. Under **User variables for \<user\>** check for the **Path** entry.
+
+   {:type="a"}
+   1. If the entry exists, click **Edit...**.
+
+   1. If the entry doesn't exist, click **New...**.
+
+   1. Click **New**.
+
+   1. Type `<install-directory>\flutter\bin`.
+
+   1. Click the **\<install-directory\>\flutter\bin** entry.
+
+   1. Click **Move Up** until the Flutter entry sits at the top of the list.
+
+   1. Click **OK**.
+
+1. To enable these changes,
+   close and reopen any existing command prompts and {{terminal}} instances.
diff --git a/src/_includes/docs/install/reqs/windows/software.md b/src/_includes/docs/install/reqs/windows/software.md
new file mode 100644
index 0000000000..78c90b0467
--- /dev/null
+++ b/src/_includes/docs/install/reqs/windows/software.md
@@ -0,0 +1,34 @@
+{% if include.target == 'desktop' -%}
+
+* [Visual Studio 2022][] to debug and compile native C++ Windows code.
+  Make sure to install the **Desktop development with C++** workload.
+  This enables building Windows app including all of its default components.
+  **Visual Studio** is an IDE separate from **[Visual Studio _Code_][]**.
+
+{% elsif include.target == 'mobile' -%}
+
+* [Android Studio][] {{site.appmin.android_studio}} to debug and compile
+  Java or Kotlin code for Android.
+  Flutter requires the full version of Android Studio.
+
+{% elsif include.target == 'web' -%}
+
+* [Google Chrome][] to debug JavaScript code for web apps.
+
+{% else -%}
+
+* [Visual Studio 2022][] to debug and compile native C++ Windows code.
+  Make sure to install the **Desktop development with C++** workload.
+  This enables building Windows app including all of its default components.
+  **Visual Studio** is an IDE separate from **[Visual Studio _Code_][]**.
+* [Android Studio][] {{site.appmin.android_studio}} to debug and compile
+  Java or Kotlin code for Android.
+  Flutter requires the full version of Android Studio.
+* The latest version of [Google Chrome][] to debug JavaScript code for web apps.
+
+{% endif -%}
+
+[Android Studio]: https://developer.android.com/studio/install#windows
+[Visual Studio 2022]: https://learn.microsoft.com/visualstudio/install/install-visual-studio?view=vs-2022
+[Google Chrome]: https://www.google.com/chrome/dr/download/
+[Visual Studio _Code_]: https://code.visualstudio.com/
\ No newline at end of file
diff --git a/src/_includes/docs/install/reqs/windows/storage.md b/src/_includes/docs/install/reqs/windows/storage.md
new file mode 100644
index 0000000000..a7a2728bd5
--- /dev/null
+++ b/src/_includes/docs/install/reqs/windows/storage.md
@@ -0,0 +1,10 @@
+{% if include.target == 'desktop' -%}
+4.0 | 52.0 |
+{% elsif include.target == 'mobile' -%}
+10.0 | 10.0 |
+{% elsif include.target == 'web' -%}
+2.5 | 2.5 |
+{% else -%}
+11.0 | 60.0 |
+{% endif -%}
+{:.table.table-striped}
diff --git a/src/_includes/docs/install/test-drive/androidstudio.md b/src/_includes/docs/install/test-drive/androidstudio.md
new file mode 100644
index 0000000000..a6066615cf
--- /dev/null
+++ b/src/_includes/docs/install/test-drive/androidstudio.md
@@ -0,0 +1,83 @@
+<div class="tab-pane" id="androidstudio" role="tabpanel" aria-labelledby="androidstudio-tab" markdown="1">
+
+### Create your sample Flutter app {#create-app}
+
+1. Launch the IDE.
+
+1. Click **New Flutter Project** at the top of the
+   **Welcome to Android Studio** dialog.
+
+1. Under **Generators**, click **Flutter**.
+
+1. Verify the **Flutter SDK path** value against the Flutter SDK location
+   on your development machine.
+
+1. Click **Next**.
+
+1. Enter `test_drive` into the **Project name** field.
+   This follows best practices for naming Flutter projects.
+
+1. Set the directory in the **Project location** field to
+   `C:\dev\test_drive` on Microsoft Windows or
+   `~/development/test_drive` on other platforms.
+
+   If you didn't create that directory before, Android Studio displays
+   a warning that the **Directory Does Not Exist**. Click **Create**.
+
+1. From **Project type** dropdown, select **Application**.
+
+1. Change the **Organization** to `com.example.flutter.testdrive`.
+
+   Android Studio asks for a company domain name.
+   Android uses the company domain name and project name together as its
+   package name when you release the app. iOS uses its Bundle ID.
+
+   Use `com.example.flutter.testdrive` to prevent future conflicts.
+
+1. Ignore the remaining form fields. You don't need to change them for
+   this test drive. Click **Create**.
+
+1. Wait for Android Studio to create the project.
+
+1. Open the `lib` directory, then the `main.dart`.
+
+   To learn what each code block does, check out the comments in that Dart file.
+
+The previous commands create a Flutter project directory
+called `test_drive` that contains a simple demo app that
+uses [Material Components][].
+
+### Run your sample Flutter app
+
+1. Locate the main Android Studio toolbar at the top of the
+   Android Studio edit window.
+
+   ![Main IntelliJ toolbar][]{:.mw-100}
+
+1. In the **target selector**, select an Android device for running the app.
+   You created your Android target device in the **Install** section.
+
+1. To run your app, make one of the following choices:
+
+   {:type="a"}
+   1. Click the run icon in the toolbar.
+
+   1. Go to **Run** <span aria-label="and then">></span> **Run**.
+
+   1. Press <kbd>Ctrl</kbd> + <kbd>R</kbd>.
+
+{% capture save_changes -%}
+  : invoke **Save All**, or click **Hot Reload**
+  {% include docs/install/test-drive/hot-reload-icon.md %}.
+{% endcapture %}
+
+{% capture ide_profile -%}
+  to invoke the menu item **Run > Profile** in the IDE, or
+{% endcapture %}
+
+{% include docs/install/test-drive/try-hot-reload.md save_changes=save_changes ide="Android Studio" %}
+
+[Main IntelliJ toolbar]: {{site.url}}/assets/images/docs/tools/android-studio/main-toolbar.png
+[Material Components]: {{site.material}}/components
+
+</div>
diff --git a/src/get-started/test-drive/_hot-reload-icon.md b/src/_includes/docs/install/test-drive/hot-reload-icon.md
similarity index 100%
rename from src/get-started/test-drive/_hot-reload-icon.md
rename to src/_includes/docs/install/test-drive/hot-reload-icon.md
diff --git a/src/get-started/test-drive/_restart-vscode.md b/src/_includes/docs/install/test-drive/restart-vscode.md
similarity index 82%
rename from src/get-started/test-drive/_restart-vscode.md
rename to src/_includes/docs/install/test-drive/restart-vscode.md
index 454cb98851..01a929ebe0 100644
--- a/src/get-started/test-drive/_restart-vscode.md
+++ b/src/_includes/docs/install/test-drive/restart-vscode.md
@@ -1,6 +1,6 @@
 {{site.alert.warning}}
 
-  If VS Code was running during your initial Flutter setup, 
+  If VS Code was running during your initial Flutter setup,
   you might need to restart it for VS Code's Flutter plugin to detect the Flutter SDK.
 
   如果你的 VSCode 运行时，Flutter 正在进行初始化安装，
diff --git a/src/_includes/docs/install/test-drive/terminal.md b/src/_includes/docs/install/test-drive/terminal.md
new file mode 100644
index 0000000000..c38a811d65
--- /dev/null
+++ b/src/_includes/docs/install/test-drive/terminal.md
@@ -0,0 +1,47 @@
+<div class="tab-pane" id="terminal" role="tabpanel" aria-labelledby="terminal-tab" markdown="1">
+
+### Create your sample Flutter app {#create-app}
+
+To create a new Flutter app, run the following commands in your shell or Terminal.
+
+1. Run the `flutter create` command.
+
+   ```terminal
+   flutter create test_drive
+   ```
+
+   The command creates a Flutter project directory called `test_drive`
+   that contains a simple demo app that uses [Material Components][].
+
+1. Change to the Flutter project directory.
+
+   ```terminal
+   cd test_drive
+   ```
+
+### Run your sample Flutter app
+
+1. To verify that you have a running target device,
+   run the following command.
+
+   ```terminal
+   flutter devices
+   ```
+
+   You created your target device in the **Install** section.
+
+2. To run your app, run the following command.
+
+   ```terminal
+   flutter run
+   ```
+
+{% capture save_changes -%}
+.
+
+1. Type <kbd>r</kbd> in the terminal window.
+{% endcapture %}
+
+{% include docs/install/test-drive/try-hot-reload.md save_changes=save_changes  ide="VS Code" %}
+
+</div>
diff --git a/src/_includes/docs/install/test-drive/try-hot-reload.md b/src/_includes/docs/install/test-drive/try-hot-reload.md
new file mode 100644
index 0000000000..587d465845
--- /dev/null
+++ b/src/_includes/docs/install/test-drive/try-hot-reload.md
@@ -0,0 +1,36 @@
+After the app build completes, your device displays your app.
+
+{% include docs/app-figure.md img-class="site-mobile-screenshot border"
+    path-prefix="get-started" platform="macOS" image="starter-app.png"
+    caption="Starter app" %}
+
+## Try hot reload
+
+Flutter offers a fast development cycle with _Stateful Hot Reload_,
+the ability to reload the code of a live running app without
+restarting or losing app state.
+
+You can change your app source code, run the hot reload command in
+{{include.ide}}, and see the change in your target device.
+
+1. Open `lib/main.dart`.
+
+1. Change the word `pushed` to `clicked` in the following string.
+   It is on line 109 of the `main.dart` file as of this writing.
+
+   |                    **Original**                   |                       **New**                      |
+   |:-------------------------------------------------:|:--------------------------------------------------:|
+   | `'You have pushed the button this many times:' ,` | `'You have clicked the button this many times:' ,` |
+   {:.table.table-striped}
+
+   {{site.alert.important}}
+     _Don't stop your app._ Let your app run.
+   {{site.alert.end}}
+
+1. Save your changes{{include.save_changes}}
+
+Your app updates the string as you watch.
+
+{% include docs/app-figure.md img-class="site-mobile-screenshot border"
+    path-prefix="get-started" platform="macOS" image="starter-app-hot-reload.png"
+    caption="Starter app after hot reload" %}
diff --git a/src/_includes/docs/install/test-drive/vscode.md b/src/_includes/docs/install/test-drive/vscode.md
new file mode 100644
index 0000000000..8eda808f73
--- /dev/null
+++ b/src/_includes/docs/install/test-drive/vscode.md
@@ -0,0 +1,72 @@
+<div class="tab-pane active" id="vscode" role="tabpanel" aria-labelledby="vscode-tab" markdown="1">
+
+### Create your sample Flutter app {#create-app}
+
+1. Open the Command Palette.
+
+   Go to **View** <span aria-label="and then">></span> **Command Palette** or
+   press <kbd>{{special}}</kbd> + <kbd>Shift</kbd> + <kbd>P</kbd>.
+
+1. Type `flutter`
+
+1. Select the **Flutter: New Project**.
+
+1. When prompted for **Which Flutter Project**, select **Application**.
+
+1. Create or select the parent directory for the new project folder.
+
+1. When prompted for a **Project Name**, enter `test_drive`.
+
+1. Press <kbd>Enter</kbd>.
+
+1. Wait for project creation to complete.
+
+1. Open the `lib` directory, then the `main.dart`.
+
+   To learn what each code block does, check out the comments in that Dart file.
+
+The previous commands create a Flutter project directory called `my_app` that
+contains a simple demo app that uses [Material Components][].
+
+### Run your sample Flutter app
+
+Run your example application on your desktop platform or in an iOS simulator or
+Android emulator.
+
+{{site.alert.secondary}}
+  Though you can deploy your app to the web,
+  don't choose that target for this tutorial.
+  The web target doesn't support hot reload at this time.
+{{site.alert.end}}
+
+1. Open the Command Palette.
+
+   Go to **View** <span aria-label="and then">></span> **Command Palette** or
+   press <kbd>{{special}}</kbd> + <kbd>Shift</kbd> + <kbd>P</kbd>.
+
+1. Type `flutter`
+
+1. Select the **Flutter: Select Device**.
+
+   If no devices are running, this command prompts you to enable a device.
+
+1. Select a target device from **Select Device** prompt.
+
+1. After you select a target, start the app.
+   Go to **Run** <span aria-label="and then">></span>
+   **Start Debugging** or press <kbd>F5</kbd>.
+
+1. Wait for the app to launch.
+
+   You can watch the launch progress in the **Debug Console** view.
+
+{% capture save_changes -%}
+  : invoke **Save All**, or click **Hot Reload**
+  {% include docs/install/test-drive/hot-reload-icon.md %}.
+{% endcapture %}
+
+{% include docs/install/test-drive/try-hot-reload.md save_changes=save_changes ide="VS Code" %}
+
+[Material Components]: {{site.material}}/components
+
+</div>
diff --git a/src/_includes/docs/resource-links/ffi-video-resources.md b/src/_includes/docs/resource-links/ffi-video-resources.md
index f89fb57377..7c24cf44ce 100644
--- a/src/_includes/docs/resource-links/ffi-video-resources.md
+++ b/src/_includes/docs/resource-links/ffi-video-resources.md
@@ -6,5 +6,5 @@ To learn more about C interoperability, check out these videos:
 - [C interoperability with Dart FFI]
 - [How to Use Dart FFI to Build a Retro Audio Player]
 
-[C interoperability with Dart FFI]: {{site.youtube-site}}/watch?v=2MMK7YoFgaA
-[How to Use Dart FFI to Build a Retro Audio Player]: {{site.youtube-site}}/watch?v=05Wn2oM_nWw
\ No newline at end of file
+[C interoperability with Dart FFI]: {{yt-watch}}?v=2MMK7YoFgaA
+[How to Use Dart FFI to Build a Retro Audio Player]: {{yt-watch}}?v=05Wn2oM_nWw
\ No newline at end of file
diff --git a/src/_includes/docs/yt_shims.liquid b/src/_includes/docs/yt_shims.liquid
new file mode 100644
index 0000000000..a0c0109b33
--- /dev/null
+++ b/src/_includes/docs/yt_shims.liquid
@@ -0,0 +1,5 @@
+{% assign yt-set = 'frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen loading="lazy"' %}
+{% assign yt-set-short = 'frameborder="0" allowfullscreen loading="lazy"' %}
+{% assign yt-watch = 'https://www.youtube.com/watch' %}
+{% assign yt-embed = 'https://www.youtube.com/embed' %}
+{% assign yt-playlist = 'https://www.youtube.com/playlist?list=' %}
diff --git a/src/_sass/base/_base.scss b/src/_sass/base/_base.scss
index 2674e2bb27..b71b21752c 100644
--- a/src/_sass/base/_base.scss
+++ b/src/_sass/base/_base.scss
@@ -70,6 +70,10 @@ dd {
   color: $site-color-body;
 }
 
+.d-block.h1 > .material-icons {
+  font-size: 3rem;
+}
+
 .card-image-holder-material-3 {
   align-items: center;
   z-index: -1;
@@ -170,6 +174,18 @@ dd {
 
   .site-figure-container {
     flex: 0 1 auto;
+    max-width: 100%;
+
+    img { width: 100%; }
+
+    figcaption {
+      margin-top: bootstrap.bs-spacer(4);
+      text-align: center;
+    }
+  }
+  .site-figure-container-lg {
+    flex: 0 1 auto;
+    width: 100%;
 
     img { width: 100%; }
 
@@ -231,6 +247,7 @@ dd {
 
 .install-help {
   text-align: right;
+  margin-top: -2.5rem;
 
   a {
     display: inline-flex;
@@ -269,7 +286,7 @@ summary {
   margin-bottom: 1rem;
 }
 
-ol + img, ul + img, ol + p, ul + p, p + p + img {
+ol + img, ul + img, ol + p, ul + p, p + p + img, li:last-child, ul + p:last-child {
   margin-bottom: 1rem;
 }
 
@@ -282,6 +299,14 @@ p + ul, p + ol, p + dl {
   margin-bottom: .5rem;
 }
 
+li.breadcrumb-item:last-child {
+  margin-bottom: 0px;
+}
+
+td ol, td ul, td dl, td p {
+  margin-bottom: 0rem;
+}
+
 .figure-caption {
   font-size: bootstrap.$font-size-sm;
   font-style: italic;
@@ -296,3 +321,15 @@ p + ul, p + ol, p + dl {
   'opsz' 24;
   vertical-align: middle;
 }
+
+aside {
+  .alert {
+    h2, h3, h4, h5, h6 {
+      margin: 0.5rem 0;
+      font-size: 1.5rem;
+    }  
+  }
+  .code-excerpt__code:last-child, div.highlighter-rouge {
+    margin-bottom: 0rem;
+  }
+}
diff --git a/src/_sass/components/_admonitions.scss b/src/_sass/components/_admonitions.scss
new file mode 100644
index 0000000000..fc4f25822d
--- /dev/null
+++ b/src/_sass/components/_admonitions.scss
@@ -0,0 +1,7 @@
+@use '../base/variables' as *;
+@use '../vendor/bootstrap';
+
+aside.alert-icon > p {
+  padding-left: 1.25rem;
+  text-indent: -0.75rem;
+}
diff --git a/src/_sass/site.scss b/src/_sass/site.scss
index 6801805775..d9a1606b1b 100644
--- a/src/_sass/site.scss
+++ b/src/_sass/site.scss
@@ -11,6 +11,7 @@
 
 // -- Components
 // (alpha ordered)
+@use 'components/admonitions';
 @use 'components/animations';
 @use 'components/banner';
 @use 'components/books';
diff --git a/src/about/index.md b/src/about/index.md
index aa86ba8b02..617a99dae7 100644
--- a/src/about/index.md
+++ b/src/about/index.md
@@ -5,9 +5,11 @@ toc: true
 description: 关于 Flutter 文档中文版
 ---
 
+{% include docs/bili_shims.liquid %}
+
 Flutter 的魅力之一是开源开放，Flutter 由 Google 主导，与全球的开发者共同协作。
 中国的开发者数量占全球的 20% 以上，也有大量贡献者为 Flutter 的生态提供了很大的帮助和贡献。
-请查看这个视频，了解更多 [Flutter 中国开发者的情况](https://www.bilibili.com/video/av68148864)。
+请查看这个视频，了解更多 [Flutter 中国开发者的情况]({{bili-video}}/BV1YJ411w7qX)。
 
 ### 关于 Flutter 文档中文版
 
diff --git a/src/add-to-app/android/add-flutter-fragment.md b/src/add-to-app/android/add-flutter-fragment.md
index 4c26207927..b5b403bd6f 100644
--- a/src/add-to-app/android/add-flutter-fragment.md
+++ b/src/add-to-app/android/add-flutter-fragment.md
@@ -797,7 +797,7 @@ surrounding `Activity`.
 
 {{site.alert.end}}
 
-[`Fragment`]: https://developer.android.com/guide/components/fragments
+[`Fragment`]: {{site.android-dev}}/guide/components/fragments
 [`FlutterFragment`]: {{site.api}}/javadoc/io/flutter/embedding/android/FlutterFragment.html
 [using a `FlutterActivity`]: {{site.url}}/add-to-app/android/add-flutter-screen
 [`FlutterEngine`]: {{site.api}}/javadoc/io/flutter/embedding/engine/FlutterEngine.html
diff --git a/src/add-to-app/android/add-flutter-screen.md b/src/add-to-app/android/add-flutter-screen.md
index 17128b5b7a..9dcee10205 100644
--- a/src/add-to-app/android/add-flutter-screen.md
+++ b/src/add-to-app/android/add-flutter-screen.md
@@ -525,7 +525,7 @@ You now have a `FlutterActivity` with a transparent background.
 {{site.alert.end}}
 
 [`FlutterActivity`]: {{site.api}}/javadoc/io/flutter/embedding/android/FlutterActivity.html
-[`Activity`]: https://developer.android.com/reference/android/app/Activity
+[`Activity`]: {{site.android-dev}}/reference/android/app/Activity
 [`FlutterEngine`]: {{site.api}}/javadoc/io/flutter/embedding/engine/FlutterEngine.html
 [`FlutterEngineCache`]: {{site.api}}/javadoc/io/flutter/embedding/engine/FlutterEngineCache.html
 [`FlutterFragment`]: {{site.api}}/javadoc/io/flutter/embedding/android/FlutterFragment.html
diff --git a/src/add-to-app/android/add-flutter-view.md b/src/add-to-app/android/add-flutter-view.md
index 221c07d860..456f5bc5a4 100644
--- a/src/add-to-app/android/add-flutter-view.md
+++ b/src/add-to-app/android/add-flutter-view.md
@@ -32,7 +32,7 @@ class="mw-100" alt="Add Flutter View sample video">
 Unlike the guides for FlutterActivity and FlutterFragment, the FlutterView
 integration could be better demonstrated with a sample project.
 
-A sample project is at [{{site.github}}/flutter/samples/tree/main/add_to_app/android_view]({{site.github}}/flutter/samples/tree/main/add_to_app/android_view)
+A sample project is at [https://github.com/flutter/samples/tree/main/add_to_app/android_view]({{site.repo.samples}}/tree/main/add_to_app/android_view)
 to document a simple FlutterView integration where FlutterViews are used
 for some of the cells in a RecycleView list of cards as seen in the gif above.
 
@@ -50,7 +50,7 @@ in this case is being added to an Activity or Fragment in your application,
 you must recreate the connections manually. Otherwise, the [FlutterView]({{site.api}}/javadoc/io/flutter/embedding/android/FlutterView.html)
 will not render anything or have other missing functionalities.
 
-A sample [FlutterViewEngine]({{site.github}}/flutter/samples/blob/master/add_to_app/android_view/android_view/app/src/main/java/dev/flutter/example/androidView/FlutterViewEngine.kt)
+A sample [FlutterViewEngine]({{site.repo.samples}}/blob/master/add_to_app/android_view/android_view/app/src/main/java/dev/flutter/example/androidView/FlutterViewEngine.kt)
 class shows one such possible implementation of an application-specific
 connection between an Activity, a [FlutterView]({{site.api}}/javadoc/io/flutter/embedding/android/FlutterView.html)
 and a [FlutterEngine]({{site.api}}/javadoc/io/flutter/embedding/engine/FlutterEngine.html).
@@ -71,7 +71,7 @@ The reverse [detachFromFlutterEngine]({{site.api}}/javadoc/io/flutter/embedding/
 class must also be called to not leak resources when the FlutterView or Activity
 is no longer visible.
 
-In addition, see the remaining implementation in the [FlutterViewEngine]({{site.github}}/flutter/samples/blob/main/add_to_app/android_view/android_view/app/src/main/java/dev/flutter/example/androidView/FlutterViewEngine.kt)
+In addition, see the remaining implementation in the [FlutterViewEngine]({{site.repo.samples}}/blob/main/add_to_app/android_view/android_view/app/src/main/java/dev/flutter/example/androidView/FlutterViewEngine.kt)
 demo class or in the [FlutterActivityAndFragmentDelegate](https://cs.opensource.google/flutter/engine/+/master:shell/platform/android/io/flutter/embedding/android/FlutterActivityAndFragmentDelegate.java)
 to ensure a correct functioning of other features such as clipboards, system
 UI overlay, plugins etc.
diff --git a/src/add-to-app/android/project-setup.md b/src/add-to-app/android/project-setup.md
index 03c933d69a..3625e1e32d 100644
--- a/src/add-to-app/android/project-setup.md
+++ b/src/add-to-app/android/project-setup.md
@@ -42,7 +42,6 @@ IDE with the [Flutter plugin][] or manually.
   具体操作如下：
 
 <?code-excerpt title="MyApp/app/build.gradle"?>
-
 ```gradle
 android {
   //...
@@ -215,8 +214,8 @@ project as a sibling:
 并且你希望 Flutter 项目作为同级项目：
 
 ```terminal
-$ cd some/path/
-$ flutter create -t module --org com.example flutter_module
+cd some/path/
+flutter create -t module --org com.example flutter_module
 ```
 
 This creates a `some/path/flutter_module/` Flutter module project
@@ -293,12 +292,46 @@ app's `build.gradle` file, under the `android { }` block.
 android {
   //...
   compileOptions {
-    sourceCompatibility 11 # The minimum value
-    targetCompatibility 11 # The minimum value
+    sourceCompatibility 11 // The minimum value
+    targetCompatibility 11 // The minimum value
   }
 }
 ```
 
+#### Centralize repository settings
+{:.no_toc}
+
+Starting with Gradle 7, Android recommends using centralized repository
+declarations in `settings.gradle` instead of project or module level
+declarations in `build.gradle` files.
+
+Before attempting to connect your Flutter module project to your
+host Android app, make the following changes.
+
+1. Remove the `repositories` block in all of your app's `build.gradle` files.
+
+   ```groovy
+   // Remove the following block, starting on the next line
+       repositories {
+           google()
+           mavenCentral()
+       }
+   // ...to the previous line
+   ```
+
+1. Add the `dependencyResolutionManagement` displayed in this step to the
+   `settings.gradle` file.
+
+   ```groovy
+   dependencyResolutionManagement {
+     repositoriesMode.set(RepositoriesMode.PREFER_SETTINGS)
+     repositories {
+       google()
+       mavenCentral()
+     }
+   }
+   ```
+
 </div>
 </div>
 {% comment %} End: Tab panes. {% endcomment -%}
@@ -370,8 +403,8 @@ Let's assume you built a Flutter module at
 假设你在 `some/path/flutter_module` 下构建 Flutter 模块，执行如下命令：
 
 ```terminal
-$ cd some/path/flutter_module
-$ flutter build aar
+cd some/path/flutter_module
+flutter build aar
 ```
 
 Then, follow the on-screen instructions to integrate.
@@ -414,35 +447,32 @@ to find these files.
 
 要依赖 AAR，宿主应用必须能够找到这些文件。
 
-To do that, edit `app/build.gradle` in your host app
+To do that, edit `settings.gradle` in your host app
 so that it includes the local repository and the dependency:
 
-为此，需要在宿主应用程序中修改 `app/build.gradle` 文件，
+为此，需要在宿主应用程序中修改 `settings.gradle` 文件，
 使其包含本地存储库和上述依赖项：
 
-<?code-excerpt title="MyApp/app/build.gradle"?>
 ```gradle
-android {
-  // ...
-}
-
-repositories {
-  maven {
-    url 'some/path/flutter_module/build/host/outputs/repo'
-    // This is relative to the location of the build.gradle file
-    // if using a relative path.
-  }
-  maven {
-    url 'https://storage.googleapis.com/download.flutter.io'
+dependencyResolutionManagement {
+  repositoriesMode.set(RepositoriesMode.PREFER_SETTINGS)
+  repositories {
+    google()
+    mavenCentral()
+
+  // Add the new repositories starting on the next line...
+    maven {
+      url 'some/path/flutter_module/build/host/outputs/repo'
+      // This is relative to the location of the build.gradle file
+      // if using a relative path.
+    }
+    maven {
+      url 'https://storage.googleapis.com/download.flutter.io'
+    }
+  // ...to before this line  
   }
 }
 
-dependencies {
-  // ...
-  debugImplementation 'com.example.flutter_module:flutter_debug:1.0'
-  profileImplementation 'com.example.flutter_module:flutter_profile:1.0'
-  releaseImplementation 'com.example.flutter_module:flutter_release:1.0'
-}
 ```
 
 {{site.alert.important}}
@@ -558,7 +588,7 @@ Continue to the [Adding a Flutter screen to an Android app][] guide.
 [向 Android 应用中添加 Flutter 页面][Adding a Flutter screen to an Android app]
 继续进一步的集成。
 
-[`abiFilters`]: https://developer.android.com/reference/tools/gradle-api/4.2/com/android/build/api/dsl/Ndk#abiFilters:kotlin.collections.MutableSet
+[`abiFilters`]: {{site.android-dev}}/reference/tools/gradle-api/4.2/com/android/build/api/dsl/Ndk#abiFilters:kotlin.collections.MutableSet
 [Adding a Flutter screen to an Android app]: {{site.url}}/add-to-app/android/add-flutter-screen
 [Flutter plugin]: https://plugins.jetbrains.com/plugin/9212-flutter
 [local repository]: https://docs.gradle.org/current/userguide/declaring_repositories.html#sub:maven_local
diff --git a/src/add-to-app/index.md b/src/add-to-app/index.md
index 0b5edf3c56..2b877655b5 100644
--- a/src/add-to-app/index.md
+++ b/src/add-to-app/index.md
@@ -221,7 +221,7 @@ see our API usage guides at the following links:
 
   Android 平台的 Flutter 模块仅支持适配了 AndroidX 的应用。
 
-[add-to-app GitHub Samples repository]: {{site.github}}/flutter/samples/tree/main/add_to_app
+[add-to-app GitHub Samples repository]: {{site.repo.samples}}/tree/main/add_to_app
 [Android Archive (AAR)]: {{site.android-dev}}/studio/projects/android-library
 [Flutter plugins]: {{site.pub}}/flutter
 [`FlutterActivity`]: {{site.api}}/javadoc/io/flutter/embedding/android/FlutterActivity.html
diff --git a/src/add-to-app/ios/project-setup.md b/src/add-to-app/ios/project-setup.md
index 5c2ffef9f0..f8321e76bc 100644
--- a/src/add-to-app/ios/project-setup.md
+++ b/src/add-to-app/ios/project-setup.md
@@ -780,7 +780,7 @@ You can now [add a Flutter screen][] to your existing application.
 
 你现在可以 [添加一个 Flutter 页面][add a Flutter screen] 到你的既有应用中。
 
-[add_to_app code samples]: {{site.github}}/flutter/samples/tree/main/add_to_app
+[add_to_app code samples]: {{site.repo.samples}}/tree/main/add_to_app
 [add a Flutter screen]: {{site.url}}/add-to-app/ios/add-flutter-screen
 [Android Studio/IntelliJ]: {{site.url}}/tools/android-studio
 [build modes of Flutter]: {{site.url}}/testing/build-modes
diff --git a/src/apprentice-giveaway/index.md b/src/apprentice-giveaway/index.md
index bf032e2a6c..7bd3af9ec9 100644
--- a/src/apprentice-giveaway/index.md
+++ b/src/apprentice-giveaway/index.md
@@ -4,6 +4,8 @@ toc: false
 description: This event is ended.
 ---
 
+{% include docs/yt_shims.liquid %}
+
 {{site.alert.info}}
   The Flutter Apprentice event has ended.
   Thanks to all who participated!<br>
@@ -41,14 +43,14 @@ You can find replays of the book club videos on YouTube.
 
 
 [book club replay videos]: #videos
-[week 1 replay]: {{site.youtube-site}}/watch?v=FFZkjw1PVrY
-[week 2 replay]: {{site.youtube-site}}/watch?v=Llnq61KyOPg
-[week 3 replay]: {{site.youtube-site}}/watch?v=4Ea1mhkQRxQ
-[week 4 replay]: {{site.youtube-site}}/watch?v=jJ1W52f6CiM
-[week 5 replay]: {{site.youtube-site}}/watch?v=Vqs9qbbTeQ0
-[week 6 replay]: {{site.youtube-site}}/watch?v=vDOsMxTbfoI
-[week 7 replay]: {{site.youtube-site}}/watch?v=lBS5a1hVxPM
-[week 8 replay]: {{site.youtube-site}}/watch?v=R39i_xTXhpY
-[week 9 replay]: {{site.youtube-site}}/watch?v=xy-H1d2L78c
-[week 10 replay]: {{site.youtube-site}}/watch?v=rg5dYnCO2vo
+[week 1 replay]: {{yt-watch}}?v=FFZkjw1PVrY
+[week 2 replay]: {{yt-watch}}?v=Llnq61KyOPg
+[week 3 replay]: {{yt-watch}}?v=4Ea1mhkQRxQ
+[week 4 replay]: {{yt-watch}}?v=jJ1W52f6CiM
+[week 5 replay]: {{yt-watch}}?v=Vqs9qbbTeQ0
+[week 6 replay]: {{yt-watch}}?v=vDOsMxTbfoI
+[week 7 replay]: {{yt-watch}}?v=lBS5a1hVxPM
+[week 8 replay]: {{yt-watch}}?v=R39i_xTXhpY
+[week 9 replay]: {{yt-watch}}?v=xy-H1d2L78c
+[week 10 replay]: {{yt-watch}}?v=rg5dYnCO2vo
 [raywenderlich.com]: https://www.raywenderlich.com/books/flutter-apprentice/v1.0.ea2
diff --git a/src/assets/images/docs/get-started/macos/starter-app-hot-reload.png b/src/assets/images/docs/get-started/macos/starter-app-hot-reload.png
new file mode 100644
index 0000000000..39fe4da0c1
Binary files /dev/null and b/src/assets/images/docs/get-started/macos/starter-app-hot-reload.png differ
diff --git a/src/assets/images/docs/get-started/macos/starter-app.png b/src/assets/images/docs/get-started/macos/starter-app.png
new file mode 100644
index 0000000000..0b5888f60b
Binary files /dev/null and b/src/assets/images/docs/get-started/macos/starter-app.png differ
diff --git a/src/assets/images/docs/ui/layout/layout-demo-app.png b/src/assets/images/docs/ui/layout/layout-demo-app.png
new file mode 100644
index 0000000000..1447a36943
Binary files /dev/null and b/src/assets/images/docs/ui/layout/layout-demo-app.png differ
diff --git a/src/assets/images/docs/ui/layout/layout-sketch-add-text-block.svg b/src/assets/images/docs/ui/layout/layout-sketch-add-text-block.svg
new file mode 100644
index 0000000000..d38ed1945b
--- /dev/null
+++ b/src/assets/images/docs/ui/layout/layout-sketch-add-text-block.svg
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0.125q0 0.046875 0 0.09375l-3.515625 0l0 -0.5625l2.8125 0q-0.015625 -0.171875 -0.078125 -0.359375q-0.0625 -0.203125 -0.21875 -0.375q-0.140625 -0.171875 -0.375 -0.28125q-0.234375 -0.109375 -0.5625 -0.109375q-0.40625 0 -0.703125 0.203125q-0.28125 0.203125 -0.4375 0.5625q-0.15625 0.34375 -0.15625 0.796875q0 0.515625 0.203125 0.859375q0.203125 0.34375 0.515625 0.515625q0.3125 0.171875 0.65625 0.171875q0.453125 0 0.734375 -0.203125q0.296875 -0.21875 0.46875 -0.53125l0.578125 0.28125q-0.234375 0.453125 -0.6875 0.765625q-0.453125 0.296875 -1.125 0.296875zm2.22081 -0.125l1.625 -2.34375l0.078125 0l1.15625 -1.734375l0.796875 0l-1.59375 2.25l-0.046875 0l-1.234375 1.828125l-0.78125 0zm0.03125 -4.078125l0.765625 0l1.265625 1.8125l0.03125 0l1.59375 2.265625l-0.796875 0l-1.21875 -1.8125l-0.046875 0l-1.59375 -2.265625zm3.9740753 0l2.390625 0l0 0.609375l-2.390625 0l0 -0.609375zm0.71875 3.0l0 -4.15625l0.671875 0l0 4.0q0 0.3125 0.125 0.5q0.140625 0.171875 0.453125 0.171875q0.125 0 0.234375 -0.03125q0.125 -0.046875 0.203125 -0.109375l0 0.65625q-0.09375 0.0625 -0.21875 0.078125q-0.125 0.03125 -0.328125 0.03125q-0.515625 0 -0.828125 -0.296875q-0.3125 -0.296875 -0.3125 -0.84375z" fill-rule="nonzero"/></g></svg>
\ No newline at end of file
diff --git a/src/assets/js/archive.js b/src/assets/js/archive.js
index 082ce3b5e6..b774f05dd4 100644
--- a/src/assets/js/archive.js
+++ b/src/assets/js/archive.js
@@ -162,7 +162,7 @@ function replaceFilenameInCodeElements(archiveFilename) {
 
   codeElements.forEach((e) => {
     e.childNodes.forEach((node) => {
-      if (node.nodeType === Node.TEXT_NODE &&
+      if (node.nodeType === Node.ELEMENT_NODE &&
           node.textContent.includes(FILE_NAME_PREFIX)) {
         const text = node.textContent;
         node.textContent = text.replace(
diff --git a/src/assets/js/main.js b/src/assets/js/main.js
index 83b4202410..25f6f2159a 100644
--- a/src/assets/js/main.js
+++ b/src/assets/js/main.js
@@ -21,6 +21,10 @@ document.addEventListener("DOMContentLoaded", function(_) {
   setupTabs($('#add-to-app-android'), 'dev.flutter.add-to-app.android');
   setupTabs($('#add-to-app-android-deps'), 'dev.flutter.add-to-app.android.deps');
   setupTabs($('#ios-versions'), 'dev.flutter.ios-versions');
+  setupTabs($('#android-devices-vp'), 'dev.flutter.install.android-devices-vp');
+  setupTabs($('#android-studio-start'), 'dev.flutter.install.android-studio-start');
+  setupTabs($('#flutter-install'), 'dev.flutter.install.options');
+  setupTabs($('#ios-devices-vp'), 'dev.flutter.install.ios-devices-vp');
   setupTabs($('#china-os-tabs'), 'dev.flutter.china-os');
   setupTabs($('#china-os-dl-tabs'), 'dev.flutter.china-os-dl');
   setupTabs($('#china-os-pub-tabs'), 'dev.flutter.china-os-pub');
diff --git a/src/codelabs/index.md b/src/codelabs/index.md
index d444cd60a8..f03ed677c2 100644
--- a/src/codelabs/index.md
+++ b/src/codelabs/index.md
@@ -1,43 +1,21 @@
 ---
-title: Codelabs & workshops
-description: "Codelabs and workshops help you quickly get started programming Flutter."
-description: "Codelabs 和 workshops 是一种引导式的动手编码教程体验，帮助你更好的掌握 Flutter 编程技巧"
+title: Codelabs
+description: >-
+  Codelabs to help you quickly get started programming Flutter.
+description: >-
+  Codelabs 是一种引导式的动手编码教程体验，帮助你更好地掌握 Flutter 编程技巧
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 The Flutter codelabs provide a guided,
 hands-on coding experience. Some codelabs
 run in DartPad&mdash;no downloads required!
 
-Flutter 的 codelabs 是一份为新手准备的入门指南。一些 codelabs 运行在
-DartPad&mdash;上，这意味着你不需要下载任何东西就能够轻松学习。
-
-Flutter workshops are similar to the codelabs,
-but are instructor led and always use DartPad.
-The provided workshop link takes you to the relevant YouTube video,
-which tells you where to find the associated DartPad link.
-
-Flutter workshops 与 codelabs 类似，
-但由讲师指导并始终使用 DartPad。
-workshop 链接也会提供给你相关的 YouTube 视频，
-该视频会告诉你在哪里可以找到相关的 DartPad 链接。
-
-{{site.alert.secondary}}
-
-  **New workshops for Google I/O!**
-  You might want to check out the workshops
-  created by our Google Developer Experts (GDEs).
-  You can find them on the [Flutter community blog][].
-
-  **Google I/O 大会更新了一批新的 Flutter workshops**
-  或许你想要看看由 Google 开发者专家 (GDE) 编写的代码实践教程 (workshop)。
-  你可以在 [Flutter 社区博客][Flutter community blog] 中找到它们。
-  或者查看 [社区教程][] 中的文章了解如何《[使用 DartPad 制作代码实践][]》。
-
-{{site.alert.end}}
-
-[Flutter community blog]: {{site.medium}}/flutter-community/dartpad-workshops-from-flutter-gdes-622b52f70173
-[社区教程]: {{site.main-url}}/community/tutorials/
-[使用 DartPad 制作代码实践]: {{site.main-url}}/community/tutorials/how-to-use-dartpad-workshop
+Flutter 的 codelabs 是一份为新手准备的入门指南。
+一些 codelabs 运行在 DartPad&mdash;上，
+这意味着你不需要下载任何东西就能够轻松学习。
 
 ## Good for beginners
 
@@ -87,7 +65,7 @@ one of the following codelabs:
   但如果你下载并配置好了 Android 以及 iOS 的工具，
   那么整个应用同样也能运行在 Android 以及 iOS 的设备上。
 
-[Building your first Flutter app]: {{site.youtube-site}}/watch?v=8sAyPDLorek
+[Building your first Flutter app]: {{yt-watch}}?v=8sAyPDLorek
 [Your first Flutter app]: {{site.codelabs}}/codelabs/flutter-codelab-first
 [Write your first Flutter app on the web]: {{site.url}}/get-started/codelab-web
 
@@ -119,11 +97,11 @@ one of the following codelabs:
   并通过使用 sliver 增强它以创建奇特的自定义滚动效果。
 
 * [Dart null safety in Action][] (workshop)<br>
-  An instructor-led workshop based on the [Null safety codelab][]
-  on the dart.dev site.
+  An instructor-led workshop introducing the features
+  that enable Dart's null-safe type system.
 
   [Dart 空安全实战][Dart null safety in Action] (workshop)<br>
-  基于 dart.cn 站点上的 [空安全 codelab][Null safety codelab] 的讲师指导版 workshop。
+  由讲师指导的 workshop，介绍 Dart 空安全类型系统的特性。
 
 * [How to manage application states using inherited widgets][inherited-widget-ws] (workshop)<br>
   Learn how to manage the state of your app's data by
@@ -137,10 +115,9 @@ one of the following codelabs:
   管理应用数据的状态。
 
 [Records and Patterns in Dart 3]: {{site.codelabs}}/codelabs/dart-patterns-records
-[Dart null safety in Action]: https://www.bilibili.com/video/BV1tK4y1u76N/
-[inherited-widget-ws]: https://www.bilibili.com/video/BV1Wv411W7yF/
+[Dart null safety in Action]: {{yt-watch}}?v=HdKwuHQvArY
+[inherited-widget-ws]: {{yt-watch}}?v=LFcGPS6cGrY
 [low-level state management]: {{site.url}}/data-and-backend/state-mgmt/options#inheritedwidget--inheritedmodel
-[Null safety codelab]: {{site.dart-site}}/codelabs/null-safety
 
 ## Designing a Flutter UI
 
@@ -154,7 +131,7 @@ like layout and animations:
 
 * [How to debug layout issues with the Flutter Inspector][]<br>
   Not an official codelab, but step-by-step instructions on
-  how to debug common layout problems using the Flutter 
+  how to debug common layout problems using the Flutter
   Inspector and Layout Explorer.
   
   [如何使用 Flutter Inspector 调试布局][How to debug layout issues with the Flutter Inspector]<br>
@@ -229,8 +206,8 @@ like layout and animations:
   至此我们就结束了这个电子商务应用的构建
 
 * [Adaptive Apps in Flutter][]<br>
-  Learn how to build a Flutter app that adapts to the 
-  platform that it's running on, be that Android, iOS, 
+  Learn how to build a Flutter app that adapts to the
+  platform that it's running on, be that Android, iOS,
   the web, Windows, macOS, or Linux.
 
   [使用 Flutter 构建自适应应用][Adaptive Apps in Flutter]<br>
@@ -248,12 +225,11 @@ like layout and animations:
   了解如何构建一个使用 `flutter_animate`、片段着色器和粒子场的 Flutter 应用。
   你将构建一个用户界面，它会唤起我们在不编码时都喜欢看的科幻电影和电视节目。
 
-
 [Building next generation UIs in Flutter]: {{site.codelabs}}/codelabs/flutter-next-gen-uis#0
 [Adaptive Apps in Flutter]: {{site.codelabs}}/codelabs/flutter-adaptive-app
 [animations]: {{site.pub}}/packages/animations
 [Building Beautiful Transitions with Material Motion for Flutter]: {{site.codelabs}}/codelabs/material-motion-flutter
-[Building scrolling experiences in Flutter]: https://www.bilibili.com/video/BV11f4y187gV/
+[Building scrolling experiences in Flutter]: {{bili-video}}/BV11f4y187gV/
 [How to debug layout issues with the Flutter Inspector]: {{site.flutter-medium}}/how-to-debug-layout-issues-with-the-flutter-inspector-87460a7b9db
 [Implicit animations]: {{site.url}}/codelabs/implicit-animations
 [MDC-101 Flutter: Material Components (MDC) Basics]: {{site.codelabs}}/codelabs/mdc-101-flutter
@@ -268,7 +244,7 @@ like layout and animations:
 [MDC-103 Flutter: Material Theming with Color, Shape, Elevation, and Type-cn]: {{site.codelabs}}/codelabs/mdc-103-flutter-cn
 [MDC-104 Flutter: Material Advanced Components-cn]: {{site.codelabs}}/codelabs/mdc-104-flutter-cn
 
-## Using Flutter with...
+## Using Flutter with
 
 ## 在 Flutter 应用中集成
 
@@ -346,7 +322,7 @@ Learn how to use Flutter with other technologies.
   the Auth and Firestore emulators.
 
 [Add a user authentication flow to a Flutter app using FirebaseUI]: {{site.firebase}}/codelabs/firebase-auth-in-flutter-apps
-[firebase-ws]: {{site.youtube-site}}/watch?v=wUSkeTaBonA
+[firebase-ws]: {{yt-watch}}?v=wUSkeTaBonA
 [Get to know Firebase for Flutter]: {{site.firebase}}/codelabs/firebase-get-to-know-flutter
 [Local development for your Flutter apps using the Firebase Emulator Suite]: {{site.firebase}}/codelabs/get-started-firebase-emulators-and-flutter
 
@@ -362,7 +338,7 @@ Learn how to use Flutter with other technologies.
 
 * [Train a comment-spam detection model with TensorFlow Lite Model Maker][]<br>
   Learn how to install the TensorFlow Lite Model Maker with Colab,
-  How to use a data loader, and how to build a model.
+  how to use a data loader, and how to build a model.
 
 [Create a custom text-classification model with TensorFlow Lite Model Maker]: {{site.developers}}/codelabs/classify-text-update-tensorflow-serving
 [Create a Flutter app to classify texts with TensorFlow]: {{site.developers}}/codelabs/classify-texts-flutter-tensorflow-serving
@@ -380,7 +356,7 @@ Learn how to use Flutter with other technologies.
   在应用里显示谷歌地图，接收网络传回的数据，在地图上显示一个标示。
 
 * [Adding WebView to your Flutter app][]<br>
-  With the WebView Flutter plugin you can add a WebView 
+  With the WebView Flutter plugin you can add a WebView
   widget to your Android or iOS Flutter app.
 
   [为你的 Flutter 应用添加 WebView][Adding WebView to your Flutter app]<br>
@@ -404,27 +380,45 @@ Learn how to use Flutter with other technologies.
   学习如何构建可以回答有关 Dialogflow 工具的最常见问题的移动式常见问题解答机器人。
   终端用户可以通过移动设备的内置麦克风与文本界面交互或流式传输语音交互。
 
-* [Building a game with Flutter and Flame][]<br> 
-  Learn how to create a platform game (featuring
-  Dash or Sparky), using the Flame package.
+* [Introduction to Flame with Flutter][]<br>
+  Build a Breakout clone using the Flame 2D game engine and
+  embed it in a Flutter wrapper. You will use Flame's Effects
+  to animate and remove components, along with the `google_fonts` and
+  `flutter_animate` packages, to make the whole game look well designed.
 
-* [Using FFI in a Flutter plugin][]<br> 
+  [Flutter Flame 入门][Introduction to Flame with Flutter]<br>
+  使用 Flame 2D 游戏引擎制作一个 Breakout 克隆版，
+  并将其嵌入 Flutter wrapper 中。
+  你将使用 Flame 的 Effects 制作动画和组件的移除，
+  同时使用 `google_fonts` 和 `flutter_animate` package，
+  让整个游戏看起来有着精良的设计。
+
+* [Using FFI in a Flutter plugin][]<br>
   Learn how to use Dart's FFI (foreign function interface)
   library, ffigen, allowing you to leverage
   existing native libraries that provide a
   C interface.
 
+  [在 Flutter 插件中使用 FFI][Using FFI in a Flutter plugin]<br>
+  了解如何使用 Dart 的 FFI（外部函数接口）库和 ffigen，
+  让你可以使用提供了 C 语言接口的现有原生库。
+
 * [Create haikus about Google products with the PaLM API and Flutter][]<br>
-  Learn how to build an app that uses the PaLM API to 
-  generate haikus based on Google product names. The 
-  PaLM API gives you access to Google's 
-  state-of-the-art large language models. 
+  Learn how to build an app that uses the PaLM API to
+  generate haikus based on Google product names. The
+  PaLM API gives you access to Google's
+  state-of-the-art large language models.
+
+  [使用 PaLM API 和 Flutter 创作有关 Google 产品的俳句 (haiku)][Create haikus about Google products with the PaLM API and Flutter]<br>
+  了解如何构建一个使用 PaLM API 并
+  根据 Google 产品名称生成俳句 (haiku) 的应用。
+  PaLM API 可让你访问 Google 最先进的大语言模型。
 
 [Adding Google Maps to a Flutter app]: {{site.codelabs}}/codelabs/google-maps-in-flutter
 [Adding WebView to your Flutter app]: {{site.codelabs}}/codelabs/flutter-webview
 [Build voice bots for Android with Dialogflow and Flutter]: {{site.codelabs}}/codelabs/dialogflow-flutter
-[Build voice bots for mobile with Dialogflow and Flutter]: https://www.bilibili.com/video/BV1pX4y1A7SH/
-[Building a game with Flutter and Flame]: {{site.codelabs}}/codelabs/flutter-flame-game
+[Build voice bots for mobile with Dialogflow and Flutter]: {{bili-video}}/BV1pX4y1A7SH/
+[Introduction to Flame with Flutter]: {{site.codelabs}}/codelabs/flutter-flame-brick-breaker
 [Using FFI in a Flutter plugin]: {{site.codelabs}}/codelabs/flutter-ffigen
 [Create haikus about Google products with the PaLM API and Flutter]: {{site.codelabs}}/haiku-generator
 
@@ -516,9 +510,9 @@ iOS、Android、Web 和桌面端。
   小部件会展示在首页、锁屏页以及今日预览中。
 
 [Building a Cupertino app with Flutter]: {{site.codelabs}}/codelabs/flutter-cupertino
-[home-screen]:   {{site.codelabs}}/flutter-home-screen-widgets
+[home-screen]: {{site.codelabs}}/flutter-home-screen-widgets
 [How to write a Flutter plugin]: {{site.codelabs}}/codelabs/write-flutter-plugin
-[provider]: {{site.pub}}/packages/provider
+[provider]: {{site.pub-pkg}}/provider
 [Using a plugin with a Flutter web app]: {{site.codelabs}}/codelabs/web-url-launcher
 [Write a Flutter desktop application]: {{site.codelabs}}/codelabs/flutter-github-client
 
@@ -548,7 +542,7 @@ We also recommend the following online class:
 {{site.alert.note}}
 
   If you have trouble viewing any of the codelabs
-  on [`codelabs.developers.google.com`]({{site.codelabs}}), try 
+  on [`codelabs.developers.google.com`]({{site.codelabs}}), try
   [this mirror of the Flutter codelabs][].
 
   如果你在 [`codelabs.developers.google.com`](https://codelabs.developers.google.com/) 浏览这些 codelabs 的时候遇到问题，
diff --git a/src/community/china/_pub-settings.md b/src/community/china/_pub-settings.md
index 0c63eec8bd..b598b6d26b 100644
--- a/src/community/china/_pub-settings.md
+++ b/src/community/china/_pub-settings.md
@@ -6,13 +6,14 @@
   role="tabpanel" aria-labelledby="{{id}}-tab" markdown="1">
 
 1. Configure a proxy.
-   To configure a proxy, check out the [Dart documentation on proxies][].
+   To configure a proxy, check out the
+   [Dart documentation on proxies]({{site.dart-site}}/tools/pub/troubleshoot#pub-get-fails-from-behind-a-corporate-firewall).
 
    配置代理。
-   要配置代理，请查阅 [Dart 关于代理的文档][Dart documentation on proxies]。
+   要配置代理，请查阅 [Dart 关于代理的文档]({{site.dart-site}}/tools/pub/troubleshoot#pub-get-fails-from-behind-a-corporate-firewall)。
 
   {% comment %}
-  From https://github.com/flutter/website/issues/2556#issuecomment-481566476
+  From <https://github.com/flutter/website/issues/2556#issuecomment-481566476>
   {% endcomment %}
 
 1. Verify that your `PUB_HOSTED_URL` environment variable is either unset
diff --git a/src/community/china/index.md b/src/community/china/index.md
index 7ce5dec56e..ba873caa29 100644
--- a/src/community/china/index.md
+++ b/src/community/china/index.md
@@ -137,7 +137,7 @@ you need to be able to access both Google Auth and the `pub.dev` site.
 才能将 package 发布到 `pub.dev`。
 
 {% comment %}
-From https://github.com/flutter/website/pull/9338#discussion_r1328077020
+From <https://github.com/flutter/website/pull/9338#discussion_r1328077020>
 {% endcomment %}
 
 To enable access to `pub.dev`:
@@ -168,8 +168,6 @@ To learn more about publishing packages, check out the
 了解关于发布 package 的更多信息，
 请查阅 [关于发布 package 的 Dart 文档][Dart documentation on publishing packages]。
 
-[Dart documentation on proxies]: {{site.dart-site}}/tools/pub/troubleshoot#pub-get-fails-from-behind-a-corporate-firewall
-
 [Dart documentation on publishing packages]: {{site.dart-site}}/tools/pub/publishing
 
 ## Known, trusted community-run mirror sites
@@ -291,4 +289,4 @@ for assistance.
 
 如果在镜像使用中有任何问题，欢迎通过邮件与我们联系：cfug-dev@googlegroups.com。
 非常感谢所有帮助 Flutter 在国内维护社区基础设施建设资源的社区和公司，查看
-[详细致谢名单]({{site.main-url}}/about)。
\ No newline at end of file
+[详细致谢名单]({{site.main-url}}/about)。
diff --git a/src/community/tutorials/flutter-state-management-with-mobx.md b/src/community/tutorials/flutter-state-management-with-mobx.md
index f89841b6f8..bc7b49df07 100644
--- a/src/community/tutorials/flutter-state-management-with-mobx.md
+++ b/src/community/tutorials/flutter-state-management-with-mobx.md
@@ -3,6 +3,8 @@ title: Flutter 状态管理：使用 MobX
 toc: true
 ---
 
+{% include docs/bili_shims.liquid %}
+
 ![](https://devrel.andfun.cn/devrel/posts/2021/04/2fbde82783576.jpg)
 
 _文 / Paul Halliday, developer.school 创始人_
@@ -10,7 +12,7 @@ _文 / Paul Halliday, developer.school 创始人_
 众所周知，状态管理是每个软件项目都需要持续迭代更新的方向。它并不是一个「一次性」的工作，
 而需要不断确保你遵循的最佳实践能够让你的工程保持良好的可维护性。
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=62886932&bvid=BV1Gt411K7JD&cid=327927635&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=62886932&bvid=BV1Gt411K7JD&cid=327927635&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 要在 Flutter 中高效地使用 MobX ，需要遵循以下原则：
 
diff --git a/src/cookbook/design/fonts.md b/src/cookbook/design/fonts.md
index 9d2f64e781..da62ccb9c6 100644
--- a/src/cookbook/design/fonts.md
+++ b/src/cookbook/design/fonts.md
@@ -7,365 +7,478 @@ tags: cookbook, 实用教程, 设计
 keywords: Material Design 效果, 字体, 自定义字体, Flutter使用谷歌字体
 ---
 
+{% include docs/yt_shims.liquid %}
+
 <?code-excerpt path-base="cookbook/design/fonts/"?>
 
+{{site.alert.secondary}}
+
+## What you'll learn
+
+## 你将学到什么
+
+* How to choose a font.
+
+  如何选择字体。
+
+* How to import font files.
+
+  如何导入字体文件。
+
+* How to set a font as a default.
+
+  如何设置默认字体。
+
+* How to use a font in a given widget.
+
+  如何在特定 widget 中使用字体。
+
+{{site.alert.end}}
+
 Although Android and iOS offer high quality system fonts,
-one of the most common requests from designers is for custom fonts.
-For example, you might have a custom-built font from a designer,
+designers want support for custom fonts.
+You might have a custom-built font from a designer,
 or perhaps you downloaded a font from [Google Fonts][].
 
 尽管 Android 和 iOS 已经提供了一套高质量系统字体，
-然而通常设计师还是会要求使用自定义字体。
-例如，你可能需要使用设计师提供的自定义字体，或者从
+但设计师还是希望能支持自定义字体。
+你可能需要使用设计师提供的定制字体，或者从
 [Google Fonts][] 下载的字体。
 
-{{site.alert.note}}
+A typeface is the collection of glyphs or shapes that comprise
+a given style of lettering.
+A font is one representation of that typeface at a given weight or variation.
+Roboto is a typeface and Roboto Bold is a font.
 
-  Check out the [google_fonts][] package for direct access
-  to over 1,000 open-sourced font families.
+字体是指构成特定字体风格的字形或形状的集合。
+也是在特定字重或变化下的一种表现形式。
+Roboto 是一种字体，Roboto Bold 也是一种字体。
 
-  查看 [google_fonts][] 库，
-  你将可以直接访问 1000 个以上的开源字体。
+Flutter lets you apply a custom font across an entire app or to individual widgets.
+This recipe creates an app that uses custom fonts with the following steps.
 
-  <iframe class="full-width" src="{{site.youtube-site}}/embed/8Vzv2CdbEY0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
-{{site.alert.end}}
+Flutter 可以很方便地使用自定义字体，不仅能够将其用于整个应用里，
+还可以用在某个单独的 widget 中。
+本指南参照下面的步骤使用自定义字体：
 
-{{site.alert.note}}
+1. Choose your fonts.
 
-  For another approach to using custom fonts, 
-  especially if you want to re-use one font over multiple projects, 
-  see [Export fonts from a package][].
+   选择你的字体。
 
-  这里还有另一个关于使用自定义字体的教程，
-  如果你想要在多项目中重用一份字体的情况下，
-  请参考 [将字体导出到 package][Export fonts from a package]。
+1. Import the font files.
 
-{{site.alert.end}}
+   导入字体文件。
 
-Flutter works with custom fonts and you can apply a custom
-font across an entire app or to individual widgets.
-This recipe creates an app that uses custom fonts with
-the following steps:
+1. Declare the font in the pubspec.
 
-Flutter 可以很方便的使用自定义字体，不仅能够将其用于整个应用里，
-还可以用在某个单独的 widget 中。
-请参照下面的步骤使用自定义字体：
+   在 `pubspec.yaml` 中声明字体。
+
+1. Set a font as the default.
 
-  1. Import the font files.
+   设置默认字体。
 
-     导入字体文件。
+1. Use a font in a specific widget.
 
-  2. Declare the font in the pubspec.
+   将字体用于特定 widget。
 
-     在 `pubspec.yaml` 中声明字体。
+You don't need to follow each step as you go. 
+The guide offers completed example files at the end.
 
-  3. Set a font as the default.
+你不需要按照每个步骤进行操作。
+指南最后提供了已完成的示例文件。
 
-     设置默认字体。
+{{site.alert.note}}
 
-  4. Use a font in a specific widget.
+  This guide makes the following presumptions:
   
-     将字体用于特定 widget。
+  1. You've [set up your Flutter environment][].
+  1. You've [created a new Flutter app][new-flutter-app] named `custom_fonts`.
+     If you haven't completed these steps yet, do so before continuing
+     with this guide.
+  1. You're performing the provided commands in a macOS or Linux shell
+     and using `vi`. You can substitute any text editor for `vi`.
+     Windows users should use the appropriate commands and paths when
+     performing the steps.
+  1. You're adding the Raleway and RobotoMono fonts to your Flutter app.
 
-## 1. Import the font files
+{{site.alert.end}}
 
-## 1. 导入字体文件
+[set up your Flutter environment]: {{site.url}}/get-started/install
+[new-flutter-app]: {{site.url}}/get-started/test-drive
 
-To work with a font, import the font files into the project.
-It's common practice to put font files in a `fonts` or `assets`
-folder at the root of a Flutter project.
+## Choose a font
 
-要使用字体，你需要将字体文件导入到项目中。
-常见的做法是将字体文件放在项目根目录下的 `fonts` 或者 `assets` 文件夹中。
+## 字体的选择
 
-For example, to import the Raleway and Roboto Mono font
-files into a project, the folder structure might look like this:
+Your choice of font should be more than a preference.
+Consider which file formats work with Flutter and
+how the font could affect design options and app performance.
 
-例如，如果你想要在项目中导入 Raleway 和 Roboto Mono 字体，
-文件夹结构会像下面这样：
+字体的选择不应仅仅是一种偏好。
+请考虑哪些文件格式可与 Flutter 配合使用，
+以及字体会如何影响设计和应用的性能。
 
-```
-awesome_app/
-  fonts/
-    Raleway-Regular.ttf
-    Raleway-Italic.ttf
-    RobotoMono-Regular.ttf
-    RobotoMono-Bold.ttf
-```
-
-### Supported font formats
+#### Pick a supported font format
 
-### 已支持的字体格式
+#### 选择已支持的字体格式
 
 Flutter supports the following font formats:
 
 Flutter 支持以下的字体格式：
 
-* `.ttc`
-* `.ttf`
-* `.otf`
+* OpenType font collections: `.ttc`
 
-Flutter does not support `.woff` and `.woff2` fonts for all platforms.
+  OpenType 字体集：`.ttc`
 
-Flutter 在所有平台上均尚未支持 `.woff` 和 `.woff2` 字体。
+* TrueType fonts: `.ttf`
 
-## 2. Declare the font in the pubspec
+  TrueType 字体：`.ttf`
 
-## 2. 在 `pubspec.yaml` 中声明字体
+* OpenType fonts: `.otf`
 
-Once you've identified a font, tell Flutter where to find it.
-You can do this by including a font definition in the `pubspec.yaml` file.
+  OpenType 字体：`.otf`
 
-现在你已经有一个字体可以使用，接下来则需要告诉 Flutter 它在哪。
-你可以在 `pubspec.yaml` 中像下面这样声明：
+Flutter does not support fonts in the Web Open Font Format,
+`.woff` and `.woff2`, on desktop platforms.
 
-```yaml
-flutter:
-  fonts:
-    - family: Raleway
-      fonts:
-        - asset: fonts/Raleway-Regular.ttf
-        - asset: fonts/Raleway-Italic.ttf
-          style: italic
-    - family: RobotoMono
-      fonts:
-        - asset: fonts/RobotoMono-Regular.ttf
-        - asset: fonts/RobotoMono-Bold.ttf
-          weight: 700
-```
+Flutter 在桌面平台上不支持 Web Open 字体格式（`.woff` 和 `.woff2`）
+的字体。
 
-### `pubspec.yaml` option definitions
+#### Choose fonts for their specific benefits
 
-### `pubspec.yaml` 选项的定义
+Few sources agree on what a font file type is or which uses less space.
+The key difference between font file types involves how the format 
+encodes the glyphs in the file.
+Most TrueType and OpenType font files have similiar capabilities as they
+borrowed from each other as the formats and fonts improved over time.
 
-The `family` determines the name of the font, which you use in the
-[`fontFamily`][] property of a [`TextStyle`][] object.
+Which font you should use depends on the following considerations.
 
-`family` 属性决定了字体的名称，
-你将会在 [`TextStyle`][] 的 [`fontFamily`][] 属性中用到。
+* How much variation you need for fonts in your app?
+* How much file size you can accept fonts using in your app?
+* How many languages you need to support in your app?
 
-The `asset` is a path to the font file,
-relative to the `pubspec.yaml` file.
-These files contain the outlines for the glyphs in the font.
-When building the app,
-these files are included in the app's asset bundle.
-
-`asset` 是字体文件对于 `pubspec.yaml` 文件的相对路径。
-这些文件包含了字体中字形的轮廓。
-构建应用时，这些文件将会被包含在应用程序的资源包中。
-
-A single font can reference many different files with different
-outline weights and styles:
-
-单个字体可以引用多个不同轮廓字重及风格的文件：
-
-  * The `weight` property specifies the weight of the outlines in
-    the file as an integer multiple of 100, between 100 and 900.
-    These values correspond to the [`FontWeight`][] and can be used in the
-    [`fontWeight`][fontWeight property] property of a [`TextStyle`][] object. 
-    For example, if you want to use the `RobotoMono-Bold` font defined above, 
-    you would set `fontWeight` to `FontWeight.w700` in your `TextStyle`.
-
-    `weight` 属性指定了文件中字体轮廓的字重为 100 的整数倍，
-    并且范围在 100 和 900 之间。
-    这些值对应 [`FontWeight`][fontWeight property] 并能够在 [`TextStyle`][] 
-    对象的 [`fontWeight`][] 属性上使用。
-    例如，如果你想使用上面定义的 `RobotoMono-Bold` 字体，
-    你可以在 `TextStyle` 中将 `fontWeight` 设置为 `FontWeight.w700`。
-    
-    Note that defining the `weight` property does not
-    override the actual weight of the font. You would not be able to
-    access `RobotoMono-Bold` with `FontWeight.w100`, even if its `weight`
-    was set to 100.
-
-    需要注意的是，定义 `weight` 属性不会覆盖字体的实际粗细。
-    你无法使用 `FontWeight.w100` 访问 `RobotoMono-Bold`，
-    即使其 `weight` 设置为了 100。
-
-  * The `style` property specifies whether the outlines in the file are
-    `italic` or `normal`. 
-    These values correspond to the [`FontStyle`][] and can be used in the
-    [`fontStyle`][fontStyle property] property of a [`TextStyle`][] object. 
-    For example, if you want to use the `Raleway-Italic` font defined above, 
-    you would set `fontStyle` to `FontStyle.italic` in your `TextStyle`.
-
-    `style` 属性指定文件中字体的轮廓是否为 `italic` 或 `normal`。
-    这些值对应 [`FontStyle`][fontStyle property] 并能够在 [`TextStyle`][]
-    对象的 [`fontStyle`][] 属性上使用。例如，如果你想使用上面定义的 
-    `Raleway-Italic` 字体，你可以在 `TextStyle` 中
-    将 `fontStyle` 设置为 `FontStyle.italic`。
-    
-    Note that defining the `style` property does not
-    override the actual style of the font; You would not be able to
-    access `Raleway-Italic` with `FontStyle.normal`, even if its `style`
-    was set to normal.
-
-    需要注意的是，定义 `style` 属性不会更改字体的实际样式；
-    你无法使用 `FontStyle.normal` 访问 `Raleway-Italic，
-    即使其 `style` 设置为了 normal。
-
-## 3. Set a font as the default
-
-## 3. 设置默认字体
-
-You have two options for how to apply fonts to text: as the default font
-or only within specific widgets.
-
-关于如何应用这些字体，你有两种选择：
-将其设为默认字体，或者仅在某些特定 widget 中使用。
-
-To use a font as the default, set the `fontFamily` property
-as part of the app's `theme`. The value provided to
-`fontFamily` must match the `family`
-name declared in the `pubspec.yaml`.
-
-如果你想要设为默认字体，
-请将 `fontFamily` 设为应用（全局）`theme` 的属性的一部分。
-提供的 `fontFamily` 的值必须与 `pubspec.yaml` 中声明的名称相匹配。
+Research what options a given font offers,
+like more than one weight or style per font file,
+[variable font capability][variable-fonts],
+the availabilty of multiple font files for a multiple font weights,
+or more than one width per font.
 
-<?code-excerpt "lib/main.dart (MaterialApp)"?>
-```dart
-return MaterialApp(
-  title: 'Custom Fonts',
-  // Set Raleway as the default app font.
-  theme: ThemeData(fontFamily: 'Raleway'),
-  home: const MyHomePage(),
-);
-```
+Choose the typeface or font family that meets the design needs of your app.
 
-For more information on themes,
-see the [Using Themes to share colors and font styles][] recipe.
+{{site.alert.secondary}}
+  To learn how to get direct access to over 1,000 open-sourced font families,
+  check out the [google_fonts][] package.
 
-有关主题的更多信息，请参阅文档：
-[使用 Themes 统一颜色和字体风格][Using Themes to share colors and font styles]。
+  <iframe class="full-width" src="{{yt-embed}}/8Vzv2CdbEY0" title="Learn about the google_fonts Flutter Package" {{yt-set}}></iframe>
 
-## 4. Use the font in a specific widget
+  To learn about another approach to using custom fonts that allows you to
+  re-use one font over multiple projects,
+  check out [Export fonts from a package][].
+{{site.alert.end}}
 
-## 4. 将字体用于特定 Widget
+## Import the font files
 
-If you want to apply the font to a specific widget,
-such as a `Text` widget,
-provide a [`TextStyle`][] to the widget.
+To work with a font, import its font files into your Flutter project.
 
-如果你希望在特定 Widget（例如 `Text` Widget）中使用该字体，可以通过
-[`TextStyle`][] 中进行指定。
+To import font files, perform the following steps.
 
-In this example, apply the RobotoMono font to a single `Text` widget.
-Once again, the `fontFamily` must match the `family` name declared in the
-`pubspec.yaml`.
+1. If necessary, to match the remaining steps in this guide,
+   change the name of your Flutter app to `custom_fonts`.
 
-在这个例子中，我们将在一个 `Text` Widget 上使用 RobotoMono 字体。
-同样的，这里的 fontFamily 的值必须与 pubspec.yaml 中声明的值相匹配。
+   ```terminal
+   $ mv /path/to/my_app /path/to/custom_fonts
+   ```
 
-<?code-excerpt "lib/main.dart (Text)"?>
-```dart
-child: Text(
-  'Roboto Mono sample',
-  style: TextStyle(fontFamily: 'RobotoMono'),
-),
+1. Navigate to the root of your Flutter project.
+
+   ```terminal
+   $ cd /path/to/custom_fonts
+   ```
+
+1. Create a `fonts` directory at the root of your Flutter project.
+
+   ```terminal
+   $ mkdir fonts
+   ```
+
+1. Move or copy the font files in a `fonts` or `assets`
+   folder at the root of your Flutter project.
+
+   ```terminal
+   $ cp ~/Downloads/*.ttf ./fonts
+   ```
+
+The resulting folder structure should resemble the following:
+
+```nocode
+custom_fonts/
+|- fonts/
+  |- Raleway-Regular.ttf
+  |- Raleway-Italic.ttf
+  |- RobotoMono-Regular.ttf
+  |- RobotoMono-Bold.ttf
 ```
 
-### TextStyle
+## Declare the font in the pubspec.yaml file
+
+After you've downloaded a font,
+include a font definition in the `pubspec.yaml` file.
+This font definition also specifies which font file should be used to
+render a given weight or style in your app.
+
+### Define fonts in the `pubspec.yaml` file
+
+To add font files to your Flutter app, complete the following steps.
+
+1. Open the `pubspec.yaml` file at the root of your Flutter project.
+
+   ```terminal
+   $ vi pubspec.yaml
+   ```
+
+1. Paste the following YAML block after the `flutter` declaration.
+
+   ```yaml
+     fonts:
+       - family: Raleway
+         fonts:
+           - asset: fonts/Raleway-Regular.ttf
+           - asset: fonts/Raleway-Italic.ttf
+             style: italic
+       - family: RobotoMono
+         fonts:
+           - asset: fonts/RobotoMono-Regular.ttf
+           - asset: fonts/RobotoMono-Bold.ttf
+            weight: 700
+   ```
+
+This `pubspec.yaml` file defines the italic style for the
+`Raleway` font family as the `Raleway-Italic.ttf` font file.
+When you you set `style: TextStyle(fontStyle: FontStyle.italic)`,
+Flutter swaps `Raleway-Regular` with `Raleway-Italic`.
+
+The `family` value sets the name of the typeface.
+You use this name in the [`fontFamily`][] property of a [`TextStyle`][] object.
+
+The value of an `asset` is a relative path from the `pubspec.yaml` file
+to the font file.
+These files contain the outlines for the glyphs in the font.
+When building the app,
+Flutter includes these files in the app's asset bundle.
+
+### Include font files for each font
+
+Different typefaces implement font files in different ways.
+If you need a typeface with a variety of font weights and styles,
+choose and import font files that represent that variety. 
+
+When you import a font file that doesn't include either multiple fonts
+within it or variable font capabilities,
+don't use the `style` or `weight` property to adjust how they display.
+If you do use those properties on a regular font file,
+Flutter attempts to _simulate_ the look.
+The visual result will look quite different from using the correct font file. 
+
+### Set styles and weights with font files
+
+When you declare which font files represent styles or weights of a font,
+you can apply the `style` or `weight` properties.
+
+#### Set font weight
 
-### 字体样式
+The `weight` property specifies the weight of the outlines in
+the file as an integer multiple of 100, between 100 and 900.
+These values correspond to the [`FontWeight`][] and can be used in the
+[`fontWeight`][fontWeight property] property of a [`TextStyle`][] object.
 
-If a [`TextStyle`][] object specifies a weight
-or style for which there is no exact font file,
-the engine uses one of the more generic files
-for the font and attempts to extrapolate outlines
-for the requested weight and style.
+In the `pubspec.yaml` shown in this guide,
+you defined `RobotoMono-Bold` as the `700` weight of the font family.
+To use the `RobotoMono-Bold` font that you added to your app, 
+set `fontWeight` to `FontWeight.w700` in your `TextStyle` widget.
 
-如若 [`TextStyle`][] 指定的字体样式缺少相应的字体文件，
-Engine 则会使用一个更加通用的字体文件，
-并尝试推断所请求的字体 weight 和样式的轮廓。
+If hadn't added `RobotoMono-Bold` to your app,
+Flutter attempts to make the font look bold.
+The text then might appear to be somewhat darker.
 
-## Complete example
+You can't use the `weight` property to override the weight of the font.
+You can't set `RobotoMono-Bold` to any other weight than `700`.
+If you set `TextStyle(fontFamily: 'RobotoMono', fontWeight: FontWeight.w900)`,
+the displayed font would still render as however bold `RobotoMono-Bold` looks.
 
-## 完整样例
+#### Set font style
 
-### Fonts
+The `style` property specifies whether the glyphs in the font file display as
+either `italic` or `normal`.
+These values correspond to the [`FontStyle`][].
+You can use these styles in the [`fontStyle`][fontStyle property] property
+of a [`TextStyle`][] object.
 
-### 字体
+In the `pubspec.yaml` shown in this guide,
+you defined `Raleway-Italic` as being in the `italic` style. 
+To use the `Raleway-Italic` font that you added to your app, 
+set `style: TextStyle(fontStyle: FontStyle.italic)`.
+Flutter swaps `Raleway-Regular` with `Raleway-Italic` when rendering.
 
-The Raleway and RobotoMono fonts were downloaded from
-[Google Fonts][].
+If hadn't added `Raleway-Italic` to your app,
+Flutter attempts to make the font _look_ italic.
+The text then might appear to be leaning to the right.
 
-Raleway 和 RobotoMono 字体是从 [Google Fonts][] 下载的。
+You can't use the `style` property to override the glyphs of a font.
+If you set `TextStyle(fontFamily: 'Raleway', fontStyle: FontStyle.normal)`,
+the displayed font would still render as italic.
+The `regular` style of an italic font _is_ italic.
 
-### `pubspec.yaml`
+## Set a font as the default
 
-```yaml
-name: custom_fonts
-description: An example of how to use custom fonts with Flutter
+To apply a font to text, you can set the font as the app's default font
+in its `theme`.
 
-dependencies:
-  flutter:
-    sdk: flutter
+To set a default font, set the `fontFamily` property in the app's `theme`.
+Match the `fontFamily` value to the `family` name declared in the
+`pubspec.yaml` file.
 
-dev_dependencies:
-  flutter_test:
-    sdk: flutter
+The result would resemble the following code.
 
-flutter:
-  fonts:
-    - family: Raleway
-      fonts:
-        - asset: fonts/Raleway-Regular.ttf
-        - asset: fonts/Raleway-Italic.ttf
-          style: italic
-    - family: RobotoMono
-      fonts:
-        - asset: fonts/RobotoMono-Regular.ttf
-        - asset: fonts/RobotoMono-Bold.ttf
-          weight: 700
-  uses-material-design: true
+<?code-excerpt "lib/main.dart (MaterialApp)"?>
+```dart
+return MaterialApp(
+  title: 'Custom Fonts',
+  // Set Raleway as the default app font.
+  theme: ThemeData(fontFamily: 'Raleway'),
+  home: const MyHomePage(),
+);
 ```
 
-### `main.dart`
+To learn more about themes,
+check out the [Using Themes to share colors and font styles][] recipe.
+
+## Set the font in a specific widget
+
+To apply the font to a specific widget like a `Text` widget,
+provide a [`TextStyle`][] to the widget.
+
+For this guide, 
+try to apply the `RobotoMono` font to a single `Text` widget.
+Match the `fontFamily` value to the `family` name declared in the
+`pubspec.yaml` file.
 
-<?code-excerpt "lib/main.dart"?>
+The result would resemble the following code.
+
+<?code-excerpt "lib/main.dart (Text)"?>
 ```dart
-import 'package:flutter/material.dart';
-
-void main() => runApp(const MyApp());
-
-class MyApp extends StatelessWidget {
-  const MyApp({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Custom Fonts',
-      // Set Raleway as the default app font.
-      theme: ThemeData(fontFamily: 'Raleway'),
-      home: const MyHomePage(),
-    );
-  }
-}
-
-class MyHomePage extends StatelessWidget {
-  const MyHomePage({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      // The AppBar uses the app-default Raleway font.
-      appBar: AppBar(title: const Text('Custom Fonts')),
-      body: const Center(
-        // This Text widget uses the RobotoMono font.
-        child: Text(
-          'Roboto Mono sample',
-          style: TextStyle(fontFamily: 'RobotoMono'),
-        ),
-      ),
-    );
-  }
-}
+child: Text(
+  'Roboto Mono sample',
+  style: TextStyle(fontFamily: 'RobotoMono'),
+),
 ```
 
-![Custom Fonts Demo]({{site.url}}/assets/images/docs/cookbook/fonts.png){:.site-mobile-screenshot}
+{{site.alert.important}}
+  If a [`TextStyle`][] object specifies a weight or style without a
+  corresponding font file, the engine uses a generic file for the font
+  and attempts to extrapolate outlines for the requested weight and style.
+  
+  Avoid relying on this capability. Import the proper font file instead.
+{{site.alert.end}}
 
+## Try the complete example
+
+### Download fonts
+
+Download the Raleway and RobotoMono font files from [Google Fonts][].
+
+### Update the `pubspec.yaml` file
+
+1. Open the `pubspec.yaml` file at the root of your Flutter project.
+
+   ```terminal
+   $ vi pubspec.yaml
+   ```
+
+1. Replace its contents with the following YAML.
+
+   ```yaml
+   name: custom_fonts
+   description: An example of how to use custom fonts with Flutter
+   
+   dependencies:
+     flutter:
+       sdk: flutter
+   
+   dev_dependencies:
+     flutter_test:
+       sdk: flutter
+   
+   flutter:
+     fonts:
+       - family: Raleway
+         fonts:
+           - asset: fonts/Raleway-Regular.ttf
+           - asset: fonts/Raleway-Italic.ttf
+             style: italic
+       - family: RobotoMono
+         fonts:
+           - asset: fonts/RobotoMono-Regular.ttf
+           - asset: fonts/RobotoMono-Bold.ttf
+             weight: 700
+     uses-material-design: true
+   ```
+
+### Use this `main.dart` file
+
+1. Open the `main.dart` file in the `lib/` directory of your Flutter project.
+
+   ```terminal
+   $ vi lib/main.dart
+   ```
+
+1. Replace its contents with the following Dart code.
+
+   <?code-excerpt "lib/main.dart"?>
+   ```dart
+   import 'package:flutter/material.dart';
+
+   void main() => runApp(const MyApp());
+
+   class MyApp extends StatelessWidget {
+     const MyApp({super.key});
+
+     @override
+     Widget build(BuildContext context) {
+       return MaterialApp(
+         title: 'Custom Fonts',
+         // Set Raleway as the default app font.
+         theme: ThemeData(fontFamily: 'Raleway'),
+         home: const MyHomePage(),
+       );
+     }
+   }
+
+   class MyHomePage extends StatelessWidget {
+     const MyHomePage({super.key});
+
+     @override
+     Widget build(BuildContext context) {
+       return Scaffold(
+         // The AppBar uses the app-default Raleway font.
+         appBar: AppBar(title: const Text('Custom Fonts')),
+         body: const Center(
+           // This Text widget uses the RobotoMono font.
+           child: Text(
+             'Roboto Mono sample',
+             style: TextStyle(fontFamily: 'RobotoMono'),
+           ),
+         ),
+       );
+     }
+   }
+   ```
+
+The resulting Flutter app should display the following screen.
+
+![Custom Fonts Demo]({{site.url}}/assets/images/docs/cookbook/fonts.png){:.site-mobile-screenshot}
 
+[variable-fonts]: https://fonts.google.com/knowledge/introducing_type/introducing_variable_fonts
 [Export fonts from a package]: {{site.url}}/cookbook/design/package-fonts
 [`fontFamily`]: {{site.api}}/flutter/painting/TextStyle/fontFamily.html
 [fontStyle property]: {{site.api}}/flutter/painting/TextStyle/fontStyle.html
@@ -375,4 +488,4 @@ class MyHomePage extends StatelessWidget {
 [Google Fonts]: https://fonts.google.com
 [google_fonts]: {{site.pub-pkg}}/google_fonts
 [`TextStyle`]: {{site.api}}/flutter/painting/TextStyle-class.html
-[Using Themes to share colors and font styles]: {{site.url}}/cookbook/design/themes
+[Using Themes to share colors and font styles]: {{site.url}}/cookbook/design/themes
\ No newline at end of file
diff --git a/src/cookbook/design/snackbars.md b/src/cookbook/design/snackbars.md
index 444540c5ac..759df1a98c 100644
--- a/src/cookbook/design/snackbars.md
+++ b/src/cookbook/design/snackbars.md
@@ -8,6 +8,8 @@ js:
     url: https://dartpad.cn/inject_embed.dart.js
 ---
 
+{% include docs/yt_shims.liquid %}
+
 <?code-excerpt path-base="cookbook/design/snackbars/"?>
 
 It can be useful to briefly inform your users when certain actions
@@ -99,10 +101,11 @@ const snackBar = SnackBar(
 // and use it to show a SnackBar.
 ScaffoldMessenger.of(context).showSnackBar(snackBar);
 ```
+
 {{site.alert.note}}
   To learn more, watch this short Widget of the Week video on the ScaffoldMessenger widget:
 
-  <iframe class="full-width" src="{{site.youtube-site}}/embed/lytQi-slT5Y" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+  <iframe class="full-width" src="{{yt-embed}}/lytQi-slT5Y" title="Learn about the ScaffoldMessenger Flutter Widget" {{yt-set}}></iframe>
 {{site.alert.end}}
 
 ## 3. Provide an optional action
@@ -210,7 +213,6 @@ class SnackBarPage extends StatelessWidget {
   <img src="/assets/images/docs/cookbook/snackbar.gif" alt="SnackBar Demo" class="site-mobile-screenshot" />
 </noscript>
 
-
 [Gestures]: {{site.url}}/cookbook#gestures
 [`Scaffold`]: {{site.api}}/flutter/material/Scaffold-class.html
 [`SnackBar`]: {{site.api}}/flutter/material/SnackBar-class.html
diff --git a/src/cookbook/design/themes.md b/src/cookbook/design/themes.md
index 9ce058c7a7..dd01c6503e 100644
--- a/src/cookbook/design/themes.md
+++ b/src/cookbook/design/themes.md
@@ -10,6 +10,9 @@ js:
     url: https://dartpad.cn/inject_embed.dart.js
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 <?code-excerpt path-base="cookbook/design/themes"?>
 
 {{site.alert.note}}
@@ -145,7 +148,7 @@ check out the [`ThemeData`][] documentation.
 
 ## 应用指定的主题
 
-To apply your new theme, use the `Theme.of(context)` method 
+To apply your new theme, use the `Theme.of(context)` method
 when specifying a widget's styling properties.
 These can include, but are not limited to, `style` and `color`.
 
@@ -261,7 +264,7 @@ To learn more, watch this short Widget of the Week video on the `Theme` widget:
 
 想要了解更多，你可以观看 Widget of the Week 中关于 `Theme` 的短视频：
 
-<iframe class="full-width" src="{{site.youtube-site}}/embed/oTvQDJOBXmM" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe class="full-width" src="{{yt-embed}}/oTvQDJOBXmM" title="了解 Theme Flutter Widget" {{yt-set}}></iframe>
 
 ## Try an interactive example
 
@@ -381,7 +384,5 @@ class MyHomePage extends StatelessWidget {
   <img src="/assets/images/docs/cookbook/themes.png" alt="Themes Demo" class="site-mobile-screenshot" />
 </noscript>
 
-
 [`copyWith()`]: {{site.api}}/flutter/material/ThemeData/copyWith.html
 [`ThemeData`]: {{site.api}}/flutter/material/ThemeData-class.html
-[`Theme`]: {{site.api}}/flutter/material/Theme-class.html
diff --git a/src/cookbook/effects/download-button.md b/src/cookbook/effects/download-button.md
index 4c52ecac86..87a44de6b3 100644
--- a/src/cookbook/effects/download-button.md
+++ b/src/cookbook/effects/download-button.md
@@ -7,6 +7,8 @@ js:
     url: https://dartpad.cn/inject_embed.dart.js
 ---
 
+{% include docs/yt_shims.liquid %}
+
 <?code-excerpt path-base="cookbook/effects/download_button"?>
 
 Apps are filled with buttons that execute long-running behaviors.
@@ -123,8 +125,8 @@ method remains simple, allowing for the additions
 that follow. Instead of creating a function to return a widget,
 like `Widget _buildSomething() {}`, always prefer creating a
 `StatelessWidget` or a `StatefulWidget` which is more performant. More
-considerations on this can be found in the [documentation](https://api.flutter.dev/flutter/widgets/StatelessWidget-class.html)
-or in a dedicated video in the Flutter [YouTube channel](https://www.youtube.com/watch?v=IOyq-eTRhvo).
+considerations on this can be found in the [documentation]({{site.api}}/flutter/widgets/StatelessWidget-class.html)
+or in a dedicated video in the Flutter [YouTube channel]({{yt-watch}}?v=IOyq-eTRhvo).
 
 For now, the `AnimatedContainer` child is just a `SizedBox` because we will come back at it in another step.
 
diff --git a/src/cookbook/effects/parallax-scrolling.md b/src/cookbook/effects/parallax-scrolling.md
index 426cecdfe9..cacf53ea17 100644
--- a/src/cookbook/effects/parallax-scrolling.md
+++ b/src/cookbook/effects/parallax-scrolling.md
@@ -6,14 +6,16 @@ js:
     url: https://dartpad.cn/inject_embed.dart.js
 ---
 
+{% include docs/yt_shims.liquid %}
+
 <?code-excerpt path-base="cookbook/effects/parallax_scrolling"?>
 
 When you scroll a list of cards (containing images,
 for example) in an app, you might notice that those
-images appear to scroll more slowly than the rest of the 
+images appear to scroll more slowly than the rest of the
 screen. It almost looks as if the cards in the list
 are in the foreground, but the images themselves sit
-far off in the distant background. This effect is 
+far off in the distant background. This effect is
 known as parallax.
 
 In this recipe, you create the parallax effect by building
@@ -22,7 +24,7 @@ Each card also contains an image.
 As the cards slide up the screen,
 the images within each card slide down.
 
-The following animation shows the app's behavior: 
+The following animation shows the app's behavior:
 
 ![Parallax scrolling]({{site.url}}/assets/images/docs/cookbook/effects/ParallaxScrolling.gif){:.site-mobile-screenshot}
 
@@ -33,7 +35,7 @@ you must first display a list.
 
 Create a new stateless widget called `ParallaxRecipe`.
 Within `ParallaxRecipe`, build a widget tree with a
-`SingleChildScrollView` and a `Column`, which forms 
+`SingleChildScrollView` and a `Column`, which forms
 a list.
 
 <?code-excerpt "lib/excerpt1.dart (ParallaxRecipe)"?>
@@ -56,11 +58,11 @@ class ParallaxRecipe extends StatelessWidget {
 
 Each list item displays a rounded-rectangle background
 image, exemplifying one of seven locations in the world.
-Stacked on top of that background image is the 
+Stacked on top of that background image is the
 name of the location and its country,
-positioned in the lower left. Between the 
+positioned in the lower left. Between the
 background image and the text is a dark gradient,
-which improves the legibility 
+which improves the legibility
 of the text against the background.
 
 Implement a stateless widget called `LocationListItem`
@@ -184,17 +186,17 @@ class ParallaxRecipe extends StatelessWidget {
 
 You now have a typical, scrollable list of cards
 that displays seven unique locations in the world.
-In the next step, you add a parallax effect to the 
+In the next step, you add a parallax effect to the
 background image.
 
 ## Implement the parallax effect
 
 A parallax scrolling effect is achieved by slightly
 pushing the background image in the opposite direction
-of the rest of the list. As the list items slide up 
+of the rest of the list. As the list items slide up
 the screen, each background image slides slightly downward.
 Conversely, as the list items slide down the screen,
-each background image slides slightly upward. 
+each background image slides slightly upward.
 Visually, this results in parallax.
 
 The parallax effect depends on the list item's
@@ -202,10 +204,10 @@ current position within its ancestor `Scrollable`.
 As the list item's scroll position changes, the position
 of the list item's background image must also change.
 This is an interesting problem to solve. The position
-of a list item within the `Scrollable` isn't 
+of a list item within the `Scrollable` isn't
 available until Flutter's layout phase is complete.
 This means that the position of the background image
-must be determined in the paint phase, which comes after 
+must be determined in the paint phase, which comes after
 the layout phase. Fortunately, Flutter provides a widget
 called `Flow`, which is specifically designed to give you
 control over the transform of a child widget immediately
@@ -216,7 +218,7 @@ to reposition your child widgets however you want.
 {{site.alert.note}}
   To learn more, watch this short Widget of the Week video on the Flow widget:
 
-  <iframe class="full-width" src="{{site.youtube-site}}/embed/NG6pvXpnIso" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+  <iframe class="full-width" src="{{yt-embed}}/NG6pvXpnIso" title="Learn about the Flow Flutter Widget" {{yt-set}}></iframe>
 {{site.alert.end}}
 
 {{site.alert.note}}
@@ -288,7 +290,7 @@ class ParallaxFlowDelegate extends FlowDelegate {
 
 A `FlowDelegate` controls how its children are sized
 and where those children are painted. In this case,
-your `Flow` widget has only one child: the background 
+your `Flow` widget has only one child: the background
 image. That image must be exactly as wide as the `Flow` widget.
 
 Return tight width constraints for your background image child.
@@ -305,16 +307,16 @@ BoxConstraints getConstraintsForChild(int i, BoxConstraints constraints) {
 
 Your background images are now sized appropriately.
 But, you still need to calculate the vertical position
-of each background image based on its scroll 
+of each background image based on its scroll
 position, and then paint it.
 
 There are three critical pieces of information that
 you need to compute the desired position of a
-background image: 
+background image:
 
- * The bounds of the ancestor `Scrollable`
- * The bounds of the individual list item
- * The size of the image after it's scaled down
+* The bounds of the ancestor `Scrollable`
+* The bounds of the individual list item
+* The size of the image after it's scaled down
    to fit in the list item
 
 To look up the bounds of the `Scrollable`,
@@ -325,7 +327,7 @@ you pass your list item's `BuildContext` into your `FlowDelegate`.
 
 To look up the final size of your background image,
 you assign a `GlobalKey` to your `Image` widget,
-and then you pass that `GlobalKey` into your 
+and then you pass that `GlobalKey` into your
 `FlowDelegate`.
 
 Make this information available to `ParallaxFlowDelegate`.
@@ -403,7 +405,7 @@ void paintChildren(FlowPaintingContext context) {
 
 Use the pixel position of the list item to calculate its
 percentage from the top of the `Scrollable`.
-A list item at the top of the scrollable area should 
+A list item at the top of the scrollable area should
 produce 0%, and a list item at the bottom of the
 scrollable area should produce 100%.
 
@@ -459,7 +461,7 @@ void paintChildren(FlowPaintingContext context) {
 
 Use `verticalAlignment`, along with the size of the
 list item and the size of the background image,
-to produce a `Rect` that determines where the 
+to produce a `Rect` that determines where the
 background image should be positioned.
 
 <?code-excerpt "lib/excerpt5.dart (PaintChildrenPt4)" replace="/  \/\/ code-excerpt-closing-bracket/}/g"?>
@@ -497,7 +499,7 @@ void paintChildren(FlowPaintingContext context) {
 
 Using `childRect`, paint the background image with
 the desired translation transformation.
-It's this transformation over time that gives you the 
+It's this transformation over time that gives you the
 parallax effect.
 
 <?code-excerpt "lib/excerpt5.dart (PaintChildrenPt5)" replace="/  \/\/ code-excerpt-closing-bracket/}/g"?>
@@ -944,7 +946,6 @@ const locations = [
 ];
 ```
 
-
 [`CustomPaint`]: {{site.api}}/flutter/widgets/CustomPaint-class.html
 [`Flow`]: {{site.api}}/flutter/widgets/Flow-class.html
 [`RenderBox`]: {{site.api}}/flutter/rendering/RenderBox-class.html
diff --git a/src/cookbook/games/achievements-leaderboard.md b/src/cookbook/games/achievements-leaderboard.md
index 3b07c1a4fb..9f689c161b 100644
--- a/src/cookbook/games/achievements-leaderboard.md
+++ b/src/cookbook/games/achievements-leaderboard.md
@@ -4,6 +4,8 @@ description: >
   How to use the games_services plugin to add functionality to your game.
 ---
 
+<?code-excerpt path-base="cookbook/games/achievements_leaderboards"?>
+
 Gamers have various motivations for playing games.
 In broad strokes, there are four major motivations: 
 [immersion, achievement, cooperation, and competition][].
@@ -117,7 +119,7 @@ To enable *Play Games Services* on Android:
     containing the XML you received in the previous step.
 
 [Google Play Console]: https://play.google.com/console/
-[Play Games Services guide]: https://developers.google.com/games/services/console/enabling
+[Play Games Services guide]: {{site.developers}}/games/services/console/enabling
 
 ## 2. Sign in to the game service
 
@@ -133,6 +135,7 @@ have your achievement & leaderboard IDs ready, it's finally Dart time.
 2.  Before you can do anything else, you have to sign the player into
     the game service.
 
+    <?code-excerpt "lib/various.dart (signIn)"?>
     ```dart
     try {
       await GamesServices.signIn();
@@ -163,6 +166,7 @@ handling for clarity.
     and take note of their IDs. Now you can award any of those
     achievements from your Dart code:
 
+    <?code-excerpt "lib/various.dart (unlock)"?>
     ```dart
     await GamesServices.unlock(
       achievement: Achievement(
@@ -178,6 +182,7 @@ handling for clarity.
 2.  To display the achievements UI from your game, call the
     `games_services` API:
 
+    <?code-excerpt "lib/various.dart (showAchievements)"?>
     ```dart
     await GamesServices.showAchievements();
     ```
@@ -202,6 +207,7 @@ leaderboards.
     Console and App Store Connect, and took note of its ID. Using this
     ID, you can submit new scores for the player:
 
+    <?code-excerpt "lib/various.dart (submitScore)"?>
     ```dart
     await GamesServices.submitScore(
       score: Score(
@@ -218,10 +224,11 @@ leaderboards.
 2.  To display the leaderboard as an overlay over your game, make the
     following call:
 
+    <?code-excerpt "lib/various.dart (showLeaderboards)"?>
     ```dart
     await GamesServices.showLeaderboards(
-      iOSLeaderboardID: "some_id_from_app_store",
-      androidLeaderboardID: "sOmE_iD_fRoM_gPlAy",
+      iOSLeaderboardID: 'some_id_from_app_store',
+      androidLeaderboardID: 'sOmE_iD_fRoM_gPlAy',
     );
     ```
 
@@ -246,6 +253,7 @@ Each game has different needs from game services.
 To start, you might want to create this controller 
 in order to keep all achievements & leaderboards logic in one place:
 
+<?code-excerpt "lib/games_services_controller.dart"?>
 ```dart
 import 'dart:async';
 
@@ -329,8 +337,8 @@ class GamesServicesController {
     try {
       await GamesServices.showLeaderboards(
         // TODO: When ready, change both these leaderboard IDs.
-        iOSLeaderboardID: "some_id_from_app_store",
-        androidLeaderboardID: "sOmE_iD_fRoM_gPlAy",
+        iOSLeaderboardID: 'some_id_from_app_store',
+        androidLeaderboardID: 'sOmE_iD_fRoM_gPlAy',
       );
     } catch (e) {
       _log.severe('Cannot show leaderboard: $e');
diff --git a/src/cookbook/games/firestore-multiplayer.md b/src/cookbook/games/firestore-multiplayer.md
index 2d18af39fc..3340088396 100644
--- a/src/cookbook/games/firestore-multiplayer.md
+++ b/src/cookbook/games/firestore-multiplayer.md
@@ -5,6 +5,10 @@ description: >
   in your game.
 ---
 
+{% include docs/yt_shims.liquid %}
+
+<?code-excerpt path-base="cookbook/games/firestore_multiplayer"?>
+
 Multiplayer games need a way to synchronize game states between players.
 Broadly speaking, two types of multiplayer games exist:
 
@@ -63,7 +67,7 @@ in the [`flutter/games` repository][].
 Run the following command to clone that repository:
 
 ```terminal
-$ git clone https://github.com/flutter/games.git
+git clone https://github.com/flutter/games.git
 ```
 
 {% comment %}
@@ -93,7 +97,7 @@ so every player sees the same state.
 If you want a quick, 15-minute primer on Cloud Firestore,
 check out the following video:
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/v_hR4K4auoQ" title="YouTube video player - What is a NoSQL Database? How is Cloud Firestore structured? | Get to know Cloud Firestore #1" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/v_hR4K4auoQ" title="What is a NoSQL Database? Learn about Cloud Firestore" {{yt-set}}></iframe>
 
 To add Firestore to your Flutter project,
 follow the first two steps of the
@@ -114,35 +118,37 @@ Dart code in that guide, return to this recipe.
 
 {% comment %}
   Revisit to see if we can inline the steps here:
-  https://firebase.google.com/docs/flutter/setup
+  <https://firebase.google.com/docs/flutter/setup>
   ... followed by the first 2 steps here:
-  https://firebase.google.com/docs/firestore/quickstart
+  <https://firebase.google.com/docs/firestore/quickstart>
 {% endcomment %}
 
 [Cloud Firestore]: https://cloud.google.com/firestore/
-[Create a Cloud Firestore database]: https://firebase.google.com/docs/firestore/quickstart#create
-[Get started with Cloud Firestore]: https://firebase.google.com/docs/firestore/quickstart
-[Set up your development environment]: https://firebase.google.com/docs/firestore/quickstart#set_up_your_development_environment
+[Create a Cloud Firestore database]: {{site.firebase}}/docs/firestore/quickstart#create
+[Get started with Cloud Firestore]: {{site.firebase}}/docs/firestore/quickstart
+[Set up your development environment]: {{site.firebase}}/docs/firestore/quickstart#set_up_your_development_environment
 
 ## 3. Initialize Firestore
 
-1.  Open `lib/main.dart` and import the plugins,
+1. Open `lib/main.dart` and import the plugins,
     as well as the `firebase_options.dart` file
     that was generated by `flutterfire configure` in the previous step.
 
+    <?code-excerpt "lib/main.dart (imports)"?>
     ```dart
     import 'package:cloud_firestore/cloud_firestore.dart';
     import 'package:firebase_core/firebase_core.dart';
-    
+
     import 'firebase_options.dart';
     ```
 
-2.  Add the following code just above the call to `runApp()`
+2. Add the following code just above the call to `runApp()`
     in `lib/main.dart`:
 
+    <?code-excerpt "lib/main.dart (initializeApp)"?>
     ```dart
     WidgetsFlutterBinding.ensureInitialized();
-    
+
     await Firebase.initializeApp(
       options: DefaultFirebaseOptions.currentPlatform,
     );
@@ -150,7 +156,7 @@ Dart code in that guide, return to this recipe.
 
     This ensures that Firebase is initialized on game startup.
 
-3.  Add the Firestore instance to the app.
+3. Add the Firestore instance to the app.
     That way, any widget can access this instance.
     Widgets can also react to the instance missing, if needed.
 
@@ -160,6 +166,7 @@ Dart code in that guide, return to this recipe.
 
     Replace the boilerplate `runApp(MyApp())` with the following:
 
+    <?code-excerpt "lib/main.dart (runApp)"?>
     ```dart
     runApp(
       Provider.value(
@@ -173,7 +180,7 @@ Dart code in that guide, return to this recipe.
     This enables you to test the app without Firebase.
 
     {{site.alert.note}}
-      In case you are _not_ working with the `card` template,
+      In case you are *not* working with the `card` template,
       you must either [install the `provider` package][]
       or use your own method of accessing the `FirebaseFirestore`
       instance from various parts of your codebase.
@@ -200,6 +207,7 @@ To create a controller, copy,
 then paste the following code into a new file called
 `lib/multiplayer/firestore_controller.dart`.
 
+<?code-excerpt "lib/multiplayer/firestore_controller.dart"?>
 ```dart
 import 'dart:async';
 
@@ -226,13 +234,13 @@ class FirestoreController {
       .collection('areas')
       .doc('area_one')
       .withConverter<List<PlayingCard>>(
-          fromFirestore: _cardsFromFirestore, toFirestore: _cardsToFirestore);
+      fromFirestore: _cardsFromFirestore, toFirestore: _cardsToFirestore);
 
   late final _areaTwoRef = _matchRef
       .collection('areas')
       .doc('area_two')
       .withConverter<List<PlayingCard>>(
-          fromFirestore: _cardsFromFirestore, toFirestore: _cardsToFirestore);
+      fromFirestore: _cardsFromFirestore, toFirestore: _cardsToFirestore);
 
   StreamSubscription? _areaOneFirestoreSubscription;
   StreamSubscription? _areaTwoFirestoreSubscription;
@@ -275,7 +283,7 @@ class FirestoreController {
       DocumentSnapshot<Map<String, dynamic>> snapshot,
       SnapshotOptions? options,
       ) {
-    final data = snapshot.data()?['cards'];
+    final data = snapshot.data()?['cards'] as List?;
 
     if (data == null) {
       _log.info('No data found on Firestore, returning empty list');
@@ -302,7 +310,7 @@ class FirestoreController {
   }
 
   /// Updates Firestore with the local state of [area].
-  void _updateFirestoreFromLocal(
+  Future<void> _updateFirestoreFromLocal(
       PlayingArea area, DocumentReference<List<PlayingCard>> ref) async {
     try {
       _log.fine('Updating Firestore with local data (${area.cards}) ...');
@@ -314,12 +322,12 @@ class FirestoreController {
     }
   }
 
-  /// Sends the local state of [boardState.areaOne] to Firestore.
+  /// Sends the local state of `boardState.areaOne` to Firestore.
   void _updateFirestoreFromLocalAreaOne() {
     _updateFirestoreFromLocal(boardState.areaOne, _areaOneRef);
   }
 
-  /// Sends the local state of [boardState.areaTwo] to Firestore.
+  /// Sends the local state of `boardState.areaTwo` to Firestore.
   void _updateFirestoreFromLocalAreaTwo() {
     _updateFirestoreFromLocal(boardState.areaTwo, _areaTwoRef);
   }
@@ -366,39 +374,41 @@ Notice the following features of this code:
   The Firestore API lets us subscribe to these references
   with `.snapshots()`, and write to them with `.set()`.
 
-
 ## 5. Use the Firestore controller
 
-1.  Open the file responsible for starting the play session:
+1. Open the file responsible for starting the play session:
     `lib/play_session/play_session_screen.dart` in the case of the
     `card` template.
     You instantiate the Firestore controller from this file.
 
-2.  Import Firebase and the controller:
+2. Import Firebase and the controller:
 
+    <?code-excerpt "lib/play_session/play_session_screen.dart (imports)"?>
     ```dart
     import 'package:cloud_firestore/cloud_firestore.dart';
     import '../multiplayer/firestore_controller.dart';
     ```
 
-3.  Add a nullable field to the `_PlaySessionScreenState` class
+3. Add a nullable field to the `_PlaySessionScreenState` class
     to contain a controller instance:
 
+    <?code-excerpt "lib/play_session/play_session_screen.dart (controller)"?>
     ```dart
     FirestoreController? _firestoreController;
     ```
 
-4.  In the `initState()` method of the same class,
+4. In the `initState()` method of the same class,
     add code that tries to read the FirebaseFirestore instance
     and, if successful, constructs the controller.
     You added the `FirebaseFirestore` instance to `main.dart`
-    in the _Initialize Firestore_ step.
+    in the *Initialize Firestore* step.
 
+    <?code-excerpt "lib/play_session/play_session_screen.dart (initState)"?>
     ```dart
     final firestore = context.read<FirebaseFirestore?>();
     if (firestore == null) {
       _log.warning("Firestore instance wasn't provided. "
-          "Running without _firestoreController.");
+          'Running without _firestoreController.');
     } else {
       _firestoreController = FirestoreController(
         instance: firestore,
@@ -407,30 +417,30 @@ Notice the following features of this code:
     }
     ```
 
-5.  Dispose of the controller using the `dispose()` method
+5. Dispose of the controller using the `dispose()` method
     of the same class.
 
+    <?code-excerpt "lib/play_session/play_session_screen.dart (dispose)"?>
     ```dart
     _firestoreController?.dispose();
     ```
 
-
 ## 6. Test the game
 
-1.  Run the game on two separate devices
+1. Run the game on two separate devices
     or in 2 different windows on the same device.
 
-2.  Watch how adding a card to an area on one device
+2. Watch how adding a card to an area on one device
     makes it appear on the other one.
 
     {% comment %}
       TBA: GIF of multiplayer working
     {% endcomment %}
 
-3.  Open the [Firebase web console][]
+3. Open the [Firebase web console][]
     and navigate to your project's Firestore Database.
 
-4.  Watch how it updates the data in real time.
+4. Watch how it updates the data in real time.
     You can even edit the data in the console
     and see all running clients update.
 
@@ -445,7 +455,7 @@ Firebase integration include the following:
 
 * **The game crashes when trying to reach Firebase.**
   * Firebase integration hasn't been properly set up.
-    Revisit _Step 2_ and make sure to run `flutterfire configure`
+    Revisit *Step 2* and make sure to run `flutterfire configure`
     as part of that step.
 
 * **The game doesn't communicate with Firebase on macOS.**
@@ -494,5 +504,5 @@ The basics remain the same:
 a large collection of documents,
 each representing one active or potential match.
 
-[a Firestore codelab or two]: https://codelabs.developers.google.com/?product=flutter&text=firestore
-[built-in way to authenticate users]: https://firebase.google.com/docs/auth/flutter/start
+[a Firestore codelab or two]: {{site.codelabs}}/?product=flutter&text=firestore
+[built-in way to authenticate users]: {{site.firebase}}/docs/auth/flutter/start
diff --git a/src/cookbook/gestures/handling-taps.md b/src/cookbook/gestures/handling-taps.md
index 2088a248a2..ba19bd607d 100644
--- a/src/cookbook/gestures/handling-taps.md
+++ b/src/cookbook/gestures/handling-taps.md
@@ -10,6 +10,8 @@ js:
     url: https://dartpad.cn/inject_embed.dart.js
 ---
 
+{% include docs/yt_shims.liquid %}
+
 <?code-excerpt path-base="cookbook/gestures/handling_taps/"?>
 
 You not only want to display information to users,
@@ -27,7 +29,7 @@ to fundamental actions, such as tapping and dragging.
 
   了解更多，请参考下方「每周 Widget」的里关于 GestureDetector 的短视频：
 
-  <iframe class="full-width" src="{{site.youtube-site}}/embed/WhVXkCFPmK4" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+  <iframe class="full-width" src="{{yt-embed}}/WhVXkCFPmK4" title="了解 GestureDetector Flutter Widget" {{yt-set}}></iframe>
 
 {{site.alert.end}}
 
@@ -159,7 +161,6 @@ class MyButton extends StatelessWidget {
   <img src="/assets/images/docs/cookbook/handling-taps.gif" alt="Handle taps demo" class="site-mobile-screenshot" />
 </noscript>
 
-
 [Add Material touch ripples]: {{site.url}}/cookbook/gestures/ripples
 [`CupertinoButton`]: {{site.api}}/flutter/cupertino/CupertinoButton-class.html
 [`TextButton`]: {{site.api}}/flutter/material/TextButton-class.html
diff --git a/src/cookbook/images/cached-images.md b/src/cookbook/images/cached-images.md
index 7b23583ff7..566f51866f 100644
--- a/src/cookbook/images/cached-images.md
+++ b/src/cookbook/images/cached-images.md
@@ -7,6 +7,8 @@ tags: cookbook, 实用教程, 使用图片
 keywords: Flutter使用图片,图片缓存,网络图片,API
 ---
 
+{% include docs/yt_shims.liquid %}
+
 <?code-excerpt path-base="cookbook/images/cached_images"?>
 
 In some cases, it's handy to cache images as they're downloaded from the
@@ -22,7 +24,7 @@ use the [`cached_network_image`][] package.
 
   了解更多，请参考下方「每周 Widget」的里关于 cached_network_image 的短视频：
 
-  <iframe class="full-width" src="{{site.youtube-site}}/embed/fnHr_rsQwDA" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+  <iframe class="full-width" src="{{yt-embed}}/fnHr_rsQwDA" title="了解 cached_network_image Flutter Package" {{yt-set}}></iframe>
 
 {{site.alert.end}}
 
@@ -95,5 +97,4 @@ class MyApp extends StatelessWidget {
 }
 ```
 
-
 [`cached_network_image`]: {{site.pub-pkg}}/cached_network_image
diff --git a/src/cookbook/lists/horizontal-list.md b/src/cookbook/lists/horizontal-list.md
index 7823715914..0bd88532d9 100644
--- a/src/cookbook/lists/horizontal-list.md
+++ b/src/cookbook/lists/horizontal-list.md
@@ -60,6 +60,28 @@ ListView(
 
 ## 交互式样例
 
+{{site.alert.secondary}}
+
+  **Desktop and web only:**
+  This example works in the browser and on the desktop.
+  However, as this list scrolls on the horizontal axis
+  (left to right or right to left),
+  hold <kbd>Shift</kbd> while using the mouse scroll wheel to scroll the list.
+
+  **仅限桌面和 web：**
+  此示例在浏览器和桌面上能够正常交互：
+  但要注意的是，
+  需要按住 <kbd>Shift</kbd> 键的同时使用鼠标滚轮滚动列表，
+  才能让列表在水平轴上滚动（从左到右和从右到左）。
+  
+  To learn more, read the [breaking change][] page on the
+  default drag for scrolling devices.
+
+  了解更多信息，请参阅 [破坏性改动][breaking change] 页面中
+  关于滚动设备的默认拖动方式。
+
+{{site.alert.end}}
+
 <?code-excerpt "lib/main.dart"?>
 ```run-dartpad:theme-light:mode-flutter:run-true:width-100%:height-600px:split-60:ga_id-interactive_example
 import 'package:flutter/material.dart';
@@ -119,5 +141,5 @@ class MyApp extends StatelessWidget {
   <img src="/assets/images/docs/cookbook/horizontal-list.gif" alt="Horizontal List Demo" class="site-mobile-screenshot" />
 </noscript>
 
-
+[breaking change]: {{site.url}}/release/breaking-changes/default-scroll-behavior-drag
 [`ListView`]: {{site.api}}/flutter/widgets/ListView-class.html
diff --git a/src/cookbook/navigation/set-up-app-links.md b/src/cookbook/navigation/set-up-app-links.md
index f6591a10c4..61d66016bf 100644
--- a/src/cookbook/navigation/set-up-app-links.md
+++ b/src/cookbook/navigation/set-up-app-links.md
@@ -201,7 +201,7 @@ launches and displays the details screen:
 Source code: [deeplink_cookbook][]
 
 [deeplink_cookbook]: {{site.github}}/flutter/codelabs/tree/main/deeplink_cookbook
-[Firebase Hosting]: https://firebase.google.com/docs/hosting
+[Firebase Hosting]: {{site.firebase}}/docs/hosting
 [go_router]: {{site.pub}}/packages/go_router
 [GitHub Pages]: https://pages.github.com
 [uni_links]: {{site.pub}}/packages/uni_links
diff --git a/src/cookbook/navigation/set-up-universal-links.md b/src/cookbook/navigation/set-up-universal-links.md
index f93e0eea5b..6e7ddb9c1e 100644
--- a/src/cookbook/navigation/set-up-universal-links.md
+++ b/src/cookbook/navigation/set-up-universal-links.md
@@ -184,10 +184,10 @@ launches and displays the details screen:
 
 Source code: [deeplink_cookbook][]
 
-[alternate mode section]: https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_developer_associated-domains?language=objc
-[deeplink_cookbook]: https://github.com/flutter/codelabs/tree/main/deeplink_cookbook
-[developer account]: https://developer.apple.com/account
-[Firebase Hosting]: https://firebase.google.com/docs/hosting
-[go_router]: https://pub.dev/packages/go_router
+[alternate mode section]: {{site.apple-dev}}/documentation/bundleresources/entitlements/com_apple_developer_associated-domains?language=objc
+[deeplink_cookbook]: {{site.repo.organization}}/codelabs/tree/main/deeplink_cookbook
+[developer account]: {{site.apple-dev}}/account
+[Firebase Hosting]: {{site.firebase}}/docs/hosting
+[go_router]: {{site.pub-pkg}}/go_router
 [GitHub Pages]: https://pages.github.com
-[uni_links]: https://pub.dev/packages/uni_links
+[uni_links]: {{site.pub-pkg}}/uni_links
diff --git a/src/cookbook/networking/background-parsing.md b/src/cookbook/networking/background-parsing.md
index 4cf656bb68..208cbdbdee 100644
--- a/src/cookbook/networking/background-parsing.md
+++ b/src/cookbook/networking/background-parsing.md
@@ -196,7 +196,7 @@ Future<List<Photo>> fetchPhotos(http.Client client) async {
   final response = await client
       .get(Uri.parse('https://jsonplaceholder.typicode.com/photos'));
 
-  // Use the compute function to run parsePhotos in a separate isolate.
+  // Synchronously run parsePhotos in the main isolate.
   return parsePhotos(response.body);
 }
 ```
diff --git a/src/cookbook/networking/fetch-data.md b/src/cookbook/networking/fetch-data.md
index 06bd8ea6cd..f806d91f6a 100644
--- a/src/cookbook/networking/fetch-data.md
+++ b/src/cookbook/networking/fetch-data.md
@@ -14,6 +14,19 @@ Luckily, Dart and Flutter provide tools, such as the
 对于大部分应用来说，获取网络数据都是必不可少的一个功能。
 幸运的是，Dart 和 Flutter 就为我们提供了这样的工具。
 
+{{site.alert.note}}
+
+  You should avoid directly using `dart:io` or `dart:html`
+  to make HTTP requests.
+  Those libraries are platform-dependent
+  and tied to a single implementation.
+
+  你需要避免直接使用 `dart:io` 或 `dart:html` 
+  来进行 HTTP 请求。
+  这些库依赖于平台并绑定单个实现。
+
+{{site.alert.end}}
+
 This recipe uses the following steps:
 
 这个教程包含以下步骤：
diff --git a/src/cookbook/persistence/key-value.md b/src/cookbook/persistence/key-value.md
index 8c5476169a..ec492b8a76 100644
--- a/src/cookbook/persistence/key-value.md
+++ b/src/cookbook/persistence/key-value.md
@@ -8,6 +8,8 @@ tags: cookbook, 实用教程, 持久化
 keywords: KV,SharedPreferences
 ---
 
+{% include docs/yt_shims.liquid %}
+
 <?code-excerpt path-base="cookbook/persistence/key_value/"?>
 
 If you have a relatively small collection of key-values
@@ -48,7 +50,7 @@ This recipe uses the following steps:
   To learn more, watch this short Package of the Week video
   on the `shared_preferences` package:
 
-  <iframe class="full-width" src="{{site.youtube-site}}/embed/sa_U0jffQII" title="YouTube video player - shared_preferences (Package of the Week)" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> 
+  <iframe class="full-width" src="{{yt-embed}}/sa_U0jffQII" title="Learn about the shared_preferences Flutter package" {{yt-set}}></iframe>
 {{site.alert.end}}
 
 ## 1. Add the dependency
@@ -65,7 +67,7 @@ run `flutter pub add`:
 运行 `flutter pub add` 将 `shared_preferences` 添加为依赖：
 
 ```terminal
-$ flutter pub add shared_preferences
+flutter pub add shared_preferences
 ```
 
 ## 2. Save data
@@ -275,5 +277,4 @@ class _MyHomePageState extends State<MyHomePage> {
 }
 ```
 
-
 [`shared_preferences`]: {{site.pub-pkg}}/shared_preferences
diff --git a/src/cookbook/persistence/reading-writing-files.md b/src/cookbook/persistence/reading-writing-files.md
index 801bab4d38..e9e5ea2bc1 100644
--- a/src/cookbook/persistence/reading-writing-files.md
+++ b/src/cookbook/persistence/reading-writing-files.md
@@ -7,6 +7,8 @@ tags: cookbook, 实用教程, 持久化
 keywords: 文件读写,临时文件夹,Documents目录
 ---
 
+{% include docs/yt_shims.liquid %}
+
 <?code-excerpt path-base="cookbook/persistence/reading_writing_files/"?>
 
 In some cases, you need to read and write files to disk.
@@ -48,17 +50,17 @@ on the `path_provider` package:
 
 你可以观看每周 package 视频来了解更多关于 `path_provider` 的内容：
 
-<iframe class="full-width" src="{{site.youtube-site}}/embed/Ci4t-NkOY3I" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe class="full-width" src="{{yt-embed}}/Ci4t-NkOY3I" title="了解 path_provider Flutter Package" {{yt-set}}></iframe>
 
 {{site.alert.note}}
 
   This recipe doesn't work with web apps at this time.
   To follow the discussion on this issue,
-  check out `flutter/flutter` [issue #45296]({{site.github}}/flutter/flutter/issues/45296).
+  check out `flutter/flutter` [issue #45296]({{site.repo.flutter}}/issues/45296).
 
   该方法目前在 Web 平台上不可用。
   若你想跟踪讨论，请访问 `flutter/flutter`
-  [issue #45296]({{site.github}}/flutter/flutter/issues/45296)。
+  [issue #45296]({{site.repo.flutter}}/issues/45296)。
 
 {{site.alert.end}}
 
diff --git a/src/cookbook/plugins/google-mobile-ads.md b/src/cookbook/plugins/google-mobile-ads.md
index 211144e8d9..2adffdd172 100644
--- a/src/cookbook/plugins/google-mobile-ads.md
+++ b/src/cookbook/plugins/google-mobile-ads.md
@@ -4,6 +4,8 @@ short-title: Show ads
 description: How to use the google_mobile_ads package to show ads in Flutter.
 ---
 
+<?code-excerpt path-base="cookbook/plugins/google_mobile_ads"?>
+
 {% comment %}
   This partly duplicates the AdMob documentation
   here: https://developers.google.com/admob/flutter/quick-start
@@ -35,7 +37,7 @@ package to add a banner ad to your app or game.
   Ad Manager, a platform intended for large publishers. Integrating Ad
   Manager resembles integrating AdMob, but it won't be covered in this
   cookbook recipe. To use Ad Manager, follow the
-  [Ad Manager documentation](https://developers.google.com/ad-manager/mobile-ads-sdk/flutter/quick-start).
+  [Ad Manager documentation]({{site.developers}}/ad-manager/mobile-ads-sdk/flutter/quick-start).
 {{site.alert.end}}
 
 ## 1. Get AdMob App IDs
@@ -142,11 +144,12 @@ You need to initialize the Mobile Ads SDK before loading ads.
 1.  Call `MobileAds.instance.initialize()` to initialize the Mobile Ads
     SDK.
 
+    <?code-excerpt "lib/main.dart (main)"?>
     ```dart
-    void main() {
+    void main() async {
       WidgetsFlutterBinding.ensureInitialized();
       unawaited(MobileAds.instance.initialize());
-    
+
       runApp(MyApp());
     }
     ```
@@ -171,26 +174,36 @@ To load a banner ad, construct a `BannerAd` instance, and
 call `load()` on it.
 
 {{site.alert.note}}
-  In the following code snippet, `adSize` and `adUnitId` have not been
-  initialized. We will get to that in a later step.
+  The following code snippet refers to fields such a `adSize`, `adUnitId`
+  and `_bannerAd`. This will all make more sense in a later step.
 {{site.alert.end}}
-  
+
+<?code-excerpt "lib/my_banner_ad.dart (loadAd)"?>
 ```dart
 /// Loads a banner ad.
 void _loadAd() {
   final bannerAd = BannerAd(
-    size: adSize,
-    adUnitId: adUnitId,
+    size: widget.adSize,
+    adUnitId: widget.adUnitId,
     request: const AdRequest(),
     listener: BannerAdListener(
+      // Called when an ad is successfully received.
       onAdLoaded: (ad) {
-        // TODO: show the ad
+        if (!mounted) {
+          ad.dispose();
+          return;
+        }
+        setState(() {
+          _bannerAd = ad as BannerAd;
+        });
       },
-      onAdFailedToLoad: (ad, err) {
+      // Called when an ad request failed.
+      onAdFailedToLoad: (ad, error) {
+        debugPrint('BannerAd failed to load: $error');
         ad.dispose();
       },
     ),
-  ); 
+  );
 
   // Start loading.
   bannerAd.load();
@@ -205,25 +218,26 @@ To view a complete example, check out the last step of this recipe.
 Once you have a loaded instance of `BannerAd`, use `AdWidget` to show it.
 
 ```dart
-AdWidget(ad: bannerAd)
+AdWidget(ad: _bannerAd)
 ```
 
 It's a good idea to wrap the widget in a `SafeArea` (so that no part of
 the ad is obstructed by device notches) and a `SizedBox` (so that it has
 its specified, constant size before and after loading).
 
+<?code-excerpt "lib/my_banner_ad.dart (build)"?>
 ```dart
 @override
 Widget build(BuildContext context) {
   return SafeArea(
     child: SizedBox(
-      width: adSize.width.toDouble(),
-      height: adSize.height.toDouble(),
+      width: widget.adSize.width.toDouble(),
+      height: widget.adSize.height.toDouble(),
       child: _bannerAd == null
-          // Nothing to render yet.
+      // Nothing to render yet.
           ? SizedBox()
-          // The actual ad.
-          : AdWidget(ad: bannerAd),
+      // The actual ad.
+          : AdWidget(ad: _bannerAd!),
     ),
   );
 }
@@ -234,8 +248,9 @@ practice for when to call `dispose()` is either after the `AdWidget` is
 removed from the widget tree or in the
 `BannerAdListener.onAdFailedToLoad()` callback.
 
+<?code-excerpt "lib/my_banner_ad.dart (dispose)"?>
 ```dart
-bannerAd.dispose();
+_bannerAd?.dispose();
 ```
 
 
@@ -253,7 +268,7 @@ To show anything beyond test ads, you have to register ad units.
     beyond banner ads --- interstitials, rewarded ads, app open ads, and
     so on. 
     The API for those is similar, and documented in the 
-    [AdMob documentation](https://developers.google.com/admob/flutter/quick-start)
+    [AdMob documentation]({{site.developers}}/admob/flutter/quick-start)
     and through 
     [official samples](https://github.com/googleads/googleads-mobile-flutter/tree/main/samples/admob).
 
@@ -270,8 +285,9 @@ To show anything beyond test ads, you have to register ad units.
 5.  Add these *Ad unit IDs* to the constructor of `BannerAd`,
     depending on the target app platform.
 
+    <?code-excerpt "lib/my_banner_ad.dart (adUnitId)"?>
     ```dart
-      final String adUnitId = Platform.isAndroid
+    final String adUnitId = Platform.isAndroid
         // Use this ad unit on Android...
         ? 'ca-app-pub-3940256099942544/6300978111'
         // ... or this one on iOS.
@@ -305,6 +321,7 @@ and [Ad Manager](https://admanager.google.com/).
 The following code implements a simple stateful widget that loads a
 banner ad and shows it.
 
+<?code-excerpt "lib/my_banner_ad.dart"?>
 ```dart
 import 'dart:io';
 
@@ -312,86 +329,87 @@ import 'package:flutter/widgets.dart';
 import 'package:google_mobile_ads/google_mobile_ads.dart';
 
 class MyBannerAdWidget extends StatefulWidget {
- /// The requested size of the banner. Defaults to [AdSize.banner].
- final AdSize adSize;
-
- /// The AdMob ad unit to show.
- ///
- /// TODO: replace this test ad unit with your own ad unit
- final String adUnitId = Platform.isAndroid
-     // Use this ad unit on Android...
-     ? 'ca-app-pub-3940256099942544/6300978111'
-     // ... or this one on iOS.
-     : 'ca-app-pub-3940256099942544/2934735716';
-
- MyBannerAdWidget({
-   super.key,
-   this.adSize = AdSize.banner,
- });
-
- @override
- State<MyBannerAdWidget> createState() => _MyBannerAdWidgetState();
+  /// The requested size of the banner. Defaults to [AdSize.banner].
+  final AdSize adSize;
+
+  /// The AdMob ad unit to show.
+  ///
+  /// TODO: replace this test ad unit with your own ad unit
+  final String adUnitId = Platform.isAndroid
+      // Use this ad unit on Android...
+      ? 'ca-app-pub-3940256099942544/6300978111'
+      // ... or this one on iOS.
+      : 'ca-app-pub-3940256099942544/2934735716';
+
+  MyBannerAdWidget({
+    super.key,
+    this.adSize = AdSize.banner,
+  });
+
+  @override
+  State<MyBannerAdWidget> createState() => _MyBannerAdWidgetState();
 }
 
 class _MyBannerAdWidgetState extends State<MyBannerAdWidget> {
- /// The banner ad to show. This is `null` until the ad is actually loaded.
- BannerAd? _bannerAd;
-
- @override
- Widget build(BuildContext context) {
-   return SafeArea(
-     child: SizedBox(
-       width: widget.adSize.width.toDouble(),
-       height: widget.adSize.height.toDouble(),
-       child: _bannerAd == null
-           // Nothing to render yet.
-           ? SizedBox()
-           // The actual ad.
-           : AdWidget(ad: _bannerAd!),
-     ),
-   );
- }
-
- @override
- void initState() {
-   super.initState();
-   _loadAd();
- }
-
- @override
- void dispose() {
-   _bannerAd?.dispose();
-   super.dispose();
- }
-
- /// Loads a banner ad.
- void _loadAd() {
-   final bannerAd = BannerAd(
-     size: widget.adSize,
-     adUnitId: widget.adUnitId,
-     request: const AdRequest(),
-     listener: BannerAdListener(
-       // Called when an ad is successfully received.
-       onAdLoaded: (ad) {
-         if (!mounted) {
-           ad.dispose();
-           return;
-         }
-         setState(() {
-           _bannerAd = ad as BannerAd;
-         });
-       },
-       // Called when an ad request failed.
-       onAdFailedToLoad: (ad, error) {
-         debugPrint('BannerAd failed to load: $error');
-         ad.dispose();
-       },
-     ),
-   );
-
-   // Start loading.
-   bannerAd.load();
- }
+  /// The banner ad to show. This is `null` until the ad is actually loaded.
+  BannerAd? _bannerAd;
+
+  @override
+  Widget build(BuildContext context) {
+    return SafeArea(
+      child: SizedBox(
+        width: widget.adSize.width.toDouble(),
+        height: widget.adSize.height.toDouble(),
+        child: _bannerAd == null
+        // Nothing to render yet.
+            ? SizedBox()
+        // The actual ad.
+            : AdWidget(ad: _bannerAd!),
+      ),
+    );
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    _loadAd();
+  }
+
+  @override
+  void dispose() {
+    _bannerAd?.dispose();
+    super.dispose();
+  }
+
+  /// Loads a banner ad.
+  void _loadAd() {
+    final bannerAd = BannerAd(
+      size: widget.adSize,
+      adUnitId: widget.adUnitId,
+      request: const AdRequest(),
+      listener: BannerAdListener(
+        // Called when an ad is successfully received.
+        onAdLoaded: (ad) {
+          if (!mounted) {
+            ad.dispose();
+            return;
+          }
+          setState(() {
+            _bannerAd = ad as BannerAd;
+          });
+        },
+        // Called when an ad request failed.
+        onAdFailedToLoad: (ad, error) {
+          debugPrint('BannerAd failed to load: $error');
+          ad.dispose();
+        },
+      ),
+    );
+
+    // Start loading.
+    bannerAd.load();
+  }
+
 }
 ```
 
diff --git a/src/dash/index.md b/src/dash/index.md
index da5a24e77a..612d1e00ba 100644
--- a/src/dash/index.md
+++ b/src/dash/index.md
@@ -5,6 +5,8 @@ description: Learn more about the Flutter and Dart mascot, Dash.
 description: 了解关于 Flutter 和 Dart 的吉祥物 Dash 的内容。
 ---
 
+{% include docs/yt_shims.liquid %}
+
 This is Dash:
 
 这是 Dash：
@@ -101,8 +103,6 @@ Here are some early mockups and one of the first prototypes:
 ![First prototype]({{site.url}}/assets/images/dash/early-dash-sketches5.jpg){:width="50%"}<br>
 <t>The first prototype had uneven eyes</t><t>初版原型的单只眼睛并不是对称的</t>
 
-[event website]: https://events.dartlang.org/2018/dartconf/
-
 ## Why a hummingbird?
 
 ## 为什么是一只蜂鸟？
@@ -133,7 +133,7 @@ Shams 为 Dash 指定了颜色的应用范围、尾巴的形状、一小簇头
 ![The first Dash prototypes]({{site.url}}/assets/images/dash/dash-prototypes.jpg){:width="35%"} ![The first Dash prototypes]({{site.url}}/assets/images/dash/dash-prototypes2.jpg){:width="35%"}<br>
 
 <t>Introducing Dash at the January 2018 Dart Conference:</t><t>在 2018 Dart 会议上介绍 Dash：</t>
-<iframe width="541" height="350" src="{{ site.youtube-site }}/embed/R5vIUjRZaZA" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="541" height="350" src="{{yt-embed}}/R5vIUjRZaZA" title="在 2018 Dart 会议上介绍 Dash" {{yt-set}}></iframe>
 
 While the manufacturing process was proceeding,
 Shams chose a name for the plushy: Dash,
@@ -152,8 +152,7 @@ They were eagerly adopted by Dart _and_ Flutter enthusiasts.
 许多箱 Dash 毛绒玩具赶在会议开始前送到了南加州。
 它们受到了大量 **Dart 和 Flutter** 爱好者的喜爱。
 
-The people have spoken,
-so Dash is now the mascot for Flutter **and** Dart.
+The people have spoken, so Dash is now the mascot for Flutter **and** Dart.
 
 Flutter 和 Dart 的演讲者都携带着 Dash 进行了演讲，
 所以 Dash 就成为了 **Flutter 和 Dart** 的吉祥物。
@@ -196,7 +195,7 @@ Dash 2.0 and 2.1
 
   Dash 有自己的 [Instagram 账户][Instagram account]。
 
-* Dash has a **straight** beak. 
+* Dash has a **straight** beak.
   **Please, don't depict Dash with a curved beak.**
 
   Dash 的喙是直的。**请不要用弯的喙描绘 Dash。**
@@ -215,7 +214,7 @@ Dash 2.0 and 2.1
   巨型 Dash 首次在 2019年 12 月 11 日纽约布鲁克林的
   [Flutter Interact][] 活动中亮相。
 
-  <iframe width="560" height="315" src="{{site.youtube-site}}/embed/EgBMGDtHZhE" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+  <iframe width="560" height="315" src="{{yt-embed}}/EgBMGDtHZhE" title="Watch the Flutter Interact 2019 highlights" {{yt-set}}></iframe>
   
 * We also have a Dash puppet that Shams made from
   one of the first plushies.
@@ -232,20 +231,11 @@ Dash 2.0 and 2.1
   我们的许多 YouTube 视频都有 Dart 布偶的出镜，由我们早期（且深受大家喜爱）的
   Flutter 开发技术推广工程师 Emily Fortuna 配音。
 
-  <iframe width="560" height="315" src="{{site.youtube-site}}/embed/dsiLVNDJ3t0" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
-  <iframe width="560" height="315" src="{{site.youtube-site}}/embed/oyy_1CjNdBU" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
-{% comment %}
-I haven't been able to figure out how to play the mp4 file...
-* Here is a sound recording of Dash's chirp, by Kathy Walrath,
-  the Dart writer.
-![Dash's chirp]({{site.url}}/assets/images/dash/DartDartDarrrrrrt.mp4){:width="50%"}<br>
-{% endcomment %}
+  <iframe width="560" height="315" src="{{yt-embed}}/oyy_1CjNdBU" title="构建基于 Flutter 的播客应用程序 DashCast" {{yt-set}}></iframe>
+  <iframe width="560" height="315" src="{{yt-embed}}/dsiLVNDJ3t0" title="重温基于 Flutter 的播客应用程序 DashCast" {{yt-set}}></iframe>
+
 <br>
 !["Born to Hot Reload" jacket]({{site.url}}/assets/images/dash/ShamsDashJacket.png){:width="35%"}<br>
 
-[Flutter Interact]: {{site.youtube-site}}/playlist?list=PLjxrf2q8roU0o0wKRJTjyN0pSUA6TI8lg
+[Flutter Interact]: {{yt-playlist}}PLjxrf2q8roU0o0wKRJTjyN0pSUA6TI8lg
 [Instagram account]: https://www.instagram.com/dash_the_dartlang_plushy/
-
-{% comment %}
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/sPW7nDBqt8w" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
-{% endcomment %}
diff --git a/src/data-and-backend/firebase.md b/src/data-and-backend/firebase.md
index d61c812f14..e580d79933 100644
--- a/src/data-and-backend/firebase.md
+++ b/src/data-and-backend/firebase.md
@@ -7,6 +7,11 @@ tags: Firebase,Firestore,数据调用和后端
 keywords: 使用Firebase服务
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
+## Introduction
+
 Firebase is a Backend-as-a-Service (BaaS) app development platform
 that provides hosted backend services such as a realtime database,
 cloud storage, authentication, crash reporting, machine learning,
@@ -16,63 +21,95 @@ Firebase 是一个用于开发 BaaS 应用的开发平台，
 它提供了诸如实时数据库、云存储、鉴权、Crash 上报、
 机器学习、远程配置以及托管你的静态文件等后台托管服务。
 
-Firebase supports Flutter. For more information, see:
+## Flutter and Firebase resources
+
+## Flutter 和 Firebase 资源
 
-Firebase 可以支持 Flutter，如果你想获取更多信息，可以查阅下面这些链接：
+Firebase supports Flutter. To learn more,
+check out the following resources.
 
-* The [Firebase plugins][] page
+Firebase 支持 Flutter。
+请查看以下资源，了解更多信息。
 
-  [Firebase 插件][Firebase plugins] 页面
+### Documentation
+
+### 文档
 
 * [Getting started with Firebase and Flutter][started]
 
   [将 Firebase 添加到您的 Flutter 应用][started]
 
-* [Get to know Firebase for Flutter][workshop] video workshop
-  based on the codelab
+* [Firebase plugins][]
+
+  [Firebase 插件][Firebase plugins]
+
+### Blog Posts
+
+### 博客文章
+
+[Use Firebase to host your Flutter app on the web][article]
+
+[使用 Firebase 来部署你的 Flutter Web 应用][article]
+
+### Tutorials
+
+### 教程
+
+Get to know Firebase for Flutter
+
+了解如何在 Flutter 中使用 Firebase
+
+* [tutorial][codelab1]
+
+  [教程（基于 codelab）][codelab1]
+
+* [video workshop][workshop]
+
+  [教程（基于 workshop）][workshop]
+
+## Flutter and Firebase community resources
+
+## Flutter 和 Firebase 社区资源
+
+The Flutter community created the following useful resources.
 
-  (基于 workshop) [了解如何在 Flutter 中使用 Firebase][workshop]
+Flutter 社区创建了以下实用的资源。
 
-* [Get to know Firebase for Flutter][codelab1] codelab
+### Blog Posts
 
-  (基于 codelab) [了解如何在 Flutter 中使用 Firebase][codelab1]
+### 博客文章
 
-* [Use Firebase to host your Flutter app on the web][article]
+[Building chat app with Flutter and Firebase][chat app]
 
-  [使用 Firebase 来部署你的 Flutter Web 应用][article]
+[在 Flutter 中使用 Firebase 构建聊天应用][chat app]
 
-Also, the Flutter community has created docs and
-videos that you might find useful. Here are a few:
+### Videos
 
-当然，Flutter 社区也创建了一些可能会对你有用的文档：
-   
-* [Building chat app with Flutter and Firebase][chat app]
-   
-  [在 Flutter 中使用 Firebase 构建聊天应用][chat app]（文章）
+### 视频
 
-* [Using Firestore as a backend to your Flutter app][video] (video)
+* [Using Firestore as a backend to your Flutter app][video]
 
-  [在你的 Flutter 应用中使用 Firestore 作为后端][video]（视频）
+  [在你的 Flutter 应用中使用 Firestore 作为后端][video]
 
-* [Live Coding Firebase Authentication with Flutter][video2] (video)
+* [Live Coding Firebase Authentication with Flutter][video2]
 
-  [在 Flutter 中使用 Firebase 进行验证的代码演示][video2]（视频）
+  [在 Flutter 中使用 Firebase 进行验证的代码演示][video2]
 
-* [Flutter & Firebase Auth 01][video3] (video)
+* [Flutter & Firebase Auth 01][video3]
 
-  [使用 Flutter & Firebase 进行验证 01][video3]（视频）
+  [使用 Flutter & Firebase 进行验证 01][video3]
 
-* [Flutter: Firebase Tutorial Part 1 - Auth and Sign in][video4] (video)
+* [Flutter: Firebase Tutorial Part 1 - Auth and Sign in][video4]
 
-  [Flutter: Firebase 教程第一部分|验证与登录][video4]（视频）
+  [Flutter: Firebase 教程第一部分|验证与登录][video4]
 
 [article]: {{site.flutter-medium}}/must-try-use-firebase-to-host-your-flutter-app-on-the-web-852ee533a469
 [chat app]: {{site.medium}}/flutter-community/building-a-chat-app-with-flutter-and-firebase-from-scratch-9eaa7f41782e
 [codelab1]: {{site.codelabs}}/codelabs/firebase-get-to-know-flutter
 [Firebase plugins]: {{site.firebase}}/docs/flutter/setup#available-plugins
 [started]: {{site.firebase}}/docs/flutter/setup
-[video]: https://www.bilibili.com/video/BV184411575K/
-[video2]: {{site.youtube-site}}/watch?v=OlcYP6UXlm8
-[video3]: {{site.youtube-site}}/watch?v=u_Lyx8KJWpg
-[video4]: {{site.youtube-site}}/watch?v=13-jNF984C0
-[workshop]: https://www.bilibili.com/video/BV14b4y1o7Wn/
+[video]: {{bili-video}}/BV184411575K/
+[video2]: {{yt-watch}}/OlcYP6UXlm8
+[video3]: {{yt-watch}}/u_Lyx8KJWpg
+[video4]: {{yt-watch}}/13-jNF984C0
+[workshop]: {{bili-video}}/BV14b4y1o7Wn/
diff --git a/src/data-and-backend/google-apis.md b/src/data-and-backend/google-apis.md
index 6c71d6d432..4a738e448a 100644
--- a/src/data-and-backend/google-apis.md
+++ b/src/data-and-backend/google-apis.md
@@ -51,9 +51,9 @@ To add authentication to Firebase explicitly, check out the
 codelab and the
 [Get Started with Firebase Authentication on Flutter][fb-auth] docs.
  
-[fb-lab]: https://firebase.google.com/codelabs/firebase-auth-in-flutter-apps
+[fb-lab]: {{site.firebase}}/codelabs/firebase-auth-in-flutter-apps
 [Calendar]: {{site.pub-api}}/googleapis/latest/calendar_v3/calendar_v3-library.html
-[fb-auth]: https://firebase.google.com/docs/auth/flutter/start
+[fb-auth]: {{site.firebase}}/docs/auth/flutter/start
 [Gmail]: {{site.pub-api}}/googleapis/latest/gmail_v1/gmail_v1-library.html
 [Google APIs package]: {{site.pub-pkg}}/googleapis
 [service accounts]: https://cloud.google.com/iam/docs/service-account-overview
diff --git a/src/data-and-backend/state-mgmt/options.md b/src/data-and-backend/state-mgmt/options.md
index cdf6882ec2..abba5b37ed 100644
--- a/src/data-and-backend/state-mgmt/options.md
+++ b/src/data-and-backend/state-mgmt/options.md
@@ -11,6 +11,9 @@ prev:
   path: /docs/data-and-backend/state-mgmt/simple
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 State management is a complex topic.
 If you feel that some of your questions haven't been answered,
 or that the approach described on these pages
@@ -30,13 +33,13 @@ many of which have been contributed by the Flutter community:
 
 ## 总体概览
 
-Things to review before selecting an approach. 
+Things to review before selecting an approach.
 
 在选择一个具体内容前，您可以先查看以下几项。
 
 * [Introduction to state management][],
   which is the beginning of this very section
-  (for those of you who arrived directly to this _Options_ page 
+  (for those of you who arrived directly to this _Options_ page
   and missed the previous pages)
 
   [状态管理的介绍][Introduction to state management]。
@@ -54,10 +57,9 @@ Things to review before selecting an approach.
   [Flutter 架构实例 (Flutter Architecture Samples)][Flutter Architecture Samples]，
   Brian Egan 著。
 
-
 [Flutter Architecture Samples]: https://fluttersamples.com/
 [Introduction to state management]: {{site.url}}/data-and-backend/state-mgmt/intro
-[Pragmatic State Management in Flutter]: {{site.youtube-site}}/watch?v=d_m5csmrf7I
+[Pragmatic State Management in Flutter]: {{yt-watch}}?v=d_m5csmrf7I
 
 ## Provider
 
@@ -124,7 +126,7 @@ use `InheritedWidget`:
 
 以下讲师指导的视频 workshop 介绍了如何使用 `InheritedWidget`：
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=248744553&bvid=BV1Wv411W7yF&cid=354736130&page=1&autoplay=false" title="Bilibili video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=248744553&bvid=BV1Wv411W7yF&cid=354736130&page=1&autoplay=false" title="如何使用 inherited widget 管理应用状态" {{bili-set}}></iframe>
 
 Other useful docs include:
 
@@ -153,7 +155,6 @@ Other useful docs include:
 
   [Widget - State - Context - InheritedWidget][]，Didier Bolelens 著。
 
-
 [InheritedWidget docs]: {{site.api}}/flutter/widgets/InheritedWidget-class.html
 [Inheriting Widgets]: {{site.medium}}/@mehmetf_71205/inheriting-widgets-b7ac56dbbeb1
 [Managing Flutter Application State With InheritedWidgets]: {{site.flutter-medium}}/managing-flutter-application-state-with-inheritedwidgets-1140452befe1
@@ -227,12 +228,11 @@ A state container approach familiar to many web developers.
 
   [使用 Redux 更好地组织 Flutter 应用的代码以管理项目目标 (Redux and epics for better-organized code in Flutter apps)][Redux and epics for better-organized code in Flutter apps]，Nihad Delic 著。
 
-
 [Accompanying article on Medium]: {{site.flutter-medium}}/animation-management-with-flutter-and-flux-redux-94729e6585fa
-[Animation Management with Redux and Flutter]: {{site.youtube-site}}/watch?v=9ZkLtr0Fbgk
+[Animation Management with Redux and Flutter]: {{yt-watch}}?v=9ZkLtr0Fbgk
 [Async Redux–Redux without boilerplate. Allows for both sync and async reducers]: {{site.pub}}/packages/async_redux
 [Building a (large) Flutter app with Redux]: https://hillelcoren.com/2018/06/01/building-a-large-flutter-app-with-redux/
-[Building a TODO application (CRUD) in Flutter with Redux&mdash;Part 1]: {{site.youtube-site}}/watch?v=Wj216eSBBWs
+[Building a TODO application (CRUD) in Flutter with Redux&mdash;Part 1]: {{yt-watch}}?v=Wj216eSBBWs
 [Fish-Redux–An assembled flutter application framework based on Redux]: {{site.github}}/alibaba/fish-redux/
 [Flutter Redux Thunk, an example]: {{site.medium}}/flutterpub/flutter-redux-thunk-27c2f2b80a3b
 [Flutter meets Redux: The Redux way of managing Flutter applications state]: {{site.medium}}/@thisisamir98/flutter-meets-redux-the-redux-way-of-managing-flutter-applications-state-f60ef693b509
@@ -246,7 +246,7 @@ A state container approach familiar to many web developers.
 ## Fish-Redux
 
 Fish Redux is an assembled flutter application framework
-based on Redux state management. 
+based on Redux state management.
 It is suitable for building medium and large applications.
 
 Fish Redux 是一个基于 Redux 状态管理的组合式 Flutter 应用框架，
@@ -267,14 +267,13 @@ Fish Redux 是一个基于 Redux 状态管理的组合式 Flutter 应用框架
   [Flutter-Movie][] 展示如何使用 Fish Redux 的简单示例应用，
   包含 30 多个页面、graphql、支付 api 和媒体播放器等。
 
-
 [Fish-Redux-Library]: {{site.pub-pkg}}/fish_redux
 [Fish-Redux-Source]: {{site.github}}/alibaba/fish-redux
 [Flutter-Movie]: {{site.github}}/o1298098/Flutter-Movie
 
 ## BLoC / Rx
 
-A family of stream/observable based patterns. 
+A family of stream/observable based patterns.
 
 基于流/观察者模式的系列。
 
@@ -292,8 +291,7 @@ A family of stream/observable based patterns.
   by Didier Boelens
 
   [响应式编程 - 流 - BLoC - 用例 (Reactive Programming - Streams - BLoC - Practical Use Cases)][Reactive Programming - Streams - BLoC - Practical Use Cases]，
-    Didier Boelens 著。
-
+  Didier Boelens 著。
 
 [Architect your Flutter project using BLoC pattern]: {{site.medium}}/flutterpub/architecting-your-flutter-project-bd04e144a8f1
 [BloC Library]: https://felangel.github.io/bloc
@@ -315,7 +313,7 @@ doesn't need a `BuildContext`.
 {{site.alert.note}}
   To learn more, watch this short Package of the Week video on the GetIt package:
 
-  <iframe class="full-width" src="{{site.youtube-site}}/embed/f9XQD5mf6FY" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+  <iframe class="full-width" src="{{yt-embed}}/f9XQD5mf6FY" title="Learn about the GetIt Flutter Package" {{yt-set}}></iframe>
 {{site.alert.end}}
 
 [Flutter state management for minimalists]: {{site.medium}}/flutter-community/flutter-state-management-for-minimalists-4c71a2f2f0c1?sk=6f9cedfb550ca9cc7f88317e2e7055a0
@@ -341,7 +339,7 @@ A popular library based on observables and reactions.
 
   [Flutter：使用 MobX 进行状态管理 (Flutter: State Management with Mobx)][Flutter: State Management with Mobx]
 
-[Flutter: State Management with Mobx]: https://www.bilibili.com/video/BV1Gt411K7JD/
+[Flutter: State Management with Mobx]: {{bili-video}}/BV1Gt411K7JD/
 [Getting started with MobX.dart]: https://mobx.netlify.com/getting-started
 [MobX.dart, Hassle free state-management for your Dart and Flutter apps]: {{site.github}}/mobxjs/mobx.dart
 
@@ -355,10 +353,9 @@ locators too.
 基于 `ValueNotifiers` 的命令式的状态管理，能与 [GetIt](#getit) 完美结合使用，
 也可以与 `Provider` 或者其他 locators 配合使用。
 
-* [Flutter Command package][] 
+* [Flutter Command package][]
 * [RxCommand package][], `Stream` based implementation.
 
-
 [Flutter Command package]: {{site.pub-pkg}}/flutter_command
 [RxCommand package]: {{site.pub-pkg}}/rx_command
 
@@ -371,9 +368,6 @@ This package promotes the separation of concerns.
 一个使用 `InheritedWidget` 作为核心实现的状态管理库。受到 recoil 的启发，该库提供了分治的解决方式。
 
 * [Binder package][]
-
-  [Binder 包][Binder package]
-
 * [Binder examples][]
 
   [Binder 样例][Binder examples]
@@ -383,7 +377,6 @@ This package promotes the separation of concerns.
 
   [Binder snippets][] 是一个 vscode 插件，能够将代码拆分以获得更高的生产力
 
-
 [Binder examples]: {{site.github}}/letsar/binder/tree/main/examples
 [Binder package]: {{site.pub-pkg}}/binder
 [Binder snippets]: https://marketplace.visualstudio.com/items?itemName=romain-rastel.flutter-binder-snippets
@@ -415,7 +408,6 @@ For more information, see the following info:
 
 * [States Rebuilder documentation][]
 
-
 [States Rebuilder]: {{site.github}}/GIfatahTH/states_rebuilder
 [States Rebuilder documentation]: {{site.github}}/GIfatahTH/states_rebuilder/wiki
 
@@ -434,12 +426,11 @@ For more information, refer to the following resources:
   (blog post written in Portuguese but can be auto-translated)
 * [VIDEO: Flutter Triple Pattern by Kevlin Ossada][] (recorded in English)
 
-
 [Triple documentation]: https://triple.flutterando.com.br/
 [Flutter Triple package]: {{site.pub-pkg}}/flutter_triple
 [Segmented State pattern]: https://triple.flutterando.com.br/docs/intro/
 [Triple Pattern: A new pattern for state management in Flutter]: https://blog.flutterando.com.br/triple-pattern-um-novo-padr%C3%A3o-para-ger%C3%AAncia-de-estado-no-flutter-2e693a0f4c3e
-[VIDEO: Flutter Triple Pattern by Kevlin Ossada]: {{site.youtube-site}}/watch?v=dXc3tR15AoA
+[VIDEO: Flutter Triple Pattern by Kevlin Ossada]: {{yt-watch}}?v=dXc3tR15AoA
 
 ## solidart
 
@@ -460,11 +451,10 @@ management in Flutter. It might help Flutter newcomers add reactivity to their U
 without the complexity of the mechanisms described before.
 The `flutter_reactive_value` library defines the `reactiveValue(BuildContext)`
 extension method on `ValueNotifier`. This extension allows a `Widget` to
-fetch the current value of the `ValueNotifier` and 
+fetch the current value of the `ValueNotifier` and
 subscribe the `Widget` to changes in the value of the `ValueNotifier`.
 If the value of the `ValueNotifier` changes, `Widget` rebuilds.
 
 * [`flutter_reactive_value`][] source and documentation
 
 [`flutter_reactive_value`]: {{site.github}}/lukehutch/flutter_reactive_value
-
diff --git a/src/data-and-backend/state-mgmt/simple.md b/src/data-and-backend/state-mgmt/simple.md
index 4ffbd7b79e..b84efbedbd 100644
--- a/src/data-and-backend/state-mgmt/simple.md
+++ b/src/data-and-backend/state-mgmt/simple.md
@@ -656,9 +656,8 @@ master these skills.
 创建一个包含状态管理应用的能力。
 试着自己用 `provider` 构建一个应用来掌握这些技能吧！
 
-
-[built with `provider`]: {{site.github}}/flutter/samples/tree/main/provider_counter
-[check out the example]: {{site.github}}/flutter/samples/tree/main/provider_shopper
+[built with `provider`]: {{site.repo.samples}}/tree/main/provider_counter
+[check out the example]: {{site.repo.samples}}/tree/main/provider_shopper
 [declarative UI programming]: {{site.url}}/data-and-backend/state-mgmt/declarative
 [ephemeral and app state]: {{site.url}}/data-and-backend/state-mgmt/ephemeral-vs-app
 [options page]: {{site.url}}/data-and-backend/state-mgmt/options
diff --git a/src/deployment/android.md b/src/deployment/android.md
index 218144e325..1fe8e7f968 100644
--- a/src/deployment/android.md
+++ b/src/deployment/android.md
@@ -1012,7 +1012,7 @@ The resulting app bundle or APK files are located in
 [Platform Views]: {{site.url}}/platform-integration/android/platform-views
 [play]: {{site.android-dev}}/distribute
 [R8]: {{site.android-dev}}/studio/build/shrink-code
-[Sign your app]: https://developer.android.com/studio/publish/app-signing.html#generate-key
+[Sign your app]: {{site.android-dev}}/studio/publish/app-signing.html#generate-key
 [upload-bundle]: {{site.android-dev}}/studio/publish/upload-bundle
 [Version your app]: {{site.android-dev}}/studio/publish/versioning
 [x86-64]: {{site.android-dev}}/ndk/guides/abis#86-64
diff --git a/src/deployment/cd.md b/src/deployment/cd.md
index 9af5c381a2..9f0a6e6e32 100644
--- a/src/deployment/cd.md
+++ b/src/deployment/cd.md
@@ -609,9 +609,9 @@ information.
 [Match]: https://docs.fastlane.tools/actions/match/
 [Supply setup steps]: https://docs.fastlane.tools/getting-started/android/setup/#setting-up-supply
 [Travis]: https://travis-ci.org/
-[Apple Developer Program]: https://developer.apple.com/programs
-[Xcode Cloud]: https://developer.apple.com/xcode-cloud
-[Xcode Cloud workflow]: https://developer.apple.com/documentation/xcode/xcode-cloud-workflow-reference
-[custom build scripts]: https://developer.apple.com/documentation/xcode/writing-custom-build-scripts
-[predefined environment variables]: https://developer.apple.com/documentation/xcode/environment-variable-reference
-[Setting the next build number for Xcode Cloud builds]: https://developer.apple.com/documentation/xcode/setting-the-next-build-number-for-xcode-cloud-builds#Set-the-next-build-number-to-a-custom-value
+[Apple Developer Program]: {{site.apple-dev}}/programs
+[Xcode Cloud]: {{site.apple-dev}}/xcode-cloud
+[Xcode Cloud workflow]: {{site.apple-dev}}/documentation/xcode/xcode-cloud-workflow-reference
+[custom build scripts]: {{site.apple-dev}}/documentation/xcode/writing-custom-build-scripts
+[predefined environment variables]: {{site.apple-dev}}/documentation/xcode/environment-variable-reference
+[Setting the next build number for Xcode Cloud builds]: {{site.apple-dev}}/documentation/xcode/setting-the-next-build-number-for-xcode-cloud-builds#Set-the-next-build-number-to-a-custom-value
diff --git a/src/deployment/flavors.md b/src/deployment/flavors.md
index d353a8a8d9..9752df1252 100644
--- a/src/deployment/flavors.md
+++ b/src/deployment/flavors.md
@@ -80,7 +80,7 @@ for the `free` scheme.
 ![Step 3 Xcode image](/assets/images/docs/flavors/step3-ios-build-config.png){:width="100%"}
 {{site.alert.note}}
   Your configurations should be based on your **Debug.xconfig** or **Release.xcconfig**
-  file, not the **Pods-Runner.xcconfigs**. You can check this by expanding the configuration names. 
+  file, not the **Pods-Runner.xcconfigs**. You can check this by expanding the configuration names.
 {{site.alert.end}}
 
 </li>
@@ -118,7 +118,7 @@ In this example, we set the **Debug-free** value to equal
 Change the app bundle identifier to differentiate between schemes.
 In **Product Bundle Identifier**, append `.free` to each -free scheme value.
 
-![Step 1 using flavors image.](/assets/images/docs/flavors/step-1-using-flavors-free.png){:width="100%"}  
+![Step 1 using flavors image.](/assets/images/docs/flavors/step-1-using-flavors-free.png){:width="100%"}
 
 </li>
 <li markdown=1>
@@ -126,12 +126,12 @@ In **Product Bundle Identifier**, append `.free` to each -free scheme value.
 In the **Build Settings**, set the **Product Name** value to match each flavor.
 For example, add Debug Free.
 
-![Step 2 using flavors image.](/assets/images/docs/flavors/step-2-using-flavors-free.png){:width="100%"}  
+![Step 2 using flavors image.](/assets/images/docs/flavors/step-2-using-flavors-free.png){:width="100%"}
 
 </li>
 <li markdown=1>
 
-Add the display name to **Info.plist**. Update the **Bundle Display Name** 
+Add the display name to **Info.plist**. Update the **Bundle Display Name**
 value to `$(PRODUCT_NAME)`.
 
 ![Step 3 using flavors image.](/assets/images/docs/flavors/step3-using-flavors.png){:width="100%"}
@@ -241,6 +241,35 @@ at the command line, or in your IDE.
 For examples of build flavors for [iOS (Xcode)][] and [Android][],
 check out the integration test samples in the [Flutter repo][].
 
+## Conditionally bundling assets based on flavor
+
+If you aren't familiar with how to add assets to your app, see
+[Adding assets and images][].
+
+If you have assets that are only used in a specific flavor in your app, you can
+configure them to only be bundled into your app when building for that flavor.
+This prevents your app bundle size from being bloated by unused assets.
+
+Here is an example:
+
+```yaml
+flutter:
+  assets:
+    - assets/common/
+    - path: assets/free/
+      flavors:
+        - free
+    - path: assets/premium/
+      flavors:
+        - premium
+```
+
+In this example, files within the `assets/common/` directory will always be bundled
+when app is built during `flutter run` or `flutter build`. Files within the
+`assets/free/` directory are bundled _only_ when the `--flavor` option is set
+to `free`. Similarly, files within the `assets/premium` directory are
+bundled _only_ if `--flavor` is set to `premium`.
+
 ## More information
 
 For more information on creating and using flavors, check out
@@ -261,6 +290,7 @@ For packages that support creating flavors, check out the following:
 [Flutter repo]: {{site.repo.flutter}}/blob/master/dev/integration_tests/flavors/lib/main.dart
 [iOS (Xcode)]: {{site.repo.flutter}}/tree/master/dev/integration_tests/flavors/ios
 [Android]: {{site.repo.flutter}}/tree/master/dev/integration_tests/flavors/android
+[Adding assets and images]: {{site.url}}/ui/assets/assets-and-images
 [Build flavors in Flutter (Android and iOS) with different Firebase projects per flavor Flutter Ready to Go]: {{site.medium}}/@animeshjain/build-flavors-in-flutter-android-and-ios-with-different-firebase-projects-per-flavor-27c5c5dac10b
 [Flavoring Flutter Applications (Android & iOS)]: {{site.medium}}/flutter-community/flavoring-flutter-applications-android-ios-ea39d3155346
 [Flutter Flavors Setup with multiple Firebase Environments using FlutterFire and Very Good CLI]: https://codewithandrea.com/articles/flutter-flavors-for-firebase-apps/
diff --git a/src/deployment/ios.md b/src/deployment/ios.md
index a57d326791..a001f2cfec 100644
--- a/src/deployment/ios.md
+++ b/src/deployment/ios.md
@@ -9,6 +9,8 @@ tags: 发布, iOS
 keywords: 上传App Store,发布Flutter应用
 ---
 
+{% include docs/yt_shims.liquid %}
+
 This guide provides a step-by-step walkthrough of releasing a
 Flutter app to the [App Store][appstore] and [TestFlight][].
 
@@ -26,17 +28,14 @@ must use a device running macOS to follow this guide.
 你必须要有一个运行着 macOS 系统的设备来学习本指南文档。
 
 Before beginning the process of releasing your app,
-ensure that it meets
-Apple's [App Review Guidelines][appreview].
+ensure that it meets Apple's [App Review Guidelines][appreview].
 
 在开始发布你的 app 的进程之前，
 确保你已经看过了 Apple 的 [App Store 审核指南][appreview_cn]。
 
 To publish your app to the App Store,
-you must first enroll in the
-[Apple Developer Program][devprogram].
-You can read more about the various
-membership options in Apple's
+you must first enroll in the [Apple Developer Program][devprogram].
+You can read more about the various membership options in Apple's
 [Choosing a Membership][devprogram_membership] guide.
 
 想要发布你的 app 到 App Store，
@@ -50,13 +49,13 @@ membership options in Apple's
 
 For those who prefer video over text,
 the following video covers the same material as this guide.
-<iframe width="560" height="315" src="https://www.youtube.com/embed/iE2bpP56QKc?si=tHqWYKNTN1H8H9mC" title="Release an iOS app with Flutter in 7 steps" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
 
 如果你想观看视频而非文字介绍，
 以下这个视频会指导你如何进行准备工作。
-<iframe width="560" height="315" src="https://www.youtube.com/embed/iE2bpP56QKc?si=tHqWYKNTN1H8H9mC" title="Release an iOS app with Flutter in 7 steps" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
 
-[Release an iOS app with Flutter in 7 steps](https://www.youtube.com/watch?v=iE2bpP56QKc)
+<iframe width="560" height="315" src="{{yt-embed}}/iE2bpP56QKc?si=tHqWYKNTN1H8H9mC" title="用 Flutter 发布 iOS 应用程序，只需 7 个步骤" {{yt-set}}></iframe>
+
+[Release an iOS app with Flutter in 7 steps]({{yt-watch}}?v=iE2bpP56QKc)
 
 ## Register your app on App Store Connect
 
@@ -307,13 +306,13 @@ app's icons:
 ## 添加启动图
 
 Similar to the app icon,
-you can also replace the placeholder launch image: 
+you can also replace the placeholder launch image:
 
 与应用图标类似，你可以通过下面的方法替换占位的启动图:
 
 1. In the Xcode project navigator,
    select `Assets.xcassets` in the `Runner` folder.
-   Update the placeholder launch image with your own launch image. 
+   Update the placeholder launch image with your own launch image.
 
    在 Xcode 的工程导航中选择 `Runner` 文件夹下的 `Assets.xcassets`，
    然后将自己的启动图替换掉占位启动图即可。
@@ -349,6 +348,7 @@ and update the following line:
 ```yaml
 version: 1.0.0+1
 ```
+
 The version number is three numbers separated by dots,
 such as `1.0.0` in the example above, followed by an optional
 build number such as `1` in the example above, separated by a `+`.
@@ -440,7 +440,6 @@ adding the option `--export-method ad-hoc`,
 
 {{site.alert.end}}
 
-
 ### Upload the app bundle to App Store Connect
 
 ### 上传应用套装到 App Store Connect
@@ -467,9 +466,11 @@ Drag and drop the `build/ios/ipa/*.ipa` app bundle into the app.
 Or upload the app bundle from the command line by running:
 
 也可以在命令行执行下面的命令将应用套装上传：
+
 ```bash
 xcrun altool --upload-app --type ios -f build/ios/ipa/*.ipa --apiKey your_api_key --apiIssuer your_issuer_id
 ```
+
 Run `man altool` for details about how to authenticate with the App Store Connect API key.
 
 运行 `man altool` 命令了解如何使用 App Store Connect API 密钥进行认证。
@@ -544,7 +545,7 @@ This step covers creating a build archive and uploading
 your build to App Store Connect using Flutter build commands
 and [Codemagic CLI Tools][codemagic_cli_tools] executed in a terminal
 in the Flutter project directory. This allows you to create a build archive
-with full control of distribution certificates in a temporary keychain 
+with full control of distribution certificates in a temporary keychain
 isolated from your login keychain.
 
 该步骤包含了在 Flutter 项目的目录下，
@@ -849,7 +850,6 @@ detailed overview of the process of releasing an app to the App Store.
 [分发你的应用][distributionguide] 指南，
 提供了详细的发布应用到 App Store 过程的内容。
 
-
 [appicon]: {{site.apple-dev}}/design/human-interface-guidelines/app-icons/
 [appreview]: {{site.apple-dev}}/app-store/review/
 [appsigning]: https://help.apple.com/xcode/mac/current/#/dev154b28f09
diff --git a/src/deployment/web.md b/src/deployment/web.md
index 7982e38b6e..9a6a2a8fbe 100644
--- a/src/deployment/web.md
+++ b/src/deployment/web.md
@@ -302,7 +302,7 @@ so please [give us feedback][] if you see something that doesn't look right.
 [Displaying images on the web]: {{site.url}}/platform-integration/web/web-images
 [Firebase Hosting]: {{site.firebase}}/docs/hosting/frameworks/flutter
 [Firebase framework-aware CLI]: {{site.firebase}}/docs/hosting/frameworks/frameworks-overview
-[install-firebase-cli]: https://firebase.google.com/docs/cli#install_the_firebase_cli
+[install-firebase-cli]: {{site.firebase}}/docs/cli#install_the_firebase_cli
 [GitHub Pages]: https://pages.github.com/
 [give us feedback]: {{site.repo.flutter}}/issues/new?title=%5Bweb%5D:+%3Cdescribe+issue+here%3E&labels=%E2%98%B8+platform-web&body=Describe+your+issue+and+include+the+command+you%27re+running,+flutter_web%20version,+browser+version
 [Google Cloud Hosting]: https://cloud.google.com/solutions/web-hosting
diff --git a/src/embedded/index.md b/src/embedded/index.md
index 493a64c607..71e744c8e3 100644
--- a/src/embedded/index.md
+++ b/src/embedded/index.md
@@ -40,8 +40,8 @@ resources.
 [Discord]: https://discord.com/invite/N7Yshp4
 [Custom Flutter Engine Embedders]: {{site.repo.flutter}}/wiki/Custom-Flutter-Engine-Embedders
 [Flutter architectural overview]: {{site.url}}/resources/architectural-overview
-[Flutter engine `embedder.h` file]: {{site.github}}/flutter/engine/blob/main/shell/platform/embedder/embedder.h
-[Flutter Embedder Engine GLFW example]: {{site.github}}/flutter/engine/tree/main/examples/glfw#flutter-embedder-engine-glfw-example
+[Flutter engine `embedder.h` file]: {{site.repo.engine}}/blob/main/shell/platform/embedder/embedder.h
+[Flutter Embedder Engine GLFW example]: {{site.repo.engine}}/tree/main/examples/glfw#flutter-embedder-engine-glfw-example
 [embedding Flutter in a terminal]: https://github.com/jiahaog/flt
 [Issue 31043]: {{site.repo.flutter}}/issues/31043
 
diff --git a/src/get-started/codelab-web.md b/src/get-started/codelab-web.md
index 8285b93835..47693c2b34 100644
--- a/src/get-started/codelab-web.md
+++ b/src/get-started/codelab-web.md
@@ -17,9 +17,9 @@ js:
 {{site.alert.tip}}
 
   This codelab walks you through writing
-  your first Flutter app on the web, specifically. 
+  your first Flutter app on the web, specifically.
   You might prefer to try
-  [another codelab][first_flutter_codelab] 
+  [another codelab][first_flutter_codelab]
   that takes a more generic approach.
   Note that the codelab on this page
   does work on mobile and desktop
@@ -140,7 +140,7 @@ You'll start with a simple web app that we provide for you.
 启用 Web 开发。<br>
 
 At the command line, perform the following command to
-make sure that you have Flutter installed correctly. 
+make sure that you have Flutter installed correctly.
 
 在命令行观察输出内容，你应该可以看到如下类似的内容，
 说明 Flutter 安装的没问题：
@@ -205,7 +205,7 @@ web-javascript • Google Chrome 105.0.5195.125
 
 ```
 
-The **Chrome** device automatically starts Chrome and enables the use 
+The **Chrome** device automatically starts Chrome and enables the use
 of the Flutter DevTools tooling.
 
 **Chrome** 浏览器会自动启动并启用 Flutter 开发者工具。
@@ -574,7 +574,7 @@ You get that behavior for free.
 
 * The `const` keyword in front of the constructor is very
   important. When Flutter encounters a constant widget, it
-  short-circuits most of the rebuilding work under the hood 
+  short-circuits most of the rebuilding work under the hood
   making the rendering more efficient.
 
   构造函数前面的 `const` 关键字至关重要，
@@ -749,14 +749,14 @@ but becomes enabled when all three text fields contain
   The new widget tree must be created and rendered to screen
   in less than 1/60th of a second to create a smooth visual
   transition—especially for an animation.
-  Luckily Flutter *is* fast.
+  Luckily Flutter _is_ fast.
 
   调用 widget 的 `setState()` 方法通知 Flutter 页面上的 widget 需要重新构建。
   框架将销毁之前的不可变 widget （上面说过 widget 一旦创建不可更改）（包含它的子级 widget） ，
   然后创建一个新的 widget （包含他的子级 widget 树）并将新的 widget 渲染到页面上。
   为了使应用运行顺畅， Flutter 需要快速的销毁和创建 widget。
   新创建的 widget 必须在不到 1/60 秒的时间渲染到页面上，才能创建一个流畅的动画效果。
-  幸运的是 Flutter 就是这么**这么快**。当然如果你愿意的话，也可以使用文本编辑器。
+  幸运的是 Flutter 就是**这么快**。当然如果你愿意的话，也可以使用文本编辑器。
 
 * The `progress` field is defined as a floating value,
   and is updated in the `_updateFormProgress` method.
@@ -1461,11 +1461,9 @@ Dart DevTools, or Flutter animations, see the following:
 * [Implicit animations][] codelab
 * [Web samples][]
 
-
 [Android Studio and IntelliJ]: {{site.url}}/tools/devtools/android-studio
 [Animation docs]: {{site.url}}/ui/animations
 [Building a form with validation]: {{site.url}}/cookbook/forms/validation
-[Building a web application with Flutter]: {{site.url}}/platform-integration/web/building
 [Chrome browser]: https://www.google.com/chrome/?brand=CHBD&gclid=CjwKCAiAws7uBRAkEiwAMlbZjlVMZCxJDGAHjoSpoI_3z_HczSbgbMka5c9Z521R89cDoBM3zAluJRoCdCEQAvD_BwE&gclsrc=aw.ds
 [create a new Flutter project]: {{site.url}}/get-started/test-drive
 [Dart DevTools]: {{site.url}}/tools/devtools/overview
@@ -1484,6 +1482,6 @@ Dart DevTools, or Flutter animations, see the following:
 [Material Design]: {{site.material}}/get-started
 [TextButton]: {{site.api}}/flutter/material/TextButton-class.html
 [VS Code]: {{site.url}}/tools/devtools/vscode
-[Web samples]: {{site.github}}/flutter/samples/tree/main/web
+[Web samples]: {{site.repo.samples}}/tree/main/web
 [Widget]: {{site.api}}/flutter/widgets/Widget-class.html
 [first_flutter_codelab]: {{site.url}}/get-started/codelab
diff --git a/src/get-started/codelab.md b/src/get-started/codelab.md
index a8fd4b9802..a521b508eb 100644
--- a/src/get-started/codelab.md
+++ b/src/get-started/codelab.md
@@ -18,6 +18,8 @@ next:
 toc: false
 ---
 
+{% include docs/yt_shims.liquid %}
+
 You are now ready to start the "First Flutter app" codelab.
 In about an hour and a half,
 you will learn the basics of Flutter
@@ -49,8 +51,7 @@ that works on mobile, desktop, and web.
 
 [codelab-web]: {{site.url}}/get-started/codelab-web
 
-
 If you prefer an instructor-led version of this codelab,
 check out the following workshop:
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/8sAyPDLorek" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/8sAyPDLorek" title="Learn how to build your first Flutter app" {{yt-set}}></iframe>
diff --git a/src/get-started/editor.md b/src/get-started/editor.md
index f53d663f0d..1943cdc16d 100644
--- a/src/get-started/editor.md
+++ b/src/get-started/editor.md
@@ -124,7 +124,7 @@ follow Microsoft's instructions for the relevant platform:
 1. Go to **View** <span aria-label="and then">></span>
    **Command Palette...**.
 
-   打开 **View** <span aria-label="and then">></span> **Command Palette...**。
+   打开 **查看 (View)** <span aria-label="and then">></span> **命令面板 (Command Palette...)**。
 
    You can also press <kbd>Ctrl</kbd> / <kbd>Cmd</kbd> +
    <kbd>Shift</kbd> + <kbd>P</kbd>.
@@ -137,25 +137,26 @@ follow Microsoft's instructions for the relevant platform:
    输入 `doctor`。
 
 1. Select the **Flutter: Run Flutter Doctor**.
-   Flutter Doctor runs and its response displays in the **Output** panel.
 
    选择 **Flutter: Run Flutter Doctor**。
-   输出结果会显示在 **Output** 面板中。
+   输出结果会显示在 **输出 (Output)** 面板中。
 
-1. Go to **View** <span aria-label="and then">></span> **Output**.
+   Once you select this command, VS Code does the following.
 
-   打开 **View** <span aria-label="and then">></span> **Output**。
+   选择该指令后，VS Code 会执行以下操作。
 
-   You can also press <kbd>Ctrl</kbd> / <kbd>Cmd</kbd> +
-   <kbd>Shift</kbd> + <kbd>U</kbd>.
+   - Opens the **Output** panel.
 
-   你也可以按下 <kbd>Ctrl</kbd> / <kbd>Cmd</kbd> +
-   <kbd>Shift</kbd> + <kbd>U</kbd>。
+     打开 **输出 (Output)** 面板。
+
+   - Displays **flutter (flutter)** in the dropdown on the upper right
+     of this panel.
+
+     在此面板右上方的下拉菜单中选择 **flutter (flutter)**。
 
-1. In the dropdown on the upper right of the **Output** panel,
-   select **flutter (flutter)**.
+   - Displays the output of Flutter Doctor command.
 
-   在 **Output** 面板右上角的下拉菜单中选择 **flutter (flutter)**。
+     显示 Flutter Doctor 指令的输出内容。
 
 </div>
 <div class="tab-pane" id="androidstudio" role="tabpanel" aria-labelledby="androidstudio-tab" markdown="1">
diff --git a/src/get-started/flutter-for/dart-swift-concurrency.md b/src/get-started/flutter-for/dart-swift-concurrency.md
index cbca4dc2e2..337c355362 100644
--- a/src/get-started/flutter-for/dart-swift-concurrency.md
+++ b/src/get-started/flutter-for/dart-swift-concurrency.md
@@ -245,7 +245,7 @@ class HomePage extends StatelessWidget {
 For the complete example, check out the
 [async_weather][] file on GitHub.
 
-[async_weather]: {{site.github}}/flutter/website/examples/resources/lib/async_weather.dart
+[async_weather]: {{site.repo.this}}/examples/resources/lib/async_weather.dart
 
 ### Leveraging a background thread/isolate
 
diff --git a/src/get-started/flutter-for/swiftui-devs.md b/src/get-started/flutter-for/swiftui-devs.md
index 65eaba01a9..76a56799a6 100644
--- a/src/get-started/flutter-for/swiftui-devs.md
+++ b/src/get-started/flutter-for/swiftui-devs.md
@@ -3,6 +3,8 @@ title: Flutter for SwiftUI Developers
 description: Learn how to apply SwiftUI developer knowledge when building Flutter apps.
 ---
 
+{% include docs/yt_shims.liquid %}
+
 <?code-excerpt path-base="get-started/flutter-for/ios_devs"?>
 
 {% assign sample_path = "blob/main/examples/get-started/flutter-for/ios_devs" %}
@@ -34,7 +36,7 @@ to app behavior when running on iOS and macOS.
 To learn how, see [Platform adaptations][].
 
 {{site.alert.info}}
-  To integrate Flutter code into an **existing** iOS app, 
+  To integrate Flutter code into an **existing** iOS app,
   check out [Add Flutter to existing app][].
 {{site.alert.end}}
 
@@ -48,7 +50,7 @@ You can test full working examples on DartPad or view them on GitHub.
 As an introduction, watch the following video.
 It outlines how Flutter works on iOS and how to use Flutter to build iOS apps.
 
-<iframe class="full-width" src="{{site.youtube-site}}/embed/ceMsPBbcEGg" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe class="full-width" src="{{yt-embed}}/ceMsPBbcEGg" title="Learn how to develop with Flutter as an iOS developer" {{yt-set}}></iframe>
 
 Flutter and SwiftUI code describes how the UI looks and works.
 Developers call this type of code a _declarative framework_.
@@ -72,6 +74,7 @@ By contrast, Flutter uses widgets for both UI components and
 their properties.
 
 {:.include-lang}
+
 ```dart
 Padding(                         // <-- This is a Widget
   padding: EdgeInsets.all(10.0), // <-- So is this
@@ -97,7 +100,8 @@ SwiftUI nests Views while Flutter nests Widgets.
 
 1. The parent widget passes constraints down to its children.
    Constraints include minimum and maximum values for height and width.
-1. The child tries to decide its size. It repeats the same process with its own list of children:
+1. The child tries to decide its size. It repeats the same process with its own
+   list of children:
     - It informs its child of the child's constraints.
     - It asks its child what size it wishes to be.
 
@@ -126,6 +130,7 @@ However, in Flutter parent widgets can offer unbounded constraints.
 Unbounded constraints set their maximum values to infinity.
 
 {:.include-lang}
+
 ```dart
 UnboundedBox(
   child: Container(
@@ -137,6 +142,7 @@ If the child expands and it has unbounded constraints,
 Flutter returns an overflow warning:
 
 {:.include-lang}
+
 ```dart
 UnconstrainedBox(
   child: Container(color: red, width: 4000, height: 50),
@@ -160,7 +166,7 @@ your Flutter app can use many different design systems:
 - Your own custom widgets
 - [Cupertino widgets][] that follow Apple's Human Interface Guidelines
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/3PdUaidHc-E?rel=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/3PdUaidHc-E?rel=0" title="Learn about the Cupertino Flutter Package" {{yt-set}}></iframe>
 
 If you're looking for a great reference app that features a
 custom design system, check out [Wonderous][].
@@ -296,6 +302,7 @@ the [Widget catalog][].
 In **SwiftUI**, you use the `Button` struct to create a button.
 
 {:.include-lang}
+
 ```swift
 Button("Do something") {
   // this closure gets called when your
@@ -344,6 +351,7 @@ The following SwiftUI view adds a globe image and
 text to a horizontal stack view:
 
 {:.include-lang}
+
 ```swift
 HStack {
   Image(systemName: "globe")
@@ -389,6 +397,7 @@ In **SwiftUI**, you use `VStack` to arrange the components into a
 vertical pillar.
 
 {:.include-lang}
+
 ```swift
 VStack {
   Image(systemName: "globe")
@@ -430,6 +439,7 @@ identify your model objects.
 To make an object identifiable, use the `Identifiable` protocol.
 
 {:.include-lang}
+
 ```swift
 struct Person: Identifiable {
   var name: String
@@ -522,6 +532,7 @@ When constructing non-conditional grids in **SwiftUI**,
 you use `Grid` with `GridRow`.
 
 {:.include-lang}
+
 ```swift
 Grid {
   GridRow {
@@ -600,6 +611,7 @@ The following example displays a series of `PersonView` instances
 in a scrollable fashion.
 
 {:.include-lang}
+
 ```swift
 ScrollView {
   VStack(alignment: .leading) {
@@ -645,15 +657,17 @@ of the `Person` class to create the custom `PersonView` widget.
 In **SwiftUI**, you use `GeometryReader` to create relative view sizes.
 
 For example, you could:
-* Multiply `geometry.size.width` by some factor to set the _width_.
-* Use `GeometryReader` as a breakpoint to change the design of your app.
+
+- Multiply `geometry.size.width` by some factor to set the _width_.
+- Use `GeometryReader` as a breakpoint to change the design of your app.
 
 You can also see if the size class has `.regular` or `.compact`
 using `horizontalSizeClass`.
 
 To create relative views in **Flutter**, you can use one of two options:
-* Get the `BoxConstraints` object in the [`LayoutBuilder`][] class.
-* Use the [`MediaQuery.of()`][] in your build functions
+
+- Get the `BoxConstraints` object in the [`LayoutBuilder`][] class.
+- Use the [`MediaQuery.of()`][] in your build functions
   to get the size and orientation of your current app.
 
 To learn more, check out [Creating responsive and adaptive apps][].
@@ -664,6 +678,7 @@ In **SwiftUI**, you use the `@State` property wrapper to represent the
 internal state of a SwiftUI view.
 
 {:.include-lang}
+
 ```swift
 struct ContentView: View {
   @State private var counter = 0;
@@ -680,6 +695,7 @@ management such as the `ObservableObject` protocol.
 
 **Flutter** manages local state using a [`StatefulWidget`][].
 Implement a stateful widget with the following two classes:
+
 - a subclass of `StatefulWidget`
 - a subclass of `State`
 
@@ -738,6 +754,7 @@ To learn more ways to manage state, check out [State management][].
 ### Animations
 
 Two main types of UI animations exist.
+
 - Implicit that animated from a current value to a new target.
 - Explicit that animates when asked.
 
@@ -750,6 +767,7 @@ In **SwiftUI**, you use the `animate()` modifier to handle implicit
 animation.
 
 {:.include-lang}
+
 ```swift
 Button("Tap me!"){
    angle += 45
@@ -893,6 +911,7 @@ To display a person's details in a new navigation link,
 tap on that person.
 
 {:.include-lang}
+
 ```swift
 NavigationStack(path: $path) {
       List {
@@ -1044,6 +1063,7 @@ In **SwiftUI**, you use the `dismiss` environment value to pop-back to
 the previous screen.
 
 {:.include-lang}
+
 ```swift
 Button("Pop back") {
         dismiss()
@@ -1081,6 +1101,7 @@ In **SwiftUI**, you use the `openURL` environment variable to open a
 URL to another application.
 
 {:.include-lang}
+
 ```swift
 @Environment(\.openURL) private var openUrl
 
@@ -1163,6 +1184,7 @@ For example, to change the font of a `Text` string,
 use the `font()` modifier:
 
 {:.include-lang}
+
 ```swift
 Text("Hello, world!")
   .font(.system(size: 30, weight: .heavy))
@@ -1200,6 +1222,7 @@ of the `style` parameter of the `Text` widget.
 In **SwiftUI**, you use modifier functions to style buttons.
 
 {:.include-lang}
+
 ```swift
 Button("Do something") {
     // do something when button is tapped
@@ -1214,6 +1237,7 @@ To style button widgets in **Flutter**, set the style of its child,
 or modify properties on the button itself.
 
 In the following example:
+
 - The `color` property of `CupertinoButton` sets its `color`.
 - The `color` property of the child `Text` widget sets the button
   text color.
@@ -1253,6 +1277,7 @@ First, add the font file to your SwiftUI project. After adding the file,
 use the `.font()` modifier to apply it to your UI components.
 
 {:.include-lang}
+
 ```swift
 Text("Hello")
   .font(
@@ -1316,6 +1341,7 @@ then use the `Image` view to display the images.
 
 To add images in **Flutter**, follow a method similar to how you added
 custom fonts.
+
 1. Add an `images` folder to the root directory.
 1. Add this asset to the `pubspec.yaml` file.
 
@@ -1327,6 +1353,7 @@ custom fonts.
 
 After adding your image, display it using the `Image` widget's
 `.asset()` constructor. This constructor:
+
 1. Instantiates the given image using the provided path.
 1. Reads the image from the assets bundled with your app.
 1. Displays the image on the screen.
diff --git a/src/get-started/flutter-for/uikit-devs.md b/src/get-started/flutter-for/uikit-devs.md
index da4361591c..c0f3bc03a7 100644
--- a/src/get-started/flutter-for/uikit-devs.md
+++ b/src/get-started/flutter-for/uikit-devs.md
@@ -7,6 +7,8 @@ tags: Flutter教程,Flutter起步,Flutter入门
 keywords: Flutter iOS,iOS,用Flutter开发iOS,Cupertino
 ---
 
+{% include docs/yt_shims.liquid %}
+
 <?code-excerpt path-base="get-started/flutter-for/ios_devs"?>
 
 iOS developers with experience using UIKit
@@ -37,7 +39,7 @@ to app behavior when running on iOS.
 To learn how, see [Platform adaptations][].
 
 {{site.alert.info}}
-  To integrate Flutter code into an **existing** iOS app, 
+  To integrate Flutter code into an **existing** iOS app,
   check out [Add Flutter to existing app][].
 {{site.alert.end}}
 
@@ -49,7 +51,7 @@ Jump around and find questions that address your most relevant needs.
 As an introduction, watch the following video.
 It outlines how Flutter works on iOS and how to use Flutter to build iOS apps.
 
-<iframe class="full-width" src="{{site.youtube-site}}/embed/ceMsPBbcEGg" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe class="full-width" src="{{yt-embed}}/ceMsPBbcEGg" title="Learn how to develop with Flutter as an iOS developer" {{yt-set}}></iframe>
 
 ### Views vs. Widgets
 
@@ -2033,7 +2035,7 @@ implement yourself, making it simple to make network calls.
 To add the `http` package as a dependency, run `flutter pub add`:
 
 ```terminal
-$ flutter pub add http
+flutter pub add http
 ```
 
 To make a network call,
diff --git a/src/get-started/install/_android-setup.md b/src/get-started/install/_android-setup.md
index f99e7b6432..07a945a155 100644
--- a/src/get-started/install/_android-setup.md
+++ b/src/get-started/install/_android-setup.md
@@ -109,7 +109,7 @@ follow these steps:
     激活机器上的 
     [VM acceleration]({{site.android-dev}}/studio/run/emulator-acceleration) 选项。
  
- 1. Launch **Android Studio**, click the **Device Manager**
+ 1. Start **Android Studio**, click the **Device Manager**
     icon, and select **Create Device** under **Virtual** tab...
 
     打开 **Android Studio**，点击 **Device Manager** 按钮，
diff --git a/src/get-started/install/_chrome-setup-chromeos.md b/src/get-started/install/_chrome-setup-chromeos.md
index 0e52bff201..a50334514f 100644
--- a/src/get-started/install/_chrome-setup-chromeos.md
+++ b/src/get-started/install/_chrome-setup-chromeos.md
@@ -11,7 +11,7 @@ and Flutter doesn't have a means to call it with the required parameters.
 然而，Chrome 浏览器本身是 ChromeOS 操作系统的一部分，
 Flutter 无法使用必要的参数来调用它。
 
-Track this issue at [Issue 121462: Improve the web debugging experience on Chromebooks]({{site.github}}/flutter/flutter/issues/121462).
+Track this issue at [Issue 121462: Improve the web debugging experience on Chromebooks]({{site.repo.flutter}}/issues/121462).
 
 追踪此问题：[Issue 121462: Improve the web debugging experience on Chromebooks]({{site.github}}/flutter/flutter/issues/121462).
 
diff --git a/src/get-started/install/_get-sdk-win.md b/src/get-started/install/_get-sdk-win.md
index fb513d09a8..a5e49d1987 100644
--- a/src/get-started/install/_get-sdk-win.md
+++ b/src/get-started/install/_get-sdk-win.md
@@ -4,7 +4,7 @@
 
 {% include docs/china-notice.md %}
 
-{% include_relative _help-link.md location='win-get-sdk' %}
+{% include_relative_help-link.md location='win-get-sdk' %}
 
  1. Download the following installation bundle to get the latest
     {{site.sdk.channel}} release of the Flutter SDK:
@@ -21,7 +21,7 @@
 
  1. Extract the zip file and place the contained `flutter`
     in the desired installation location for the Flutter SDK
-    (for example, `%USERPROFILE%\flutter`, `D:\dev\flutter`).
+    (for example, `%USERPROFILE%\flutter`, `C:\dev\flutter`).
 
     将压缩包解压，然后把其中的 `flutter` 目录整个放在
     你想放置 Flutter SDK 的路径中（例如 `%USERPROFILE%\flutter` 或者 `D:\dev\flutter`）。
@@ -37,10 +37,11 @@
 
 {{site.alert.warning}}
 
-  Do not install Flutter in a directory like `C:\Program Files\` that requires
-  elevated privileges.
+  Do not install Flutter in a directory like
+  `C:\Program Files\` that requires elevated privileges.
 
-  请勿将 Flutter 安装在需要高权限的文件夹内，例如 `C:\Program Files\`。
+  请勿将 Flutter 安装在需要高权限的文件夹内，
+  例如 `C:\Program Files\`。
 
 {{site.alert.end}}
 
@@ -48,13 +49,11 @@ You are now ready to run Flutter commands in the Flutter Console.
 
 现在你可以在控制台当中使用 Flutter 的命令了。
 
-[Flutter repo]: {{site.repo.flutter}}
-
 ### Update your path
 
 ### 更新 path 环境变量
 
-{% include_relative _help-link.md location='win-path' section='#unable-to-find-the-flutter-command' %}
+{% include_relative_help-link.md location='win-path' section='#unable-to-find-the-flutter-command' %}
 
 If you wish to run Flutter commands in the regular Windows console,
 take these steps to add Flutter to the `PATH` environment variable:
@@ -95,7 +94,7 @@ for these changes to take effect.
 
 ### 运行 `flutter doctor`
 
-{% include_relative _help-link.md location='win-doctor' %}
+{% include_relative_help-link.md location='win-doctor' %}
 
 From a console window that has the Flutter directory in the
 path (see above), run the following command to see if there
@@ -123,7 +122,7 @@ For example:
 
 <pre>
 [-] Android toolchain - develop for Android devices
-    • Android SDK at D:\Android\sdk
+    • Android SDK at C:\Android\sdk
     <strong>✗ Android SDK is missing command line tools; download from https://goo.gl/XxQghQ</strong>
     • Try re-installing or updating your Android SDK,
       visit {{site.url}}/setup/#android-setup for detailed instructions.
@@ -150,9 +149,7 @@ verify that you've set everything up correctly.
 
 {{site.alert.end}}
 
-{% include_relative _analytics.md %}
-
+{% include_relative_analytics.md %}
 
-[Flutter repo]: {{site.repo.flutter}}
 [SDK archive]: {{site.url}}/release/archive
 [Set up an editor]: {{site.url}}/get-started/editor?tab=androidstudio
diff --git a/src/get-started/install/_ios-setup.md b/src/get-started/install/_ios-setup.md
index c3798fb8df..086ad765b2 100644
--- a/src/get-started/install/_ios-setup.md
+++ b/src/get-started/install/_ios-setup.md
@@ -23,8 +23,8 @@ To develop Flutter apps for iOS, you need a Mac with Xcode installed.
     从命令行中运行以下命令：
 
     ```terminal
-    $ sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
-    $ sudo xcodebuild -runFirstLaunch
+    sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
+    sudo xcodebuild -runFirstLaunch
     ```
 
     To use the latest version of Xcode, use this path.
@@ -48,7 +48,7 @@ To develop Flutter apps for iOS, you need a Mac with Xcode installed.
        在终端输入命令并运行：
 
        ```terminal
-       $ sudo xcodebuild -license
+       sudo xcodebuild -license
        ```
 
 Versions older than the latest stable version might still work,
@@ -70,18 +70,18 @@ follow this procedure.
 
 如果想要在 iOS 模拟器中运行和测试 Flutter 应用，按照以下步骤即可：
 
- 1. If using Xcode 15 or greater, download and install the iOS Simulator 
+ 1. If using Xcode 15 or greater, download and install the iOS Simulator
     by running the following command:
 
     如果使用 Xcode 15 或更高的版本，
     请运行以下指令下载并安装 iOS 模拟器：
 
     ```terminal
-    $ xcodebuild -downloadPlatform iOS
+    xcodebuild -downloadPlatform iOS
     ```
 
-    If you want to use a different method of downloading and installing the 
-    iOS Simulator, check out 
+    If you want to use a different method of downloading and installing the
+    iOS Simulator, check out
     [Apple's documentation on installing Simulators][] for more options.
 
     如果你想使用其他方式下载和安装 iOS 模拟器，请查阅 
@@ -93,7 +93,7 @@ follow this procedure.
     运行以下指令启动模拟器：
 
     ```terminal
-    $ open -a Simulator
+    open -a Simulator
     ```
 
  1. Set your Simulator to use a 64-bit device (iPhone 5s or later).
@@ -667,7 +667,6 @@ flutter run --device-timeout 60
   要了解如何使用 `flutter attach` 配置无线调试，
   请查阅 [在混合开发模式下进行调试][Debugging your add-to-app module]。
 
-
 ##### Install CocoaPods
 
 ##### 安装 CocoaPods
@@ -683,7 +682,7 @@ To [Install and set up CocoaPods][], run the following commands:
 请运行以下指令，[安装并设置 CocoaPods][Install and set up CocoaPods]：
 
 ```terminal
-$ sudo gem install cocoapods
+sudo gem install cocoapods
 ```
 
 {{site.alert.note}}
@@ -700,7 +699,7 @@ $ sudo gem install cocoapods
   除此之外，如果你是在 Apple 芯片的 Mac 上安装，则需要运行下面的命令：
 
   ```terminal
-  $ sudo gem uninstall ffi && sudo gem install ffi -- --enable-libffi-alloc
+  sudo gem uninstall ffi && sudo gem install ffi -- --enable-libffi-alloc
   ```
 
 {{site.alert.end}}
diff --git a/src/get-started/install/help.md b/src/get-started/install/help.md
index d0e586625c..28f34d6474 100644
--- a/src/get-started/install/help.md
+++ b/src/get-started/install/help.md
@@ -182,19 +182,20 @@ consider asking for support from one of the following channels:
 * [/r/flutterhelp](https://www.reddit.com/r/flutterhelp/) on Reddit
 * [/r/flutterdev](https://discord.gg/rflutterdev) on Discord,
   particularly the `install-and-setup` channel on this server. 
-* [StackOverflow](https://stackoverflow.com/), 
+* [StackOverflow][], 
   in particular, questions tagged with [#flutter][] or [#dart][].
 
 To be respectful of everyone's time,
 search the archive for a similar issue before posting a new one. 
 
-[#dart]:  https://stackoverflow.com/questions/tagged/dart
-[#flutter]:  https://stackoverflow.com/questions/tagged/flutter
+[StackOverflow]: {{site.so}}
+[#dart]: {{site.so}}/questions/tagged/dart
+[#flutter]: {{site.so}}/questions/tagged/flutter
 [Android Java Gradle migration guide]: {{site.url}}/release/breaking-changes/android-java-gradle-migration-guide
 [community support channels]: #community-support
-[java binary path]: {{site.github}}/flutter/flutter/issues/106416#issuecomment-1522198064
-[so java version]: https://stackoverflow.com/questions/75328050/
-[set up VS Code]: https://docs.flutter.dev/get-started/editor
+[java binary path]: {{site.repo.flutter}}/issues/106416#issuecomment-1522198064
+[so java version]: {{site.so}}/questions/75328050/
+[set up VS Code]: {{site.url}}/get-started/editor
 [config path]: https://dartcode.org/docs/configuring-path-and-environment-variables/
-[sdkmanager]: https://developer.android.com/studio/command-line/sdkmanager
+[sdkmanager]: {{site.android-dev}}/studio/command-line/sdkmanager
 [windows path]: https://www.wikihow.com/Change-the-PATH-Environment-Variable-on-Windows
diff --git a/src/get-started/install/index.md b/src/get-started/install/index.md
index 9a1c132967..a8bdb05a40 100644
--- a/src/get-started/install/index.md
+++ b/src/get-started/install/index.md
@@ -1,6 +1,8 @@
 ---
-title: Install
-title: 安装和环境配置
+title: Choose your development platform to get started
+title: 选择你的开发平台，开始使用
+short-title: Install
+short-title: 安装和环境配置
 description: Install Flutter and get started. Downloads available for Windows, macOS, Linux, and ChromeOS operating systems.
 description: Flutter安装和上手起步教程, 下载 Windows、macOS、Linux 和 ChromeOS 系统的 Flutter SDK。
 tags: Flutter安装,Flutter环境搭建
@@ -12,7 +14,8 @@ next:
 os-list: [Windows, macOS, Linux, ChromeOS]
 ---
 
-Select the operating system on which you are installing Flutter:
+<!-- ## Choose your development platform to get started
+{:.no_toc} -->
 
 你想把 Flutter 安装在哪个操作系统呢？
 
diff --git a/src/get-started/install/macos.md b/src/get-started/install/macos.md
deleted file mode 100644
index 3970644b51..0000000000
--- a/src/get-started/install/macos.md
+++ /dev/null
@@ -1,91 +0,0 @@
----
-title: macOS install
-title: 在 macOS 上安装和配置 Flutter 开发环境
-description: How to install on macOS.
-description: 如何在 macOS 上安装 Flutter。
-short-title: macOS
-tags: Flutter安装,Flutter环境搭建
-keywords: Flutter macOS,Flutter镜像,macOS开发Flutter,macOS开发环境配置
-next:
-  title: Set up an editor
-  title: 编辑工具设定
-  path: /docs/get-started/editor
----
-
-{% assign os = 'macos' -%}
-
-## System requirements
-
-## 系统配置要求
-
-To install and run Flutter,
-your development environment must meet these minimum requirements:
-
-想要安装并运行 Flutter，你的开发环境需要最低满足以下要求：
-
-- **Operating Systems**: macOS, version 10.14 (Mojave) or later.
-
-  **操作系统**：macOS，需要 10.14 (Mojave) 以及以上版本的操作系统
-
-- **Disk Space**: 2.8 GB (does not include disk space for IDE/tools).
-
-  **磁盘空间**：2.8 GB（不包含 IDE 或其余工具所需要的磁盘空间） 
-
-- **Tools**: Flutter uses `git` for installation and upgrade. We recommend
-  installing [Xcode][], which includes `git`, but you can also 
-  [install `git` separately][]. 
-
-  **工具**：Flutter 使用 `git` 进行安装和升级，我们建议您安装包含了 `git` 的 Xcode，
-  或者您也可以 [单独安装 `git`][install `git` separately]。
-
-{{site.alert.important}}
-
-  If you're installing on an [Apple Silicon Mac][], you must have the Rosetta
-  translation environment available for [some ancillary tools]. 
-  You can install this manually by running:
-
-  如果你要在 [Apple 芯片的 Mac 电脑][] 上使用，你还需要安装
-  Rosetta 2 环境因为 [一些辅助工具][some ancillary tools] 仍然需要，
-  你可以通过手动运行下面的命令来安装：
-
-  ```terminal
-$ sudo softwareupdate --install-rosetta --agree-to-license
-  ```
-
-{{site.alert.end}}
-
-{% include_relative _get-sdk-mac.md %}
-
-{% include_relative _path-mac.md %}
-
-## Platform setup
-
-## 平台配置
-
-macOS supports developing Flutter apps for iOS, Android, macOS itself 
-and the web. Complete at least one of the platform setup steps now,
-to be able to build and run your first Flutter app.
-
-macOS 系统可以开发支持 iOS、Android、macOS 桌面以及 Web 的 Flutter 应用，
-你可以任选一个平台完成初始配置，以此来搭建并运行你的第一个 Flutter 应用。
-
-{% include_relative _ios-setup.md %}
-
-{% include_relative _android-setup.md %}
-
-{% include_relative _macos-desktop-setup.md %}
-
-## Next step
-
-## 下一步
-
-Set up your preferred editor.
-
-编辑器设置。
-
-[Apple Silicon Mac]: https://support.apple.com/en-us/HT211814
-[Apple 芯片的 Mac 电脑]: https://support.apple.com/zh-cn/HT211814
-[some ancillary tools]: https://github.com/flutter/website/pull/7119#issuecomment-1124537969
-[these supplementary notes]: {{site.repo.flutter}}/wiki/Developing-with-Flutter-on-Apple-Silicon
-[Xcode]: {{site.apple-dev}}/xcode/
-[install `git` separately]: https://git-scm.com/download/mac
\ No newline at end of file
diff --git a/src/get-started/install/macos/desktop.md b/src/get-started/install/macos/desktop.md
new file mode 100644
index 0000000000..c1c6940886
--- /dev/null
+++ b/src/get-started/install/macos/desktop.md
@@ -0,0 +1,17 @@
+---
+title: Start building Flutter native desktop apps on macOS
+description: Configure your system to develop Flutter desktop apps on macOS.
+short-title: macOS desktop development
+platform: desktop
+next:
+  title: Create a test app
+  path: /get-started/test-drive
+---
+
+{% include docs/install/reqs/macos/base.md target='desktop' os='macOS' -%}
+
+{% include docs/install/flutter-sdk.md target='desktop' os='macOS' terminal='Terminal' -%}
+
+{% include docs/install/compiler/xcode.md target='desktop' os='macOS' -%}
+
+{% include docs/install/flutter-doctor.md target='desktop' os='macOS' platform='desktop' compiler='Xcode' -%}
diff --git a/src/get-started/install/macos/index.md b/src/get-started/install/macos/index.md
new file mode 100644
index 0000000000..5f444cfaa8
--- /dev/null
+++ b/src/get-started/install/macos/index.md
@@ -0,0 +1,48 @@
+---
+title: Choose your first type of app
+description: Configure your system to develop Flutter on macOS.
+short-title: macOS
+target-list: [Desktop, Mobile-iOS, Mobile-Android, Web]
+---
+
+{% assign os = 'macos' -%}
+
+<div class="card-deck mb-8">
+{% for target in page.target-list %}
+  <a class="card" id="install-{{os | remove: ' ' | downcase}}" href="{{site.url}}/get-started/install/{{os | remove: ' ' | downcase}}/{{target | downcase}}">
+    <div class="card-body">
+      <header class="card-title text-center m-0">
+        <span class="d-block h1">
+          {% assign icon = target | downcase -%}
+          {% if icon == 'desktop' -%}
+            <span class="material-icons">laptop_mac</span>
+          {% elsif icon == 'mobile-ios' -%}
+            <span class="material-icons">phone_iphone</span>
+          {% elsif icon == 'mobile-android' -%}
+            <span class="material-icons">phone_android</span>
+          {% else -%}
+            <span class="material-icons">open_in_browser</span>
+          {% endif -%}
+        </span>
+        <span class="text-muted text-nowrap">
+        {% if target == "Desktop" or target == "Web" %}
+        {% assign target = "-" | append: target %}
+        {% endif -%}
+        {% assign mac_target = target | split: "-" | last %}
+        {{ mac_target }}
+        </span>
+        {% if icon == 'mobile' -%}
+           <br>Recommended
+        {% endif -%}
+      </header>
+    </div>
+  </a>
+{% endfor %}
+</div>
+
+Your choice informs which parts of Flutter tooling you configure
+to run your first Flutter app.
+You can set up additional platforms later.
+If you don’t have a preference, choose mobile.
+
+{% include docs/china-notice.md %}
diff --git a/src/get-started/install/macos/mobile-android.md b/src/get-started/install/macos/mobile-android.md
new file mode 100644
index 0000000000..adec56324a
--- /dev/null
+++ b/src/get-started/install/macos/mobile-android.md
@@ -0,0 +1,16 @@
+---
+title: Start building Flutter Android apps on macOS
+description: Configure your system to develop Flutter mobile apps on macOS and Android.
+short-title: macOS Android development
+next:
+  title: Create a test app
+  path: /get-started/test-drive
+---
+
+{% include docs/install/reqs/macos/base.md target='mobile-android' os='macOS' -%}
+
+{% include docs/install/flutter-sdk.md target='mobile-android' os='macOS' terminal='Terminal' -%}
+
+{% include docs/install/compiler/android.md target='mobile-android' os='macOS' -%}
+
+{% include docs/install/flutter-doctor.md target='mobile-android' os='macOS' compiler='Android Studio' -%}
diff --git a/src/get-started/install/macos/mobile-ios.md b/src/get-started/install/macos/mobile-ios.md
new file mode 100644
index 0000000000..7e6c5aed8a
--- /dev/null
+++ b/src/get-started/install/macos/mobile-ios.md
@@ -0,0 +1,16 @@
+---
+title: Start building Flutter iOS apps on macOS
+description: Configure your system to develop Flutter mobile apps on macOS and iOS.
+short-title: macOS iOS development
+next:
+  title: Create a test app
+  path: /get-started/test-drive
+---
+
+{% include docs/install/reqs/macos/base.md target='mobile-ios' os='macOS' -%}
+
+{% include docs/install/flutter-sdk.md target='mobile-ios' os='macOS' terminal='Terminal' -%}
+
+{% include docs/install/compiler/xcode.md target='mobile-ios' os='macOS' -%}
+
+{% include docs/install/flutter-doctor.md target='mobile-ios' os='macOS' compiler='Xcode' -%}
diff --git a/src/get-started/install/macos/web.md b/src/get-started/install/macos/web.md
new file mode 100644
index 0000000000..3a5cf32956
--- /dev/null
+++ b/src/get-started/install/macos/web.md
@@ -0,0 +1,14 @@
+---
+title: Start building Flutter web apps on macOS
+description: Configure your system to develop Flutter web apps on macOS.
+short-title: macOS Web development
+next:
+  title: Create a test app
+  path: /get-started/test-drive
+---
+
+{% include docs/install/reqs/macos/base.md target='web' os='macOS' -%}
+
+{% include docs/install/flutter-sdk.md target='web' os='macOS' terminal='Terminal' -%}
+
+{% include docs/install/flutter-doctor.md target='web' os='macOS' -%}
diff --git a/src/get-started/install/windows.md b/src/get-started/install/windows.md
deleted file mode 100644
index 9dc8128817..0000000000
--- a/src/get-started/install/windows.md
+++ /dev/null
@@ -1,70 +0,0 @@
----
-title: Windows install
-title: 在 Windows 操作系统上安装和配置 Flutter 开发环境
-description: How to install on Windows.
-description: 如何在 Windows 上安装 Flutter。
-short-title: Windows
-tags: Flutter安装,Flutter环境搭建
-keywords: Flutter Windows,Flutter镜像,Windows开发Flutter,Windows开发环境配置
-next:
-  title: Set up an editor
-  title: 编辑工具设定
-  path: /docs/get-started/editor
----
-
-{% assign os = 'windows' -%}
-
-## System requirements
-
-## 系统配置要求
-
-To install and run Flutter,
-your development environment must meet these minimum requirements:
-
-为了安装和运行 Flutter，
-你的开发环境必须至少满足以下要求：
-
-- **Operating Systems**: Windows 10 or later (64-bit), x86-64 based.
-
-  **操作系统**：Windows 10 或更高的版本（基于 x86-64 的 64 位操作系统）。
-
-- **Disk Space**: 2.5 GB (does not include disk space for IDE/tools).
-
-  **磁盘空间**：除安装 IDE 和一些工具之外还应有至少 2.5 GB 的空间。
-
-- **Tools**: Flutter depends on these tools being available in your environment.
-
-  **工具**：要让 Flutter 在你的开发环境中正常使用，依赖于以下的工具：
-
-  - [Windows PowerShell 5.0][] or newer (this is pre-installed with Windows 10)
-
-    [Windows PowerShell 5.0][] 或者更高的版本（Windows 10 中已预装）
-
-  - [Git for Windows][] 2.x, with the
-    **Use Git from the Windows Command Prompt** option.
-
-    [Git for Windows][] 2.x，并且勾选**从 Windows 命令提示符使用 Git** 选项。
-
-     If Git for Windows is already installed,
-     make sure you can run `git` commands from the
-     command prompt or PowerShell.
-
-     如果 Windows 版的 Git 已经安装过了，那么请确保能从命令提示符或者
-     PowerShell 中直接执行 git 命令。
-
-{% include_relative _get-sdk-win.md %}
-
-{% include_relative _android-setup.md %}
-
-{% include_relative _windows-desktop-setup.md %}
-
-## Next step
-
-## 下一步
-
-Set up your preferred editor.
-
-编辑工具设定。
-
-[Git for Windows]: https://git-scm.com/download/win
-[Windows PowerShell 5.0]: https://docs.microsoft.com/en-us/powershell/scripting/install/installing-windows-powershell
diff --git a/src/get-started/install/windows/desktop.md b/src/get-started/install/windows/desktop.md
new file mode 100644
index 0000000000..b5ff388ca1
--- /dev/null
+++ b/src/get-started/install/windows/desktop.md
@@ -0,0 +1,15 @@
+---
+title: Start building Flutter native desktop apps on Windows
+description: Configure your system to develop Flutter desktop apps on Windows.
+short-title: Windows Desktop app
+platform: desktop
+next:
+  title: Create a test app
+  path: /get-started/test-drive
+---
+
+{% include docs/install/reqs/windows/base.md target='desktop' os='Windows' -%}
+
+{% include docs/install/flutter-sdk.md target='desktop' os='Windows' terminal='PowerShell' -%}
+
+{% include docs/install/flutter-doctor.md target='desktop' os='Windows' platform='desktop' compiler='Visual Studio' -%}
diff --git a/src/get-started/install/windows/index.md b/src/get-started/install/windows/index.md
new file mode 100644
index 0000000000..83e7a7d051
--- /dev/null
+++ b/src/get-started/install/windows/index.md
@@ -0,0 +1,40 @@
+---
+title: Choose your first type of app
+description: Configure your system to develop Flutter on Windows.
+short-title: Windows
+target-list: [Desktop, Mobile, Web]
+---
+
+{% assign os = 'windows' -%}
+
+<div class="card-deck mb-8">
+{% for target in page.target-list %}
+  <a class="card" id="install-{{os | remove: ' ' | downcase}}" href="{{site.url}}/get-started/install/{{os | remove: ' ' | downcase}}/{{target | downcase}}">
+    <div class="card-body">
+      <header class="card-title text-center m-0">
+        <span class="d-block h1">
+          {% assign icon = target | downcase -%}
+          {% if icon == 'desktop' -%}
+            <span class="material-icons">desktop_windows</span>
+          {% elsif icon == 'mobile' -%}
+            <span class="material-icons">phone_android</span>
+          {% else -%}
+            <span class="material-icons">open_in_browser</span>
+          {% endif -%}
+        </span>
+        <span class="text-muted text-nowrap">{{target}}</span>
+        {% if icon == 'mobile' -%}
+           <br>Recommended
+        {% endif -%}
+      </header>
+    </div>
+  </a>
+{% endfor %}
+</div>
+
+Your choice informs which parts of Flutter tooling you configure
+to run your first Flutter app.
+You can set up additional platforms later.
+If you don’t have a preference, choose mobile.
+
+{% include docs/china-notice.md %}
diff --git a/src/get-started/install/windows/mobile.md b/src/get-started/install/windows/mobile.md
new file mode 100644
index 0000000000..60c80257f1
--- /dev/null
+++ b/src/get-started/install/windows/mobile.md
@@ -0,0 +1,16 @@
+---
+title: Start building Flutter Android apps on Windows
+description: Configure your system to develop Flutter mobile apps on Windows.
+short-title: Android app
+next:
+  title: Create a test app
+  path: /get-started/test-drive
+---
+
+{% include docs/install/reqs/windows/base.md target='mobile' os='Windows' -%}
+
+{% include docs/install/flutter-sdk.md target='mobile' os='Windows' terminal='PowerShell' -%}
+
+{% include docs/install/compiler/android.md target='mobile' os='Windows' -%}
+
+{% include docs/install/flutter-doctor.md target='mobile' os='Windows' compiler='Android Studio' -%}
diff --git a/src/get-started/install/windows/web.md b/src/get-started/install/windows/web.md
new file mode 100644
index 0000000000..0e5fc0154e
--- /dev/null
+++ b/src/get-started/install/windows/web.md
@@ -0,0 +1,14 @@
+---
+title: Start building Flutter web apps on Windows
+description: Configure your system to develop Flutter web apps on Windows.
+short-title: Web app
+next:
+  title: Create a test app
+  path: /get-started/test-drive
+---
+
+{% include docs/install/reqs/windows/base.md target='web' os='Windows' -%}
+
+{% include docs/install/flutter-sdk.md target='web' os='Windows' terminal='PowerShell' -%}
+
+{% include docs/install/flutter-doctor.md target='web' os='Windows' -%}
diff --git a/src/get-started/test-drive/_androidstudio.md b/src/get-started/test-drive/_androidstudio.md
deleted file mode 100644
index 0bdb916cb8..0000000000
--- a/src/get-started/test-drive/_androidstudio.md
+++ /dev/null
@@ -1,84 +0,0 @@
-<div class="tab-pane" id="androidstudio" role="tabpanel" aria-labelledby="androidstudio-tab" markdown="1">
-
-## Create the app {#create-app}
-
-## 创建应用 {#create-app}
-
-1. Open the IDE and select **New Flutter Project**.
-
-   打开 IDE 并选中 **New Flutter Project**。
-
-2. Select **Flutter**, verify the Flutter SDK path with the SDK's location.
-   Then click **Next**.
-
-   选择 **Flutter**，验证 Flutter SDK 的路径。完成后选择 **Next**。
-
-3. Enter a project name (for example, `my_app`).
-
-   输入项目名称（例如 `my_app`）。
-
-4. Select **Application** as the project type.
-   Then click **Next**.
-
-   选择 **Application** 的项目类型，
-   完成后选择 **Next**。
-
-5. Click **Finish**.
-
-   点击 **完成**。
-
-6. Wait for Android Studio to create the project.
-
-   等待 Android Studio 完成项目的创建。
-
-{% include_relative _package-name.md  %}
-
-The above commands create a Flutter project directory
-called `my_app` that contains a simple demo app that
-uses [Material Components][].
-
-上述步骤会创建名为 `my_app` 的 Flutter 项目的文件夹，
-它是一个使用了 [Material 组件][Material Components] 的简单 demo。
-
-{% include_relative _main-code-note.md  %}
-
-## Run the app
-
-## 运行应用
-
- 1. Locate the main Android Studio toolbar:<br>
-    ![Main IntelliJ toolbar][]{:.mw-100}
-
-    定位到 Android Studio 的工具栏：<br>
-    ![Main IntelliJ toolbar][]{:.mw-100}
-
- 1. In the **target selector**, select an Android device for running the app.
-    If none are listed as available,
-    select **Tools > AVD Manager** and create one there.
-    For details, see [Managing AVDs][].
-
-    在 **target selector** 中，选择一个用于运行应用的 Android 设备。
-    如果列表为空，选择 **Tools > AVD Manager** 创建一个虚拟机。
-    更多细节可以参考 [管理 AVD 虚拟机][Managing AVDs]。
-
- 1. Click the run icon in the toolbar, or invoke the menu item **Run > Run**.
-
-    点击工具栏中的运行按钮，或者点击菜单栏中的 **Run > Run**。
-
-{% capture save_changes -%}
-  : invoke **Save All**, or click **Hot Reload**
-  {% include_relative _hot-reload-icon.md %}.
-{% endcapture %}
-
-{% capture ide_profile -%}
-  to invoke the menu item **Run > Profile** in the IDE, or
-{% endcapture %}
-
-{% include_relative _try-hot-reload.md save_changes=save_changes %}
-{% include docs/run-profile.md ide_profile=ide_profile %}
-
-[Main IntelliJ toolbar]: {{site.url}}/assets/images/docs/tools/android-studio/main-toolbar.png
-[Managing AVDs]: {{site.android-dev}}/studio/run/managing-avds
-[Material Components]: {{site.material}}/components
-
-</div>
diff --git a/src/get-started/test-drive/_main-code-note.md b/src/get-started/test-drive/_main-code-note.md
deleted file mode 100644
index 80b54c9d7e..0000000000
--- a/src/get-started/test-drive/_main-code-note.md
+++ /dev/null
@@ -1,10 +0,0 @@
-{{site.alert.tip}}
-
-  The code for your app is in `lib/main.dart`.
-  For a high-level description of what each code block does,
-  see the comments at the top of that file.
-
-  应用程序的代码存放在 `lib/main.dart` 中。
-  想要查看每块代码具体的作用，请查看文件中的对应注释。
-
-{{site.alert.end}}
diff --git a/src/get-started/test-drive/_package-name.md b/src/get-started/test-drive/_package-name.md
deleted file mode 100644
index 106ccee332..0000000000
--- a/src/get-started/test-drive/_package-name.md
+++ /dev/null
@@ -1,18 +0,0 @@
-{{site.alert.note}}
-
-  When creating a new Flutter app, some Flutter IDE plugins ask for a
-  company domain name in reverse order, something like `com.example`.
-  The company domain name and project name are used together as the
-  package name for Android (the Bundle ID for iOS) when the app is released.
-  If you think that the app might be released,
-  it's better to specify the package name now.
-  The package name can't be changed once the app is released,
-  so make the name unique.
-
-  每当创建一个新的 Flutter 应用时，
-  一些 Flutter IDE 插件会请你输入一个类似 `com.example` 的包名，
-  包名（在 iOS 里叫 Bundle ID）一般都是公司域名的反写。
-  如果你的应用打算上架商店，建议一开始的时候把这个全网唯一的包名设置好，
-  因为应用上架之后就不能再修改了。
-
-{{site.alert.end}}
diff --git a/src/get-started/test-drive/_terminal.md b/src/get-started/test-drive/_terminal.md
deleted file mode 100644
index b079f145ca..0000000000
--- a/src/get-started/test-drive/_terminal.md
+++ /dev/null
@@ -1,71 +0,0 @@
-<div class="tab-pane" id="terminal" role="tabpanel" aria-labelledby="terminal-tab" markdown="1">
-
-## Create the app {#create-app}
-
-## 创建应用 {#create-app}
-
-Use the `flutter create` command to create a new project:
-
-使用 `flutter create` 命令来创建新的工程：
-
-```terminal
-$ flutter create my_app
-$ cd my_app
-```
-
-It is also possible to pass other arguments to `flutter create`,
-such as the project name, the organization name,
-or to specify the programming language used for the native platform:
-
-你可以在运行 `flutter create` 时传递其他参数，例如项目名 (**pubspec.yaml**)、
-组织名或者指定原生平台使用的语言：
-
-```terminal
-$ flutter create --project-name my_app --org dev.flutter --android-language java --ios-language objc my_app
-$ cd my_app
-```
-
-The command creates a Flutter project directory called `my_app` that
-contains a simple demo app that uses [Material Components][].
-
-该命令会创建一个名为 `myapp`，里面包含一个简单的示例应用，
-里面用到了 [Material 组件][Material Components]。
-
-{% include_relative _main-code-note.md %}
-
-## Run the app
-
-## 运行应用
-
- 1. Check that an Android device is running.
-   If none are shown, follow the device-specific instructions
-   on the [Install][] page for your OS.
-
-    检查一下 Android 设备是否已经正常运行。
-    如果应用未显示，请在 [安装][Install] 页面里，
-    根据你的操作系统按照设备相关说明进行操作。
-
-    ```terminal
-    $ flutter devices
-    ```
-
- 1. Run the app with the following command:
-
-    使用下面指令运行应用：
-
-   ```terminal
-   $ flutter run
-   ```
-
-{% capture save_changes -%}.
-{% endcapture %}
-
- 1. Type <kbd>r</kbd> in the terminal window.
-
-    在命令行窗口输入 <kbd>r</kbd>
-
-{% include_relative _try-hot-reload.md save_changes=save_changes %}
-{% include docs/run-profile.md %}
-
-</div>
-
diff --git a/src/get-started/test-drive/_try-hot-reload.md b/src/get-started/test-drive/_try-hot-reload.md
deleted file mode 100644
index b1b301ef50..0000000000
--- a/src/get-started/test-drive/_try-hot-reload.md
+++ /dev/null
@@ -1,60 +0,0 @@
-After the app build completes, you'll see the starter app on your device.
-
-当应用编译完成后，就可以在设备上运行这个起步应用了。
-
-{% include docs/app-figure.md img-class="site-mobile-screenshot border"
-    path-prefix="get-started" platform="iOS" image="starter-app.png"
-    caption="Starter app" %}
-
-## Try hot reload
-
-## 尝试热重载 (hot reload)
-
-Flutter offers a fast development cycle with _Stateful Hot Reload_,
-the ability to reload the code of a live running app without
-restarting or losing app state.
-Make a change to app source,
-tell your IDE or command-line tool that you want to hot reload,
-and see the change in your simulator, emulator, or device.
-
-Flutter 通过 **热重载** 提供快速开发周期，
-该功能支持应用程序在运行状态下重载代码，
-无需重新启动应用程序或者丢失程序运行状态。
-修改一下代码，然后告诉 IDE 或者命令行工具你需要热重载，
-然后看一下模拟器或者设备上应用的变化。
-
- 1. Open `lib/main.dart`.
- 
-    打开 `lib/main.dart`。
-    
- 1. Change the string
-
-    修改字符串
-
-    {% prettify dart %}
-      'You have [[strike]]pushed[[/strike]] the button this many times'
-    {% endprettify %}
-
-    to
-    
-    改为
-    
-    {% prettify dart %}
-      'You have [!clicked!] the button this many times'
-    {% endprettify %}
-
-    {{site.alert.important}}
-    
-      Do _not_ stop your app. Let your app run.
-      
-      **不要** 停止应用。保持应用处于运行状态。
-      
-    {{site.alert.end}}
-
- 1. Save your changes{{include.save_changes}}
-    
-    保存修改{{include.save_changes}}
-
-You'll see the updated string in the running app almost immediately.
-
-你会发现修改后的字符串几乎马上出现在正在运行的应用程序上。
diff --git a/src/get-started/test-drive/_vscode.md b/src/get-started/test-drive/_vscode.md
deleted file mode 100644
index 12a9eb694e..0000000000
--- a/src/get-started/test-drive/_vscode.md
+++ /dev/null
@@ -1,115 +0,0 @@
-<div class="tab-pane active" id="vscode" role="tabpanel" aria-labelledby="vscode-tab" markdown="1">
-
-## Create the app {#create-app}
-
-## 创建应用 {#create-app}
-
-  1. Invoke **View > Command Palette**.
-
-     打开 **View > Command Palette**。
-
-  1. Type "flutter", and select the **Flutter: New Project**.
-
-     输入「flutter」，选择 **Flutter: New Project**。
-
-  1. Select **Application**.
-
-     选择 **Application**。
-
-  1. Create or select the parent directory for the new project folder.
-
-     新建或选择新项目将存放的上层目录。
-
-  1. Enter a project name, such as `my_app`, and press **Enter**.
-
-     输入项目名称，例如 `my_app`，并点击 **Enter**。
-
-  1. Wait for project creation to complete and the `main.dart`
-     file to appear.
-
-     等待项目创建完成，并且 `main.dart` 文件展现在编辑器中。
-
-The above commands create a Flutter project directory called `my_app` that
-contains a simple demo app that uses [Material Components][].
-
-该命令会创建一个名为 `myapp`，里面包含一个简单的示例程序，
-里面用到了 [Material 组件][Material Components]。
-
-{% include_relative _package-name.md  %}
-
-{% include_relative _restart-vscode.md %}
-
-{% include_relative _main-code-note.md  %}
-
-## Run the app
-
-1. Locate the VS Code status bar
-   (the blue bar at the bottom of the window):<br>
-   ![status bar][]{:.mw-100.pt-1.pb-2}
-
-   定位到 VS Code 的状态栏（窗口底部的蓝色栏）：<br>
-   ![status bar][]{:.mw-100.pt-1.pb-2}
-
-1. Select a device from the **Device Selector** area.
-   For details, see [Quickly switching between Flutter devices][].
-
-   从 **Device Selector** 区域选择一个设备。更多信息，参考
-   [快速切换用于 Flutter 的设备][Quickly switching between Flutter devices]。
-
-   - If no device is available, and you want to use a device simulator,
-     click **No Devices** and click
-     **Start iOS Simulator** to launch a simulator.
-
-     如果没有可用的设备，而同时你想使用模拟器，点击 **No Devices**
-     并点击 **Start iOS Simulator** 启动一个模拟器。
-
-     {{site.alert.warning}}
-
-       You might not see **Start iOS Simulator** option
-       when you click **No Devices** in VS Code.
-       If you're on Mac, then you might have to run following command
-       in terminal to launch a simulator.
-
-       点击 VS Code 的 **No Devices** 时，
-       你可能不会看到 **Start iOS Simulator** 的选项。
-       如果你在使用 macOS，请在终端中执行以下命令：
-
-       ```terminal
-       $ open -a simulator
-       ```
-
-       On Windows or Linux, it's not possible to launch an iOS simulator.
-
-       在 Windows 或 Linux 上你无法启动 iOS 模拟器。
-
-     {{site.alert.end}}
-
-   - To setup a real device, follow the device-specific instructions
-     on the [Install][] page for your OS.
-
-     想要配置真机用于调试，请查看你正在使用的系统的对应
-     [安装][Install] 设备指导。
-
-1. Invoke **Run > Start Debugging** or press <kbd>F5</kbd>.
-
-   运行 **Run > Start Debugging** 或按下 <kbd>F5</kbd>。
-
-1. Wait for the app to launch&mdash;progress is printed
-   in the **Debug Console** view.
-
-   等待应用启动&mdash;&mdash;启动进度会在 **Debug Console** 中展示。
-
-{% capture save_changes -%}
-  : invoke **Save All**, or click **Hot Reload**
-  {% include_relative _hot-reload-icon.md %}.
-{% endcapture %}
-
-{% include_relative _try-hot-reload.md save_changes=save_changes %}
-{% include docs/run-profile.md %}
-
-[Install]: {{site.url}}/get-started/install
-[Material Components]: {{site.material}}/components
-[Quickly switching between Flutter devices]: https://dartcode.org/docs/quickly-switching-between-flutter-devices
-[status bar]: {{site.url}}/assets/images/docs/tools/vs-code/device_status_bar.png
-
-</div>
diff --git a/src/get-started/test-drive/index.md b/src/get-started/test-drive/index.md
index 5a5450ec63..03a85a2c9a 100644
--- a/src/get-started/test-drive/index.md
+++ b/src/get-started/test-drive/index.md
@@ -6,9 +6,9 @@ description: 如何使用 hot reload 创建一个 Flutter 应用模版。
 tags: Flutter安装,Flutter环境搭建
 keywords: Flutter IDE,Flutter编辑器,Android Studio,VS Code,Flutter插件
 prev:
-  title: Set up an editor
-  title: 编辑工具设定
-  path: /docs/get-started/editor
+  title: Install Flutter
+  title: 安装和环境配置
+  path: /docs/get-started/install
 next:
   title: Write your first Flutter app
   title: 编写第一个 Flutter 应用
@@ -16,44 +16,79 @@ next:
 toc: false
 ---
 
-This page describes the following tasks:
+{% case os %}
+{% when 'Windows' -%}
+   {% assign path='C:\dev\' %}
+   {% assign terminal='PowerShell' %}
+   {% assign prompt1='D:>' %}
+   {% assign prompt2=path | append: '>' %}
+   {% assign dirdl='%CSIDL_DEFAULT_DOWNLOADS%\' %}
+{% when "macOS" -%}
+   {% assign path='~/development/' %}
+   {% assign terminal='the Terminal' %}
+   {% assign prompt1='$' %}
+   {% assign prompt2='$' %}
+   {% assign dirdl='~/Downloads/' %}
+{% else -%}
+   {% assign path='/usr/bin/' %}
+   {% assign terminal='a shell' %}
+   {% assign prompt1='$' %}
+   {% assign prompt2='$' %}
+   {% assign dirdl='~/Downloads/' %}
+{% endcase -%}
 
-本篇文章讲解以下内容：
+## What you'll learn
 
-1. How to create a new Flutter app from templates.
+## 你将了解到什么
 
-   如何基于模板创建新的 Flutter 应用。
+1. How to create a new Flutter app from a sample template.
 
-1. How to run the created Flutter app.
+   如何基于示例模板创建新的 Flutter 应用。
 
-   如何运行创建好的 Flutter 应用。
+1. How to run the new Flutter app.
+
+   如何运行新的 Flutter 应用。
 
 1. How to use "hot reload" after you make changes to the app.
 
    如何在应用中使用「热重载」应用你的更改。
 
-Details for these tasks depend on the integrated development environment
-(IDE) you use.
 
-这些任务的细节会根据你使用的 IDE 的不同有所变化。
+## Guide depends on your IDE
+
+## 指南（根据不同的 IDE）
+
+These tasks depend on which integrated development environment (IDE) you use.
+
+这些工作的细节会根据你使用 IDE 的不同，有所变化。
+
+* **Option 1** explains how to code with Visual Studio Code and its Flutter extension.
+
+  **选项 1** 讲解如何使用 Visual Studio Code 及其 Flutter 扩展进行编码。
 
-The first two options listed rely on the Flutter plugin for
-the respective IDE.
-Visual Studio Code, Android Studio, and IntelliJ IDEA Community,
-Educational, and Ultimate editions support Flutter development
-through plugins.
+* **Option 2** explains how to code with Android Studio or IntelliJ IDEA with
+  its Flutter plugin.
 
-前两个任务依赖于 IDE 上的 Flutter 插件。
-Visual Studio Code、Android Studio、以及 IntelliJ IDEA 的
-Community、Educational 和 Ultimate 版本都通过插件支持 Flutter 开发。
+  **选项 2** 讲解如何使用 Android Studio 或 IntelliJ IDEA 及其 Flutter 插件进行编码。
 
-The third option explains how to use an editor of your choice and
-the terminal to run the commands.
+  Flutter supports IntelliJ IDEA Community, Educational, and Ultimate editions.
 
-第三个任务向你解释了如何用你使用的编辑器或者终端来运行命令。
+  Flutter 支持 IntelliJ IDEA Community、Educational 和 Ultimate editions。
+
+* **Option 3** uses explains how to code with an editor of your choice then use the
+  the terminal to compile and debug your code.
+
+  **选项 3** 讲解如何使用自己选择的编辑器编写代码，
+  然后使用终端编译和调试代码。
+
+## Choose your IDE
+
+## 选择你的 IDE
 
 Select your preferred IDE for Flutter apps.
 
+为 Flutter 应用选择你喜欢的 IDE。
+
 {% comment %} Nav tabs {% endcomment -%}
 <ul class="nav nav-tabs" id="editor-setup" role="tablist">
   <li class="nav-item">
@@ -69,7 +104,7 @@ Select your preferred IDE for Flutter apps.
 
 {% comment %} Tab panes {% endcomment -%}
 <div class="tab-content">
-  {% include_relative _vscode.md %}
-  {% include_relative _androidstudio.md %}
-  {% include_relative _terminal.md %}
+  {% include docs/install/test-drive/vscode.md %}
+  {% include docs/install/test-drive/androidstudio.md %}
+  {% include docs/install/test-drive/terminal.md %}
 </div>
diff --git a/src/index.md b/src/index.md
index b0a7475e87..3846b23992 100644
--- a/src/index.md
+++ b/src/index.md
@@ -9,6 +9,9 @@ tags: Flutter中文文档
 keywords: Flutter文档,Flutter汉语文档,Flutter开发导航
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 {% for card in site.data.docs_cards -%}
   {% capture index0Modulo3 -%}{{ forloop.index0 | modulo:3 }}{% endcapture -%}
   {% capture indexModulo3 -%}{{ forloop.index | modulo:3 }}{% endcapture -%}
@@ -60,7 +63,6 @@ Coming from another platform? Check out Flutter for:
 - [给 iOS SwiftUI 开发者的 Flutter 指南][SwiftUI]
 - [给 iOS UIKit 开发者的 Flutter 指南][UIKit]
 - [给 React Native 开发者的 Flutter 指南][React Native]
-- [给 Web 开发者的 Flutter 指南][Web]
 - [给 Xamarin.Forms 开发者的 Flutter 指南][Xamarin.Forms]
 
 [Building layouts][]
@@ -101,7 +103,6 @@ Coming from another platform? Check out Flutter for:
 [UIKit]: {{site.url}}/get-started/flutter-for/uikit-devs
 [React Native]: {{site.url}}/get-started/flutter-for/react-native-devs
 [Understanding constraints]: {{site.url}}/ui/layout/constraints
-[web]: {{site.url}}/get-started/flutter-for/web-devs
 [Xamarin.Forms]: {{site.url}}/get-started/flutter-for/xamarin-forms-devs
 
 ### Videos
@@ -128,26 +129,26 @@ widgets in [What is State?][]
 <div class="card-deck card-deck--responsive">
     <div class="video-card">
         <div class="card-body">
-            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="//player.bilibili.com/player.html?aid=557525809&bvid=BV1Se4y1Z74p&cid=818071255&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> 
+            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{bili-embed}}?aid=557525809&bvid=BV1Se4y1Z74p&cid=818071255&page=1&autoplay=false" title="构建第一个 Flutter 应用"  {{bili-set}}></iframe> 
         </div>
     </div>
     <div class="video-card">
         <div class="card-body">
-            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="//player.bilibili.com/player.html?aid=815087524&bvid=BV14G4y167Tu&cid=818431224&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> 
+            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{bili-embed}}?aid=815087524&bvid=BV14G4y167Tu&cid=818431224&page=1&autoplay=false" title="什么是状态？" {{bili-set}}></iframe> 
         </div>
     </div>
 </div>
 
 [first-app]: {{site.youtube-site}}/watch?v=xWV71C2kp38
 [What is State?]: {{site.youtube-site}}/watch?v=QlwiL_yLh6E
-[构建第一个 Flutter 应用]: https://www.bilibili.com/video/BV1Se4y1Z74p
-[什么是状态]: https://www.bilibili.com/video/BV14G4y167Tu
+[构建第一个 Flutter 应用]: {{bili-video}}/BV1Se4y1Z74p
+[什么是状态]: {{bili-video}}/BV14G4y167Tu
 
 {:.text-center}
 <b><t>Only have 60 seconds? Learn how to build and deploy a Flutter App!</t><t>一分钟！快速学习构建和部署 Flutter 应用</t></b>
 
 <div style="display: flex; align-items: center; justify-content: center; flex-direction: column;">
-  <iframe style="max-width: 100%" width="560" height="315" src="{{site.youtube-site}}/embed/ZnufaryH43s" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+  <iframe style="max-width: 100%" width="560" height="315" src="{{yt-embed}}/ZnufaryH43s" title="Learn how to build and deploy a Flutter app in 60 seconds" {{yt-set}}></iframe>
 </div>
 
 ## Want to skill up?
@@ -166,17 +167,17 @@ using helper methods][standalone-widgets] or
 <div class="card-deck card-deck--responsive">
     <div class="video-card">
         <div class="card-body">
-            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{site.youtube-site}}/embed/IOyq-eTRhvo" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> 
+            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{yt-embed}}/IOyq-eTRhvo" title="Learn the difference between Widgets and Helper Methods" {{yt-set}}></iframe>
         </div>
     </div>
     <div class="video-card">
         <div class="card-body">
-            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{site.youtube-site}}/embed/rIaaH87z1-g" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> 
+            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{yt-embed}}/rIaaH87z1-g" title="Learn how to demystify BuildContext" {{yt-set}}></iframe>
         </div>
     </div>
 </div>
 
-[standalone-widgets]: {{site.youtube-site}}/watch?v=IOyq-eTRhvo   
+[standalone-widgets]: {{site.youtube-site}}/watch?v=IOyq-eTRhvo
 [buildcontext]: {{site.youtube-site}}/watch?v=rIaaH87z1-g
 
 To learn about all of the Flutter video series,
diff --git a/src/packages-and-plugins/using-packages.md b/src/packages-and-plugins/using-packages.md
index eb9f60a3ed..9a7a5a565a 100644
--- a/src/packages-and-plugins/using-packages.md
+++ b/src/packages-and-plugins/using-packages.md
@@ -7,6 +7,9 @@ tags: Packages,插件
 keywords: 使用packages,Flutter第三方库
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 <?code-excerpt path-base="development/plugin_api_migration"?>
 
 Flutter supports using shared packages contributed by other developers
@@ -61,7 +64,7 @@ Flutter 支持使用其他开发者向 Flutter 和 Dart 生态系统贡献的共
     或其任意组合的平台编写。
     比如：某个插件可以为 Flutter 应用提供使用原生平台的摄像头的功能。
 
-  <iframe width="560" height="315" src="https://player.bilibili.com/player.html?bvid=BV1dY4y1r7xD&page=1&autoplay=false" title="Bilibili video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+  <iframe width="560" height="315" src="{{bili-embed}}?bvid=BV1dY4y1r7xD&page=1&autoplay=false" title="了解 package 和 plugin 的区别" {{bili-set}}></iframe>
 
 {{site.alert.end}}
 
@@ -92,7 +95,6 @@ see [Adding assets and images][].
 [developing packages]: {{site.url}}/packages-and-plugins/developing-packages
 [FlutterFire]: {{site.github}}/firebase/flutterfire
 
-
 [`go_router`]: {{site.pub-pkg}}/go_router
 [`http`]: {{site.url}}/cookbook/networking/fetch-data
 [pub.dev]: {{site.pub}}
@@ -422,39 +424,42 @@ well as a list of all prior versions
 （例如，参阅 [`url_launcher`][] package）以及所有先前版本的列表：
 [url_launcher 版本列表][`url_launcher` versions]。
 
-To ensure that the app doesn't break when a
-package is updated,
-specify a version range using one of the
-following formats:
+To ensure that the app doesn't break when you update a package,
+specify a version range using one of the following formats.
 
 为了确保在更新 package 的时候你的应用不会崩溃，
 我们建议使用以下格式之一来指定版本范围：
 
-* Range constraints: Specify a minimum and maximum version. For example:
+* **Ranged constraints:** Specify a minimum and maximum version.
 
-  范围限制：指定一个最小和最大的版本号，例如：
+  **范围限制：**指定一个最小和最大的版本号。
 
   ```yaml
   dependencies:
     url_launcher: '>=5.4.0 <6.0.0'
   ```
 
-* Range constraints with [*caret syntax*][]
-  are similar to regular range constraints:
+* **Ranged constraints using the [caret syntax][]:**
+  Specify the version that serves as the inclusive minimum version.
+  This covers all versions from that version to the next major version.
 
-  使用 [*caret语法*][*caret syntax*] 的范围约束与常规的范围约束类似：
+  **使用 [*caret语法*][caret syntax] 的范围约束：**
+  指定最小版本，这包括从该版本到下一个主要版本的所有版本。
   
   ```yaml
   dependencies:
     collection: '^5.4.0'
   ```
 
-For additional details,
-see the [package versioning guide][].
+  This syntax means the same as the one noted in the first bullet.
+
+  该语法与第一项中的语法含义相同。
+
+To learn more, check out the [package versioning guide][].
 
 了解更详细的信息，参阅 [Pub 版本管理指南][package versioning guide]。
 
-[*caret syntax*]: {{site.dart-site}}/tools/pub/dependencies#caret-syntax
+[caret syntax]: {{site.dart-site}}/tools/pub/dependencies#caret-syntax
 [package versioning guide]: {{site.dart-site}}/tools/pub/versioning
 [`url_launcher` versions]: {{site.pub-pkg}}/url_launcher/versions
 
@@ -462,16 +467,13 @@ see the [package versioning guide][].
 
 ### 更新 package 依赖
 
-When running `flutter pub get` (**Packages get** in IntelliJ
-or Android Studio) for the first time after adding a package,
-When running `flutter pub get` 
+When running `flutter pub get`
 for the first time after adding a package,
 Flutter saves the concrete package version found in the `pubspec.lock`
 [lockfile][]. This ensures that you get the same version again
 if you, or another developer on your team, run `flutter pub get`.
 
-当你添加一个 package 后首次运行
-`flutter pub get`（IntelliJ 或 Android Studio 中的 **Packages Get**），
+当添加 package 后首次运行 `flutter pub get` 时，
 Flutter 将会保存在 `pubspec.lock` [lockfile][] 中找到的具体 package 版本。
 这将确保当你或者团队中其他开发者运行
 `flutter pub get` 后能得到相同版本的 package。
@@ -671,7 +673,6 @@ To use this package:
     }
     ```
 
-
 [`css_colors`]: {{site.pub-pkg}}/css_colors
 
 1. Run the app. The app's background should now be orange.
@@ -774,4 +775,3 @@ To use this plugin:
    运行应用（如果你的应用在添加插件之前已经运行，请停止并重启应用）。
    当你点击 **Show Flutter homepage** 时，
    你将看到手机默认浏览器打开并出现 Flutter 主页。
-
diff --git a/src/perf/best-practices.md b/src/perf/best-practices.md
index 29d4e82abc..2f645d3038 100644
--- a/src/perf/best-practices.md
+++ b/src/perf/best-practices.md
@@ -7,6 +7,9 @@ description: How to ensure that your Flutter app is performant.
 description: 确保 Flutter 应用的性能。
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 {% include docs/performance.md %}
 
 Generally, Flutter applications are performant by default,
@@ -184,7 +187,7 @@ For more information, check out:
 [`StatefulWidget`]: {{site.api}}/flutter/widgets/StatefulWidget-class.html
 [`StatelessWidget`]: {{site.api}}/flutter/widgets/StatelessWidget-class.html
 [`TransitionBuilder`]: {{site.api}}/flutter/widgets/TransitionBuilder.html
-[Widgets vs helper methods]: {{site.youtube-site}}/watch?v=IOyq-eTRhvo
+[Widgets vs helper methods]: {{yt-watch}}?v=IOyq-eTRhvo
 
 ---
 
@@ -643,7 +646,7 @@ check out the video [Why 60fps?][]
 请看视频 [60fps 是啥意思？][Why 60fps?]
 
 [profile mode]: {{site.url}}/testing/build-modes#profile
-[Why 60fps?]: https://www.bilibili.com/video/BV1b441157sA/
+[Why 60fps?]: {{bili-video}}/BV1b441157sA/
 
 ## Pitfalls
 
diff --git a/src/perf/faq.md b/src/perf/faq.md
index ad7909f442..378a403481 100644
--- a/src/perf/faq.md
+++ b/src/perf/faq.md
@@ -63,7 +63,7 @@ about evaluating and debugging Flutter's performance.
   * [Perfetto](https://ui.perfetto.dev/)
   * [speedscope](https://www.speedscope.app/)
 
-[systrace]: https://developer.android.com/studio/profile/systrace
+[systrace]: {{site.android-dev}}/studio/profile/systrace
 [tracing]: https://www.chromium.org/developers/how-tos/trace-event-profiling-tool
 [traceutil]: https://fuchsia.dev/fuchsia-src/development/tracing/usage-guide
 
@@ -181,7 +181,7 @@ about evaluating and debugging Flutter's performance.
     用 [GitHub 上 engine 仓库][GitHub engine repository commits] 最近提交的 hash 值替换 URL 中的 hash 值。
 
 [binary size dashboard]: https://storage.flutter-io.cn/flutter_infra_release/flutter/241c87ad800beeab545ab867354d4683d5bfb6ce/android-arm-release/sizes/index.html
-[GitHub engine repository commits]: {{site.github}}/flutter/engine/commits
+[GitHub engine repository commits]: {{site.repo.engine}}/commits
 
 * How can I take a screenshot of an app that is running and export it
   as a SKP file?
diff --git a/src/perf/impeller.md b/src/perf/impeller.md
index 2505c36b7d..e58b7eac58 100644
--- a/src/perf/impeller.md
+++ b/src/perf/impeller.md
@@ -3,6 +3,8 @@ title: Impeller rendering engine
 description: What is Impeller and how to enable it?
 ---
 
+{% include docs/yt_shims.liquid %}
+
 ## What is Impeller?
 
 Impeller provides a new rendering runtime for Flutter.
@@ -11,14 +13,14 @@ The Flutter team's believes this solves Flutter's
 Impeller precompiles a [smaller, simpler set of shaders][]
 at Engine build time so they don't compile at runtime.
 
-[early-onset jank]: {{site.github}}/flutter/flutter/projects/188
-[smaller, simpler set of shaders]: {{site.github}}/flutter/flutter/issues/77412
+[early-onset jank]: {{site.repo.flutter}}/projects/188
+[smaller, simpler set of shaders]: {{site.repo.flutter}}/issues/77412
 
 For a video introduction to Impeller, check out the following
 talk from Google I/O 2023.
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/vd5NqS01rlA" title="YouTube video player - Introducing Impeller - Flutter's new rendering engine" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
-[Introducing Impeller - Flutter's new rendering engine](https://www.youtube.com/watch?v=vd5NqS01rlA)
+<iframe width="560" height="315" src="{{yt-embed}}/vd5NqS01rlA" title="YouTube video player - Introducing Impeller - Flutter's new rendering engine" {{yt-set}}></iframe>
+[Introducing Impeller - Flutter's new rendering engine]({{yt-watch}}?v=vd5NqS01rlA)
 
 Impeller has the following objectives:
 
@@ -54,7 +56,7 @@ Flutter enables Impeller by default on iOS.
   pass `--no-enable-impeller` to the `flutter run` command.
 
   ```terminal
-  $ flutter run --no-enable-impeller
+  flutter run --no-enable-impeller
   ```
 
 * To _disable_ Impeller on iOS when deploying your app,
@@ -72,11 +74,11 @@ with Impeller on iOS, file an issue in the [GitHub tracker][file-issue].
 Prefix the issue title with `[Impeller]` and
 include a small reproducible test case.
 
-[file-issue]: {{site.github}}/flutter/flutter/issues/new/choose
+[file-issue]: {{site.repo.flutter}}/issues/new/choose
 
 ### macOS
 
-Impeller is available for macOS in preview as of the 
+Impeller is available for macOS in preview as of the
 Flutter 3.13 stable release. It continues to be
 in preview as of the 3.16 release.
 
@@ -84,7 +86,7 @@ To enable Impeller on macOS when debugging,
 pass `--enable-impeller` to the `flutter run` command.
 
 ```terminal
-$ flutter run --enable-impeller
+flutter run --enable-impeller
 ```
 
 To enable Impeller on macOS when deploying your app,
@@ -111,7 +113,7 @@ You can try Impeller on Vulkan-capable Android devices
 by passing `--enable-impeller` to `flutter run`:
 
 ```terminal
-$ flutter run --enable-impeller
+flutter run --enable-impeller
 ```
 
 Or, you can add the following setting to your project’s
@@ -139,7 +141,7 @@ file an issue in the [GitHub tracker][file-issue].
 Prefix the issue title with `[Impeller]` and
 include a small reproducible test case.
 
-Please include the following information when 
+Please include the following information when
 submitting an issue for Impeller:
 
 * The device you are running on,
@@ -149,7 +151,6 @@ submitting an issue for Impeller:
   Zip the file and attach it to the GitHub issue.
 
 [export of the performance trace]:{{site.url}}/tools/devtools/performance#import-and-export
-[file-issue]: {{site.github}}/flutter/flutter/issues/new/choose
 [Impeller project board]: {{site.github}}/orgs/flutter/projects/21
 
 ## Architecture
@@ -157,16 +158,15 @@ submitting an issue for Impeller:
 To learn more details about Impeller's design and architecture,
 check out the [README.md][] file in the source tree.
 
-[README.md]: {{site.github}}/flutter/engine/blob/main/impeller/README.md
+[README.md]: {{site.repo.engine}}/blob/main/impeller/README.md
 
 ## Additional Information
 
-* [Frequently asked questions]({{site.github}}/flutter/engine/blob/main/impeller/docs/faq.md)
-* [Impeller's coordinate system]({{site.github}}/flutter/engine/blob/main/impeller/docs/coordinate_system.md)
-* [How to set up Xcode for GPU frame captures with metal]({{site.github}}/flutter/engine/blob/main/impeller/docs/xcode_frame_capture.md)
-* [Learning to read GPU frame captures]({{site.github}}/flutter/engine/blob/main/impeller/docs/read_frame_captures.md)
-* [How to enable metal validation for command line apps]({{site.github}}/flutter/engine/blob/main/impeller/docs/metal_validation.md)
-* [How Impeller works around the lack of uniform buffers in Open GL ES 2.0]({{site.github}}/flutter/engine/blob/main/impeller/docs/ubo_gles2.md)
-* [Guidance for writing efficient shaders]({{site.github}}/flutter/engine/blob/main/impeller/docs/shader_optimization.md)
-* [How color blending works in Impeller]({{site.github}}/flutter/engine/blob/main/impeller/docs/blending.md)
-
+* [Frequently asked questions]({{site.repo.engine}}/blob/main/impeller/docs/faq.md)
+* [Impeller's coordinate system]({{site.repo.engine}}/blob/main/impeller/docs/coordinate_system.md)
+* [How to set up Xcode for GPU frame captures with metal]({{site.repo.engine}}/blob/main/impeller/docs/xcode_frame_capture.md)
+* [Learning to read GPU frame captures]({{site.repo.engine}}/blob/main/impeller/docs/read_frame_captures.md)
+* [How to enable metal validation for command line apps]({{site.repo.engine}}/blob/main/impeller/docs/metal_validation.md)
+* [How Impeller works around the lack of uniform buffers in Open GL ES 2.0]({{site.repo.engine}}/blob/main/impeller/docs/ubo_gles2.md)
+* [Guidance for writing efficient shaders]({{site.repo.engine}}/blob/main/impeller/docs/shader_optimization.md)
+* [How color blending works in Impeller]({{site.repo.engine}}/blob/main/impeller/docs/blending.md)
diff --git a/src/perf/index.md b/src/perf/index.md
index 23d94171db..8a60678e73 100644
--- a/src/perf/index.md
+++ b/src/perf/index.md
@@ -7,12 +7,14 @@ tags: Flutter性能
 keywords: 性能评估,包体积,内存占用
 ---
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=243695231&bvid=BV1zv411B7gY&cid=207457008&page=1&autoplay=false" 
-frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; 
-picture-in-picture" allowfullscreen></iframe>
-[Flutter performance basics]({{site.youtube-site}}/watch?v=PKGguGUwSYE)
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
 
-[Flutter 性能入门](https://www.bilibili.com/video/BV1zv411B7gY/)
+<iframe width="560" height="315" src="{{bili-embed}}?aid=243695231&bvid=BV1zv411B7gY&cid=207457008&page=1&autoplay=false" title="了解提高 Flutter 性能的技巧" {{bili-set}}></iframe>
+
+[Flutter performance basics]({{yt-watch}}?v=PKGguGUwSYE)
+
+[Flutter 性能入门]({{bili-video}}/BV1zv411B7gY/)
 
 {{site.alert.note}}
 
@@ -31,9 +33,9 @@ What is performance? Why is performance important? How do I improve performance?
 
 什么是性能？为什么性能很重要？如何才能提升性能？
 
-Our goal is to answer those three questions (mainly the third one), and 
-anything related to them. This document should serve as the single entry 
-point or the root node of a tree of resources that addresses any questions 
+Our goal is to answer those three questions (mainly the third one), and
+anything related to them. This document should serve as the single entry
+point or the root node of a tree of resources that addresses any questions
 that you have about performance.
 
 我们的目标是回答这三个问题（主要是第三个）以及任何与之相关的话题。
@@ -42,6 +44,7 @@ that you have about performance.
 The answers to the first two questions are mostly philosophical,
 and not as helpful to many developers who visit this page with specific
 performance issues that need to be solved.
+Therefore, the answers to those
 questions are in the [appendix]({{site.url}}/perf/appendix).
 
 前两个问题的答案比较哲学，对于正在阅读这篇文章的开发者而言，当他们需要解决特定的性能问题时，并没有什么帮助。
@@ -57,9 +60,9 @@ and which tools and APIs are available to get the metrics.
 在 [指标]({{site.url}}/perf/metrics) 页面，你可以看到一些现有的指标，
 以及哪些工具和 API 可以用于获取这些指标。
 
-There is a list of [Frequently asked questions]({{site.url}}/perf/faq), 
-so you can find out if the questions you have or the problems you're having 
-were already answered or encountered, and whether there are existing solutions. 
+There is a list of [Frequently asked questions]({{site.url}}/perf/faq),
+so you can find out if the questions you have or the problems you're having
+were already answered or encountered, and whether there are existing solutions.
 (Alternatively, you can check the Flutter GitHub issue database using the
 [performance][performance] label.)
  
@@ -68,9 +71,9 @@ were already answered or encountered, and whether there are existing solutions.
 以及是否有现成的解决方案。
 （你也可以查看 GitHub issues 里含有 [性能][performance] 标签的内容。） 
 
-Finally, the performance issues are divided into four categories. They 
-correspond to the four labels that are used in the Flutter GitHub issue 
-database: "[perf: speed][speed]", "[perf: memory][memory]", 
+Finally, the performance issues are divided into four categories. They
+correspond to the four labels that are used in the Flutter GitHub issue
+database: "[perf: speed][speed]", "[perf: memory][memory]",
 "[perf: app size][size]", "[perf: energy][energy]".
 
 最后，性能问题可以分为四类，对应 GitHub issue 里的四个标签：
@@ -84,11 +87,12 @@ The rest of the content is organized using those four categories.
 Let's put "speed" (rendering) first as it's the most popular performance issue
 category.
 {% endcomment -%}
+
 ## Speed
 
 ## 流畅度
 
-Are your animations janky (not smooth)? Learn how to 
+Are your animations janky (not smooth)? Learn how to
 evaluate and fix rendering issues.
 
 你的动画是否卡顿（不流畅）？学习如何评估和修复渲染问题。
@@ -104,7 +108,7 @@ in some future pages.
 
 {% comment %}
 
-TODO(https://github.com/flutter/website/issues/8249): Reintroduce this article and add this link back.
+TODO(<https://github.com/flutter/website/issues/8249>): Reintroduce this article and add this link back.
 
 ## Memory
 
@@ -131,7 +135,7 @@ the quicker it is to download.
 
 {% comment %}
 
-TODO(https://github.com/flutter/website/issues/8249): Reintroduce this article and add this link back.
+TODO(<https://github.com/flutter/website/issues/8249>): Reintroduce this article and add this link back.
 
 ## Energy
 
diff --git a/src/perf/isolates.md b/src/perf/isolates.md
index 64ff4d2bb4..461563a705 100644
--- a/src/perf/isolates.md
+++ b/src/perf/isolates.md
@@ -3,6 +3,8 @@ title: Concurrency and isolates
 description: Multithreading in Flutter using Dart isolates.
 ---
 
+{% include docs/yt_shims.liquid %}
+
 <?code-excerpt path-base="development/concurrency/isolates/"?>
 
 All Dart code runs in [isolates]({{site.dart-site}}/language/concurrency),
@@ -16,12 +18,12 @@ the main isolate.
 In most cases, this model allows for simpler programming and
 is fast enough that the application's UI doesn't become unresponsive.
 
-Sometimes though, 
+Sometimes though,
 applications need to perform exceptionally large computations
 that can cause "UI jank" (jerky motion).
 If your app is experiencing jank for this reason,
 you can move these computations to a helper isolate.
-This allows the underlying runtime environment 
+This allows the underlying runtime environment
 to run the computation concurrently
 with the main UI isolate's work
 and takes advantage of multi-core devices.
@@ -64,9 +66,7 @@ documentation.
 
 [concurrency page]: {{site.dart-site}}/language/concurrency
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/vl_AaCgudcY" 
- frameborder="0" allow="accelerometer; autoplay;encrypted-media; gyroscope; picture-in-picture" 
- allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/vl_AaCgudcY" title="Learn about Isolates and Loop Events in Flutter" {{yt-set}}></iframe>
 
 ## Common use cases for isolates
 
@@ -97,8 +97,8 @@ That said, isolates are commonly used for the following:
 ## Message passing between isolates
 
 Dart's isolates are an implementation of the [Actor model][].
-They can only communicate with each other by message passing, 
-which is done with [`Port` objects][]. 
+They can only communicate with each other by message passing,
+which is done with [`Port` objects][].
 When messages are "passed" between each other,
 they are generally copied from the sending isolate to the
 receiving isolate.
@@ -110,14 +110,14 @@ The only [objects that aren't copied when passed][] to an isolate
 are immutable objects that can't be changed anyway,
 such a String or an unmodifiable byte.
 When you pass an immutable object between isolates,
-a reference to that object is sent across the port, 
+a reference to that object is sent across the port,
 rather than the object being copied,
 for better performance.
 Because immutable objects can't be updated,
 this effectively retains the actor model behavior.
 
 [`Port` objects]: {{site.dart.api}}/stable/dart-isolate/ReceivePort-class.html
-[objects that aren't copied when passed]: https://api.dart.dev/stable/3.2.0/dart-isolate/SendPort/send.html
+[objects that aren't copied when passed]: {{site.dart.api}}/stable/3.2.0/dart-isolate/SendPort/send.html
 
 An exception to this rule is
 when an isolate exits when it sends a message using the `Isolate.exit` method.
@@ -175,7 +175,7 @@ Future<List<Photo>> getPhotos() async {
 }
 ```
 
-For a complete walkthrough of using Isolates to 
+For a complete walkthrough of using Isolates to
 parse JSON in the background, see [this cookbook recipe][].
 
 [this cookbook recipe]: {{site.url}}/cookbook/networking/background-parsing
@@ -188,7 +188,7 @@ and to copy objects from one isolate to another.
 If you're doing the same computation using `Isolate.run` repeatedly,
 you might have better performance by creating isolates that don't exit immediately.
 
-To do this, you can use a handful of lower-level isolate-related APIs that 
+To do this, you can use a handful of lower-level isolate-related APIs that
 `Isolate.run` abstracts:
 
 - [`Isolate.spawn()`][] and [`Isolate.exit()`][]
@@ -246,7 +246,7 @@ Previously, [marshaling data][] to the host platform could waste UI thread time,
 and can now be done in a background isolate.
 
 Platform channel isolates use the [`BackgroundIsolateBinaryMessenger`][] API.
-The following snippet shows an example of using 
+The following snippet shows an example of using
 the `shared_preferences` package in a background isolate.
 
 <?code-excerpt "lib/isolate_binary_messenger.dart"?>
@@ -298,7 +298,7 @@ and it's important to keep in mind when you consider using isolates.
 Dart web platforms, including Flutter web,
 don't support isolates.
 If you're targeting the web with your Flutter app,
-you can use the `compute` method to ensure your code compiles. 
+you can use the `compute` method to ensure your code compiles.
 The [`compute()`][] method runs the computation on
 the main thread on the web,
 but spawns a new thread on mobile devices.
@@ -327,7 +327,7 @@ you can use platform channels in isolates to send messages to the host platform
 and receive responses to those messages.
 However, you can't receive unsolicited messages from the host platform.
 
-As an example, 
+As an example,
 you can't set-up a long-lived Firestore listener in a background isolate,
 because Firestore uses platform channels to push updates to Flutter,
 which are unsolicited.
@@ -339,20 +339,17 @@ For more information on isolates, check out the following resources:
 
 - If you're using many isolates, consider the [IsolateNameServer][] class in Flutter,
 or the pub package that clones the functionality for Dart applications not using
-Flutter. 
+Flutter.
 - Dart's Isolates are an implementation of the [Actor model][].
 - [isolate_agents][] is a package that abstracts Ports and make it easier to create long-lived isolates.  
 - Read more about the `BackgroundIsolateBinaryMessenger` API [announcement][].
 
-[announcement]: https://medium.com/flutter/introducing-background-isolate-channels-7a299609cad8
-[technical design proposal]: https://docs.google.com/document/d/1yAFw-6kBefuurXWTur9jdEUAckWiWJVukP1Iay8ehyU/edit#heading=h.722pnbmlqbkx
+[announcement]: {{site.flutter-medium}}/introducing-background-isolate-channels-7a299609cad8
 [Actor model]: https://en.wikipedia.org/wiki/Actor_model
-[isolate_agents]: https://medium.com/@gaaclarke/isolate-agents-easy-isolates-for-flutter-6d75bf69a2e7
+[isolate_agents]: {{site.medium}}/@gaaclarke/isolate-agents-easy-isolates-for-flutter-6d75bf69a2e7
 [marshaling data]: https://en.wikipedia.org/wiki/Marshalling_(computer_science)
-[Dart `Isolate`]: {{site.dart.api}}/stable/dart-isolate/Isolate-class.html
 [`compute()`]: {{site.api}}/flutter/foundation/compute.html
 [`Isolate.spawn()`]: {{site.dart.api}}/stable/dart-isolate/Isolate/spawn.html
-[`Isolate.run()`]: {{site.dart.api}}/stable/dart-isolate/Isolate/spawn.html
 [`Isolate.exit()`]: {{site.dart.api}}/stable/dart-isolate/Isolate/exit.html
 [`ReceivePort`]: {{site.dart.api}}/stable/dart-isolate/ReceivePort-class.html
 [`SendPort`]: {{site.dart.api}}/stable/dart-isolate/SendPort-class.html
diff --git a/src/perf/ui-performance.md b/src/perf/ui-performance.md
index be39b3c92c..c497ed8ca3 100644
--- a/src/perf/ui-performance.md
+++ b/src/perf/ui-performance.md
@@ -9,6 +9,9 @@ tags: Flutter性能
 keywords: 性能分析,性能调试工具,开发者工具,60fps,120fps,profile mode
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 {% include docs/performance.md %}
 
 {{site.alert.secondary}}
@@ -803,7 +806,7 @@ Flutter's tools and debugging in Flutter:
 [devtools]: {{site.url}}/tools/devtools
 [Flutter API]: {{site.api}}
 [Flutter inspector]: {{site.url}}/tools/devtools/inspector
-[Flutter inspector talk]: {{site.youtube-site}}/watch?v=JIcmJNT9DNI
+[Flutter inspector talk]: {{yt-watch}}?v=JIcmJNT9DNI
 [`PerformanceOverlay`]: {{site.api}}/flutter/widgets/PerformanceOverlay-class.html
-[video]: https://www.bilibili.com/video/BV1t54y1m7Qr/
+[video]: {{bili-video}}/BV1t54y1m7Qr/
 [Why Flutter Uses Dart]: https://hackernoon.com/why-flutter-uses-dart-dd635a054ebf
diff --git a/src/platform-integration/android/c-interop.md b/src/platform-integration/android/c-interop.md
index 757764002e..36b5b4f9ba 100644
--- a/src/platform-integration/android/c-interop.md
+++ b/src/platform-integration/android/c-interop.md
@@ -174,7 +174,7 @@ The native code is invoked from dart in `lib/native_add_bindings_generated.dart`
 
 原生代码会从 `lib/native_add_bindings_generated.dart` 被 Dart 调用。
 
-The bindings are generated with [package:ffigen](https://pub.dev/packages/ffigen).
+The bindings are generated with [package:ffigen]({{site.pub-pkg}}/ffigen).
 
 代码由 [package:ffigen](https://pub.flutter-io.cn/packages/ffigen) 生成。
 
diff --git a/src/platform-integration/android/restore-state-android.md b/src/platform-integration/android/restore-state-android.md
index 9f0b03f98f..bc6b430b15 100644
--- a/src/platform-integration/android/restore-state-android.md
+++ b/src/platform-integration/android/restore-state-android.md
@@ -94,7 +94,7 @@ Other considerations:
 [`RestorationMixin`]: {{site.api}}/flutter/widgets/RestorationMixin-mixin.html
 [`RestorationScope`]: {{site.api}}/flutter/widgets/RestorationScope-class.html
 [`restoreState`]: {{site.api}}/flutter/widgets/RestorationMixin/restoreState.html
-[VeggieSeasons]: {{site.github}}/flutter/samples/tree/main/veggieseasons
+[VeggieSeasons]: {{site.repo.samples}}/tree/main/veggieseasons
 
 ## Restoring navigation state
 
@@ -145,10 +145,10 @@ check out the following resources:
   classes otherwise work the same on both iOS and Android.<br>
   The following list links to relevant parts of the VeggieSeasons
   example:
-    * [Defining a `RestorablePropery` as an instance property]({{site.github}}/flutter/samples/blob/604c82cd7c9c7807ff6c5ca96fbb01d44a4f2c41/veggieseasons/lib/widgets/trivia.dart#L33-L37)
-    * [Registering the properties]({{site.github}}/flutter/samples/blob/604c82cd7c9c7807ff6c5ca96fbb01d44a4f2c41/veggieseasons/lib/widgets/trivia.dart#L49-L54)
-    * [Updating the property values]({{site.github}}/flutter/samples/blob/604c82cd7c9c7807ff6c5ca96fbb01d44a4f2c41/veggieseasons/lib/widgets/trivia.dart#L108-L109)
-    * [Using property values in build]({{site.github}}/flutter/samples/blob/604c82cd7c9c7807ff6c5ca96fbb01d44a4f2c41/veggieseasons/lib/widgets/trivia.dart#L205-L210)<br>
+    * [Defining a `RestorablePropery` as an instance property]({{site.repo.samples}}/blob/604c82cd7c9c7807ff6c5ca96fbb01d44a4f2c41/veggieseasons/lib/widgets/trivia.dart#L33-L37)
+    * [Registering the properties]({{site.repo.samples}}/blob/604c82cd7c9c7807ff6c5ca96fbb01d44a4f2c41/veggieseasons/lib/widgets/trivia.dart#L49-L54)
+    * [Updating the property values]({{site.repo.samples}}/blob/604c82cd7c9c7807ff6c5ca96fbb01d44a4f2c41/veggieseasons/lib/widgets/trivia.dart#L108-L109)
+    * [Using property values in build]({{site.repo.samples}}/blob/604c82cd7c9c7807ff6c5ca96fbb01d44a4f2c41/veggieseasons/lib/widgets/trivia.dart#L205-L210)<br>
 
 * To learn more about short term and long term state,
   check out [Differentiate between ephemeral state
diff --git a/src/platform-integration/android/splash-screen.md b/src/platform-integration/android/splash-screen.md
index 74c339c712..f0326f89f4 100644
--- a/src/platform-integration/android/splash-screen.md
+++ b/src/platform-integration/android/splash-screen.md
@@ -309,6 +309,6 @@ For an example of this, check out the
 [Android Splash Screens]: {{site.android-dev}}/about/versions/12/features/splash-screen
 [launch screen]: {{site.android-dev}}/topic/performance/vitals/launch-time#themed
 [pre-warming a `FlutterEngine`]: {{site.url}}/add-to-app/android/add-flutter-fragment#using-a-pre-warmed-flutterengine
-[Android splash screen sample app]: {{site.github}}/flutter/samples/tree/main/android_splash_screen
+[Android splash screen sample app]: {{site.repo.samples}}/tree/main/android_splash_screen
 [Deprecated Splash Screen API Migration guide]: {{site.url}}/release/breaking-changes/splash-screen-migration
 [Customizing web app initialization guide]: {{site.url}}/platform-integration/web/initialization
diff --git a/src/platform-integration/desktop.md b/src/platform-integration/desktop.md
index b0cdf3a2d3..191d796ed0 100644
--- a/src/platform-integration/desktop.md
+++ b/src/platform-integration/desktop.md
@@ -514,7 +514,7 @@ Flokk [官宣文章][gskinner-flokk-blogpost]，[源代码仓库地址][gskinner
 [图片搜索应用][Photo Search app]
 <br> 使用支持桌面端的插件构建的一个桌面应用案例。
 
-[Photo Search app]: {{site.repo.organization}}/samples/tree/main/desktop_photo_search
+[Photo Search app]: {{site.repo.samples}}/tree/main/desktop_photo_search
 [running web app]: {{site.gallery}}
 [flutter-gallery-repo]: {{site.repo.gallery}}
 [README]: {{site.repo.gallery}}#readme
diff --git a/src/platform-integration/ios/app-extensions.md b/src/platform-integration/ios/app-extensions.md
index ee1340894b..c2e55a0ab0 100644
--- a/src/platform-integration/ios/app-extensions.md
+++ b/src/platform-integration/ios/app-extensions.md
@@ -3,14 +3,27 @@ title: Adding iOS app extensions
 description: Learn how to add app extensions to your Flutter apps
 ---
 
-iOS App extensions allow you to expand functionality
+iOS app extensions allow you to expand functionality
 outside your app. Your app could appear as a home screen widget,
 or you can make portions of your app available within other apps.
 
 To learn more about app extensions, check out
 [Apple's documentation][].
 
+{{site.alert.note}}
+  If you experience a build error when building an
+  iOS app that includes an app extension, be
+  aware that there is an open bug. The workaround
+  involves changing the order of the build process.
+  For more information, check out
+  [Issue #9690][] and [Issue #135056][].
+{{site.alert.end}}
+
+[Issue #9690]:   {{site.github}}/flutter/website/issues/9690
+[Issue #135056]: {{site.github}}/flutter/flutter/issues/135056
+
 ## How do you add an app extension to your Flutter app?
+
 To add an app extension to your Flutter app,
 add the extension point *target* to your Xcode project.
 
@@ -33,35 +46,40 @@ add the extension point *target* to your Xcode project.
    [Apple's documentation][].
 
 To learn how to add a home screen widget to your iOS device,
-check out the [Adding a Home Screen widget to your Flutter App] codelab.
-
-[Adding a Home Screen widget to your Flutter App]: https://codelabs.developers.google.com/flutter-home-screen-widgets#0
+check out the 
+[Adding a Home Screen Widget to your Flutter app][lab]
+codelab.
 
 ## How do Flutter apps interact with App Extensions? 
+
 Flutter apps interact with app extensions using the same
 techniques as UIKit or SwiftUI apps.
 The containing app and the app extension don't communicate directly.
-The containing app might not be running while the device user interacts with the extension.
-The app and your extension can read and write to shared resources or
-use higher-level APIs to communicate with each other.
+The containing app might not be running while the device user
+interacts with the extension.
+The app and your extension can read and write to
+shared resources or use higher-level APIs
+to communicate with each other.
 
 ### Using higher-level APIs
+
 Some extensions have APIs. For example, 
-the [Core Spotlight][] framework indexes your app 
-allowing users to search from Spotlight and Safari. The
-[WidgetKit][] framework can trigger an update of your home screen
-widget.
+the [Core Spotlight][] framework indexes your app,
+allowing users to search from Spotlight and Safari.
+The [WidgetKit][] framework can trigger an update
+of your home screen widget.
 
 To simplify how your app communicates with extensions,
 Flutter plugins wrap these APIs.
 To find plugins that wrap extension APIs,
-check out [Leveraging Apple's System APIs and Frameworks][] or
-search [pub.dev][].
+check out [Leveraging Apple's System APIs and Frameworks][leverage]
+or search [pub.dev][].
 
 ### Sharing resources
-To share resources between your Flutter app and your app extension, put
-the `Runner` app target and the extension target in the same
-[App Group][].
+
+To share resources between your Flutter app
+and your app extension, put the `Runner` app target
+and the extension target in the same [App Group][].
 
 {{site.alert.note}}
   You must be signed in to your Apple Developer account.
@@ -72,37 +90,42 @@ To add a target to an App Group:
 1. Open the target settings in Xcode.
 1. Navigate to the **Signing & Capabilities** tab.
 1. Select **+ Capability** then **App Groups**.
-1. Choose which App Group you want to add the target from one of two options:
+1. Choose which App Group you want to add the target from
+   one of two options:
+
+    {: type="a"}
     1. Select an App Group from the list.
     1. Click **+** to add a new App Group.
 
 {% include docs/app-figure.md
 image="development/platform-integration/app-extensions/xcode-app-groups.png" %}
 
-When two targets belong to the same App Group, they can read and write
-data to the same source. Choose one of the following sources for your data.
+When two targets belong to the same App Group,
+they can read from and write to the same source.
+Choose one of the following sources for your data.
 
-- **Key/value:** Use the [`shared_preference_app_group`][]
+* **Key/value:** Use the [`shared_preference_app_group`][]
   plugin to read or write to `UserDefaults` within the same App Group.
-- **File:** Use the App Group container path from the
+* **File:** Use the App Group container path from the
   [`path_provider`][] plugin to [read and write files][].
-- **Database:** Use the App Group container path from
+* **Database:** Use the App Group container path from
   the [`path_provider`][] plugin to create a database with the
   [`sqflite`][] plugin.
 
 ### Background updates
 
-Background tasks provide a means to update your extension through code
-regardless of the status of your app.
+Background tasks provide a means to update your extension
+through code regardless of the status of your app.
 
-To schedule background work from your Flutter app, use the
-[`workmanager`][] plugin.
+To schedule background work from your Flutter app,
+use the [`workmanager`][] plugin.
 
 ### Deep linking
-You might want to direct users from an app extension to a
-specific page in your Flutter app.
-To have a URL open a specified route in your app, you can use
-[Deep Linking][].
+
+You might want to direct users from an
+app extension to a specific page in your Flutter app.
+To open a specific route in your app,
+you can use [Deep Linking][].
 
 ## Creating app extension UIs with Flutter
 
@@ -110,7 +133,8 @@ Some app extensions display a user interface.
 
 For example, share extensions allow users to conveniently
 share content with other apps,
-such as sharing a picture to create a new post on a social media app.
+such as sharing a picture to create
+a new post on a social media app.
 
 <figure class="site-figure {{include.class}}">
     <div class="site-figure-container">
@@ -119,30 +143,33 @@ such as sharing a picture to create a new post on a social media app.
     </div>
 </figure>
 
-Starting from version 3.16, Flutter supports
-building Flutter UI for app extensions.
-To create the UI for
-an app extension using Flutter, you must use an extension-safe
-`Flutter.xcframework` and embed the `FlutterViewController`
-as described in the following section.
+As of the 3.16 release, you can build
+Flutter UI for an app extension,
+though you must use an extension-safe
+`Flutter.xcframework` and embed the
+`FlutterViewController` as described in
+the following section.
 
 {{site.alert.note}}
   Due to the memory limitations of app extensions,
-  it is only recommended to use Flutter to build app extension UI
-  for extension types that have memory limits larger than 100MB.
-  For example, share extensions which have a 120MB memory limit.
+  use Flutter to build an app extension UI for extension
+  types that have memory limits larger than 100MB.
+  For example, Share extensions have a 120MB memory limit.
 
   In addition, Flutter uses extra memory in debug mode.
-  Therefore, Flutter does not fully support running app extensions in
-  debug mode on physical devices when used to build extension UI.
-  As an alternative, use an iOS simulator to test your extension in debug mode.
+  Therefore, Flutter doesn't fully support running
+  app extensions in debug mode on physical devices
+  when used to build extension UI; it might run out of memory.
+  As an alternative,
+  use an iOS simulator to test your extension in debug mode.
 {{site.alert.end}}
 
 1. Locate the extension-safe `Flutter.xcframework` file,
    at `<path_to_flutter_sdk>/bin/cache/artifacts/engine/ios/extension_safe/Flutter.xcframework`.
    
-    * If you would like to build for release or profile mode, find the
-      framework file under the `ios-profile` or `ios-release` folder.
+    * To build for release or profile modes,
+      find the framework file under the
+      `ios-release` or `ios-profile` folder, respectively.
 
 1. Drag and drop the `Flutter.xcframework` file into your
    share extension's frameworks and libraries list.
@@ -155,9 +182,10 @@ as described in the following section.
        </div>
    </figure>
 
-1. Open the Flutter app project settings in Xcode to share build
-   configurations. 
+1. Open the Flutter app project settings in Xcode
+   to share build configurations. 
 
+   {: type="a"}
    1. Navigate to the **Info** tab.
    1. Expand the **Configurations** group. 
    1. Expand the **Debug**, **Profile**, and **Release** entries.
@@ -172,16 +200,18 @@ as described in the following section.
         </div>
     </figure>
 
-1. (Optional) Replace any storyboard files with an extension class if needed.
-   
+1. (Optional) Replace any storyboard files with an extension class, if needed.
+
+    {: type="a"}
     1. In the `Info.plist` file,
        delete the **NSExtensionMainStoryboard** property.
     1. Add the **NSExtensionPrincipalClass** property.
     1. Set the value for this property to the entry point of the extension.
-       For example, for share extensions, it is usually
+       For example, for share extensions, it's usually
        `<YourShareExtensionTargetName>.ShareViewController`.
        If you use Objective-C to implement the extension,
-       you should omit the `<YourShareExtensionTargetName>.` portion.<br>
+       you should omit the `<YourShareExtensionTargetName>.`
+       portion.<br>
 
     <figure class="site-figure {{include.class}}">
         <div class="site-figure-container">
@@ -190,7 +220,6 @@ as described in the following section.
         </div>
     </figure>
 
-
 1. Embed the `FlutterViewController` as described in
    [Adding a Flutter Screen][]. For example, you can display a
    specific route in your Flutter app within a share extension.
@@ -228,9 +257,9 @@ Revisit these docs after future Xcode releases to see if they are fixed.
 
 1. Build and run the main application target.
 1. After the app is launched on the simulator,
-   press <kbd>Cmd</kbd> + <kbd>Shift</kbd> + <kbd>H</kbd> to minimize the app,
-   which switches to the home screen.
-1. Launch an app that supports Share Extension,
+   press <kbd>Cmd</kbd> + <kbd>Shift</kbd> + <kbd>H</kbd>
+   to minimize the app, which switches to the home screen.
+1. Launch an app that supports the share extension,
    such as the Photos app.
 1. Select a photo, tap the share button, then tap
    on the share extension icon of your app.
@@ -241,34 +270,32 @@ You can use the following procedure or the
 [Testing on simulators](#test-on-a-simulator) instructions
 to test on physical devices.
 
-1. Launch the Share Extension target.
+1. Launch the share extension target.
 1. In the popup window that says “Choose an app to run”,
-   select an app that can be used to test Share Extension,
+   select an app that can be used to test share extension,
    such as the Photos app.
 1. Select a photo, tap the share button,
-   then tap on the Share Extension icon of your app.
+   then tap on the share extension icon of your app.
 
-{% comment %}
 ## Tutorials
 
-For step-by-step instruction for using app extensions with your
-Flutter iOS app, check out the
-[Adding Home Screen Widgets and Live Activities to your Flutter app][] codelab.
-{% endcomment %}
+For step-by-step instruction for using app
+extensions with your Flutter iOS app, check out the
+[Adding a Home Screen Widget to your Flutter app][lab]
+codelab.
 
-[Apple's documentation]: https://developer.apple.com/app-extensions/
-[Core Spotlight]: https://developer.apple.com/documentation/corespotlight
-[WidgetKit]: https://developer.apple.com/documentation/widgetkit
-[Leveraging Apple's System APIs and Frameworks]: {{site.url}}/platform-integration/ios/apple-frameworks
-[pub.dev]: {{site.pub-pkg}}
-[App Group]: https://developer.apple.com/documentation/xcode/configuring-app-groups
 [Adding a Flutter Screen]: {{site.url}}/add-to-app/ios/add-flutter-screen?tab=vc-uikit-swift-tab#alternatively---create-a-flutterviewcontroller-with-an-implicit-flutterengine
-[`shared_preference_app_group`]: {{site.pub-pkg}}/shared_preference_app_group
+[App Group]: {{site.apple-dev}}/documentation/xcode/configuring-app-groups
+[Apple's documentation]: {{site.apple-dev}}/app-extensions/
 [Compiling the Engine]: https://github.com/flutter/flutter/wiki/Compiling-the-engine
+[Core Spotlight]: {{site.apple-dev}}/documentation/corespotlight
+[Deep Linking]:{{site.url}}/ui/navigation/deep-linking
+[lab]: {{site.codelabs}}/flutter-home-screen-widgets
+[leverage]: {{site.url}}/platform-integration/ios/apple-frameworks
 [`path_provider`]: {{site.pub-pkg}}/path_provider
+[pub.dev]: {{site.pub-pkg}}
+[read and write files]: {{site.url}}/cookbook/persistence/reading-writing-files
+[`shared_preference_app_group`]: {{site.pub-pkg}}/shared_preference_app_group
 [`sqflite`]: {{site.pub-pkg}}/sqflite
+[WidgetKit]: {{site.apple-dev}}/documentation/widgetkit
 [`workmanager`]: {{site.pub-pkg}}/workmanager
-[read and write files]: {{site.url}}/cookbook/persistence/reading-writing-files
-[example from the community on GitHub]: {{site.github}}/flutter/engine/pull/39941
-[Deep Linking]:{{site.url}}/ui/navigation/deep-linking
-[Adding Home Screen Widgets to your Flutter app]: {{site.codelabs}}/flutter-home-screen-widgets#0
diff --git a/src/platform-integration/ios/apple-frameworks.md b/src/platform-integration/ios/apple-frameworks.md
index abc06a0187..266960a983 100644
--- a/src/platform-integration/ios/apple-frameworks.md
+++ b/src/platform-integration/ios/apple-frameworks.md
@@ -348,7 +348,7 @@ Configure, update and communicate with Widgets
 [`firebase_messaging`]: {{site.pub-pkg}}/firebase_messaging
 [`google_maps_flutter`]: {{site.pub-pkg}}/google_maps_flutter
 [`google_ml_kit`]: {{site.pub-pkg}}/google_ml_kit
-[Use a custom TensorFlow Lite model with Flutter]: https://firebase.google.com/docs/ml/flutter/use-custom-models
+[Use a custom TensorFlow Lite model with Flutter]: {{site.firebase}}/docs/ml/flutter/use-custom-models
 [`speech_to_text`]: {{site.pub-pkg}}/speech_to_text
 [`ar_flutter_plugin`]: {{site.pub-pkg}}/ar_flutter_plugin
 [`weather`]: {{site.pub-pkg}}/weather
diff --git a/src/platform-integration/ios/c-interop.md b/src/platform-integration/ios/c-interop.md
index 0420638e15..75fa2c29ea 100644
--- a/src/platform-integration/ios/c-interop.md
+++ b/src/platform-integration/ios/c-interop.md
@@ -163,7 +163,7 @@ The native code is invoked from dart in `lib/native_add_bindings_generated.dart`
 
 原生代码会从 `lib/native_add_bindings_generated.dart` 被 Dart 调用。
 
-The bindings are generated with [package:ffigen](https://pub.dev/packages/ffigen).
+The bindings are generated with [package:ffigen]({{site.pub-pkg}}/ffigen).
 
 代码由 [package:ffigen](https://pub.flutter-io.cn/packages/ffigen) 生成。
 
diff --git a/src/platform-integration/ios/ios-app-clip.md b/src/platform-integration/ios/ios-app-clip.md
index 3d21c17def..f7bd6af073 100644
--- a/src/platform-integration/ios/ios-app-clip.md
+++ b/src/platform-integration/ios/ios-app-clip.md
@@ -39,7 +39,7 @@ To see a working sample, see the [App Clip sample][] on GitHub.
 
 要查看完整可用的示例，请参阅 GitHub 上的 [App Clip 示例][App Clip sample]。
 
-[App Clip sample]: {{site.github}}/flutter/samples/tree/master/ios_app_clip
+[App Clip sample]: {{site.repo.samples}}/tree/master/ios_app_clip
 
 ## Step 1 - Open project
 
diff --git a/src/platform-integration/ios/restore-state-ios.md b/src/platform-integration/ios/restore-state-ios.md
index 76ae47f5a3..d7fa51fc57 100644
--- a/src/platform-integration/ios/restore-state-ios.md
+++ b/src/platform-integration/ios/restore-state-ios.md
@@ -21,5 +21,5 @@ and the [VeggieSeasons][] code sample.
 [a bit of extra setup]: {{site.api}}/flutter/services/RestorationManager-class.html#state-restoration-on-ios
 [`RestorationManager`]: {{site.api}}/flutter/services/RestorationManager-class.html
 [State restoration on Android]: {{site.url}}/platform-integration/android/restore-state-android
-[VeggieSeasons]: {{site.github}}/flutter/samples/tree/main/veggieseasons
+[VeggieSeasons]: {{site.repo.samples}}/tree/main/veggieseasons
 
diff --git a/src/platform-integration/linux/building.md b/src/platform-integration/linux/building.md
index c199a01a51..d526b662b9 100644
--- a/src/platform-integration/linux/building.md
+++ b/src/platform-integration/linux/building.md
@@ -68,7 +68,7 @@ the system libraries it depends upon as follows:
 
 ```terminal
 $ flutter build linux --release
-$ ldd build/linux/release/bundle/linux_desktop_test
+$ ldd build/linux/x64/release/bundle/linux_desktop_test
 ```
 
 To wrap up this application for distribution
diff --git a/src/platform-integration/platform-adaptations.md b/src/platform-integration/platform-adaptations.md
index e61ea916c6..b9e7307b7e 100644
--- a/src/platform-integration/platform-adaptations.md
+++ b/src/platform-integration/platform-adaptations.md
@@ -1159,27 +1159,27 @@ You can leave feedback or ask questions in the discussion.
 [overscroll glow indicator]: {{site.api}}/flutter/widgets/GlowingOverscrollIndicator-class.html
 [overscrolls]: {{site.api}}/flutter/widgets/BouncingScrollPhysics-class.html
 [`PageRoute.fullscreenDialog`]: {{site.api}}/flutter/widgets/PageRoute-class.html
-[platform_design code samples]: {{site.github}}/flutter/samples/tree/main/platform_design
+[platform_design code samples]: {{site.repo.samples}}/tree/main/platform_design
 [`Icons.adaptive`]: {{site.api}}/flutter/material/PlatformAdaptiveIcons-class.html
 [slides and clip-reveals up]: {{site.api}}/flutter/material/OpenUpwardsPageTransitionsBuilder-class.html
 [slides up and fades in]: {{site.api}}/flutter/material/FadeUpwardsPageTransitionsBuilder-class.html
 [`startActivity()`]: {{site.android-dev}}/reference/android/app/Activity.html#startActivity(android.content.Intent
 [`WidgetsApp`]: {{site.api}}/flutter/widgets/WidgetsApp-class.html
 [issue #8427]: {{site.repo.this}}/issues/8427
-[m3-dialog]: https://m3.material.io/components/dialogs/overview
-[hig-alert]: https://developer.apple.com/design/human-interface-guidelines/components/presentation/alerts/
+[m3-dialog]: {{site.material}}/components/dialogs/overview
+[hig-alert]: {{site.apple-dev}}/design/human-interface-guidelines/components/presentation/alerts/
 [alert-post]: {{site.repo.uxr}}/discussions/92
 [appbar-post]: {{site.repo.uxr}}/discussions/93
-[mat-appbar]: https://m3.material.io/components/top-app-bar/overview
-[hig-appbar]: https://developer.apple.com/design/human-interface-guidelines/components/navigation-and-search/navigation-bars/
+[mat-appbar]: {{site.material}}/components/top-app-bar/overview
+[hig-appbar]: {{site.apple-dev}}/design/human-interface-guidelines/components/navigation-and-search/navigation-bars/
 [`Checkbox.adaptive()`]: {{site.api}}/flutter/material/Checkbox/Checkbox.adaptive.html
 [`Radio.adaptive()`]: {{site.api}}/flutter/material/Radio/Radio.adaptive.html
 [`Switch.adaptive()`]: {{site.api}}/flutter/material/Switch/Switch.adaptive.html
 [`Slider.adaptive()`]: {{site.api}}/flutter/material/Slider/Slider.adaptive.html
 [`CircularProgressIndicator.adaptive()`]: {{site.api}}/flutter/material/CircularProgressIndicator/CircularProgressIndicator.adaptive.html
 [UI Component section]: {{site.api}}/platform-integration/platform-adaptations/#ui-components
-[mat-navbar]: https://m3.material.io/components/navigation-bar/overview
-[hig-tabbar]: https://developer.apple.com/design/human-interface-guidelines/components/navigation-and-search/tab-bars/
+[mat-navbar]: {{site.material}}/components/navigation-bar/overview
+[hig-tabbar]: {{site.apple-dev}}/design/human-interface-guidelines/components/navigation-and-search/tab-bars/
 [text-field-post]: {{site.repo.uxr}}/discussions/95 
-[m3-text-field]: https://m3.material.io/components/text-fields/overview
-[hig-text-field]: https://developer.apple.com/design/human-interface-guidelines/text-fields
+[m3-text-field]: {{site.material}}/components/text-fields/overview
+[hig-text-field]: {{site.apple-dev}}/design/human-interface-guidelines/text-fields
diff --git a/src/platform-integration/web/building.md b/src/platform-integration/web/building.md
index dbc2b2d1d2..e3376951f4 100644
--- a/src/platform-integration/web/building.md
+++ b/src/platform-integration/web/building.md
@@ -66,7 +66,7 @@ you need the following software:
   以及在 IDE 中重载你的 Web 应用。
   查看 [编辑工具设定][setting up an editor] 了解更多。
 
-[Android Studio]: https://developer.android.com/studio
+[Android Studio]: {{site.android-dev}}/studio
 [IntelliJ IDEA]: https://www.jetbrains.com/idea/
 [Visual Studio Code]: https://code.visualstudio.com/
 
diff --git a/src/platform-integration/web/index.md b/src/platform-integration/web/index.md
index 2789be205d..947eaaff6c 100644
--- a/src/platform-integration/web/index.md
+++ b/src/platform-integration/web/index.md
@@ -7,6 +7,9 @@ tags: Web平台
 keywords: Flutter web, web跨端
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 Flutter's web support delivers the same experiences on the web as on mobile.
 Building on the portability of Dart, the power of the web platform and the
 flexibility of the Flutter framework, you can now build apps for iOS, Android,
@@ -27,7 +30,7 @@ Flutter 的 Web 端支持在 Web 和移动设备上提供相同的体验。
 Adding web support to Flutter involved implementing Flutter's
 core drawing layer on top of standard browser APIs, in addition
 to compiling Dart to JavaScript, instead of the ARM machine code that
-is used for mobile applications. Using a combination of DOM, Canvas, 
+is used for mobile applications. Using a combination of DOM, Canvas,
 and WebAssembly, Flutter can provide a portable, high-quality,
 and performant user experience across modern browsers.
 We implemented the core drawing layer completely in Dart
@@ -61,7 +64,7 @@ following scenarios:
 : Web support for Flutter provides a browser-based delivery model for existing
   Flutter mobile apps.
 
-Not every HTML scenario is ideally suited for Flutter at this time. 
+Not every HTML scenario is ideally suited for Flutter at this time.
 For example, text-rich, flow-based, static content such as blog articles
 benefit from the document-centric model that the web is built around,
 rather than the app-centric services that a UI framework like Flutter
@@ -71,9 +74,10 @@ experiences into these websites.
 For a glimpse into how to migrate your mobile app to web, see
 the following video:
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=246950294&bvid=BV1Jv411h7x6&cid=305745348&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=246950294&bvid=BV1Jv411h7x6&cid=305745348&page=1&autoplay=false" title="了解如何使用 Flutter 从移动应用转向 Web 应用" {{bili-set}}></iframe>
 
 <a id="web"></a>
+
 ## Resources
 
 ## 关于 web 支持的说明
@@ -89,7 +93,7 @@ The following resources can help you get started:
   要向现有应用添加Web支持，或创建一个包含 Web 支持的新应用，
   请参阅 [使用 Flutter 构建 Web 应用][Building a web application with Flutter]。
   
-* To learn about Flutter's different web renderers (HTML and CanvasKit), see 
+* To learn about Flutter's different web renderers (HTML and CanvasKit), see
   [Web renderers][]
 
   了解更多关于 Flutter web 渲染器 (HTML and CanvasKit) 的不同之处，
@@ -131,7 +135,6 @@ The following resources can help you get started:
 
 ---
 
-
 [Building a web application with Flutter]: {{site.url}}/platform-integration/web/building
 [Creating responsive apps]: {{site.url}}/ui/layout/responsive/adaptive-responsive
 [Discord]: https://discordapp.com/invite/yeZ6s7k
diff --git a/src/platform-integration/web/initialization.md b/src/platform-integration/web/initialization.md
index 97250ba167..4e491ea349 100644
--- a/src/platform-integration/web/initialization.md
+++ b/src/platform-integration/web/initialization.md
@@ -215,7 +215,7 @@ You can add any of the following optional parameters:
 
 </div>
 
-[jsflutterconfig-source]: {{site.github}}/flutter/engine/blob/main/lib/web_ui/lib/src/engine/configuration.dart#L247-L259
+[jsflutterconfig-source]: {{site.repo.engine}}/blob/main/lib/web_ui/lib/src/engine/configuration.dart#L247-L259
 [web-renderers]: {{site.url}}/platform-integration/web/renderers
 
 {{site.alert.note}}
@@ -271,7 +271,7 @@ file of the web engine.
 请查阅 web 引擎 [`configuration.dart`][config-dart] 文件中，
 文档的 **"Runtime parameters"** 部分。
 
-[config-dart]: {{site.github}}/flutter/engine/blob/main/lib/web_ui/lib/src/engine/configuration.dart#L174
+[config-dart]: {{site.repo.engine}}/blob/main/lib/web_ui/lib/src/engine/configuration.dart#L174
 
 #### Skipping this step
 
@@ -345,7 +345,7 @@ see the [initialization code][gallery-init] for the Flutter Gallery.
 更多关于实用的 CSS 动画示例，
 请查阅 Flutter Gallery 的 [初始化代码][gallery-init]。
 
-[gallery-init]: {{site.github}}/flutter/gallery/blob/master/web/index.html
+[gallery-init]: {{site.repo.gallery}}/blob/master/web/index.html
 
 ## Upgrading an older project
 
diff --git a/src/platform-integration/web/wasm.md b/src/platform-integration/web/wasm.md
index be71915e64..ec73df7bd0 100644
--- a/src/platform-integration/web/wasm.md
+++ b/src/platform-integration/web/wasm.md
@@ -100,7 +100,7 @@ package root.
 #### Serve the output locally with an HTTP server
 
 If you don't have a local HTTP server installed, you can use the
-[`dhttpd` package](https://pub.dev/packages/dhttpd):
+[`dhttpd` package]({{site.pub-pkg}}/dhttpd):
 
 ```terminal
 flutter pub global activate dhttpd
diff --git a/src/platform-integration/windows/building.md b/src/platform-integration/windows/building.md
index 084ecb4a6d..5074a7d13e 100644
--- a/src/platform-integration/windows/building.md
+++ b/src/platform-integration/windows/building.md
@@ -218,7 +218,7 @@ see the [Desktop Photo Search][] sample.
 
 [MSIX]: https://docs.microsoft.com/en-us/windows/msix/overview
 [msix package]: {{site.pub}}/packages/msix
-[Desktop Photo Search]: {{site.github}}/flutter/samples/tree/main/desktop_photo_search
+[Desktop Photo Search]: {{site.repo.samples}}/tree/main/desktop_photo_search
 
 #### Create a self-signed .pfx certificate for local testing
 
diff --git a/src/platform-integration/windows/extern_win.md b/src/platform-integration/windows/extern_win.md
index 9cf4eae7bb..32d7f21ce1 100644
--- a/src/platform-integration/windows/extern_win.md
+++ b/src/platform-integration/windows/extern_win.md
@@ -38,4 +38,4 @@ LRESULT Window::Messagehandler(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam
 ```
 
 [documentation of this breaking change.]: {{site.url}}/release/breaking-changes/win_lifecycle_process_function
-[WidgetsBindingObserver.didChangeAppLifecycle]: https://api.flutter.dev/flutter/widgets/WidgetsBindingObserver/didChangeAppLifecycleState.html
+[WidgetsBindingObserver.didChangeAppLifecycle]: {{site.api}}/flutter/widgets/WidgetsBindingObserver/didChangeAppLifecycleState.html
diff --git a/src/posts/Flutter-io19.md b/src/posts/Flutter-io19.md
index 85b324c9ea..9e5082474b 100644
--- a/src/posts/Flutter-io19.md
+++ b/src/posts/Flutter-io19.md
@@ -3,6 +3,8 @@ title: Flutter 1.5 正式发布：适用于移动、Web、嵌入式和桌面平
 toc: true
 ---
 
+{% include docs/bili_shims.liquid %}
+
 **作者: Flutter 团队**
 
 I/O 期间我们迎来 [Flutter 框架](https://flutter.dev/) 的一个重要里程碑，因为我们的开发重点从移动平台扩展到了更广泛的设备和机型。在 I/O 大会上，我们发布了 [Web 版 Flutter 的首个技术预览版](https://flutter.dev/web)，宣布 Flutter 将为包括 Google Home Hub 在内的 Google Smart Display 平台提供技术支持，并迈出利用 Chrome 操作系统支持桌面级应用的第一步。
@@ -84,6 +86,6 @@ Smart Display 操作系统或许是 Flutter 目前已运行的最常见嵌入式
 
 我们在此宣布获胜者，您可前往 flutter.dev/create 查看获胜名单。祝贺总冠军 Zebiao Hu，其将荣获价值超过 1 万美元的全加载式 iMac Pro！
 
-<iframe src="//player.bilibili.com/player.html?aid=52416421&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe>
+<iframe src="{{bili-embed}}?aid=52416421&page=1&autoplay=false" {{bili-set}}></iframe>
 
 Flutter 不再只是一个移动框架，更是一个多平台框架，可帮助您触及任何地方的用户。我们迫不及待地看到您利用 Flutter 在 Web、桌面、移动及其他平台上构建的内容！
diff --git a/src/posts/announcing-dart-2-12.md b/src/posts/announcing-dart-2-12.md
index 8bbd93efe1..8992bbca33 100644
--- a/src/posts/announcing-dart-2-12.md
+++ b/src/posts/announcing-dart-2-12.md
@@ -3,13 +3,15 @@ title: Dart 2.12 现已发布
 toc: true
 ---
 
+{% include docs/bili_shims.liquid %}
+
 ![](https://devrel.andfun.cn/devrel/posts/2021/03/6b1a0818de0a5.png)
 
 *作者 / Michael Thomsen*
 
 Dart 2.12 现已发布，其中包含 [健全的空安全](https://dart.cn/null-safety) 和 [Dart FFI](https://dart.cn/guides/libraries/c-interop) 的稳定版。空安全是我们最新主打的一项生产力强化功能，意在帮助您规避空值错误，以前这种错误通常很难被发现，您可以观看下面这支视频了解详情。FFI 则是一种互操作机制，支持调用以 C 语言编写的既有代码，例如调用 Windows [Win32 API](https://pub.flutter-io.cn/packages/win32)。欢迎大家即刻开始使用 Dart 2.12。
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=415467484&bvid=BV1GV411Y7sW&cid=262014735&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=415467484&bvid=BV1GV411Y7sW&cid=262014735&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 ## **Dart 平台的独特功能**
 
diff --git a/src/posts/announcing-flutter-1-12.md b/src/posts/announcing-flutter-1-12.md
index 5f61c6e854..0bf7eff583 100644
--- a/src/posts/announcing-flutter-1-12.md
+++ b/src/posts/announcing-flutter-1-12.md
@@ -3,6 +3,8 @@ title: Flutter 1.12 正式发布，为这一年画上圆满的句号！
 description: Flutter 1.12 正式发布，包括多项性能改进等。
 ---
 
+{% include docs/bili_shims.liquid %}
+
 *作者 / Chris Sells，Flutter 开发者体验产品经理*
 
 我们很高兴正式推出 Flutter 最新稳定版: Flutter 1.12。自从去年 12 月发布 Flutter 1.0 以来，这已经是我们发布的第 5 个稳定版本了。多么精彩的一年！我们一共解决了 5,303 个报错，合并了来自 484 位贡献者的 5,950 份 pull request。我们在 Flutter 引擎和框架中添加了对 Android App Bundles、iOS 13 和 web 的支持，实现了鼠标与键盘事件，发布了应用内购插件，融合了[多项](https://github.com/flutter/engine/pull/12385)[重要](https://github.com/flutter/flutter/pull/36482)的[性能](https://github.com/flutter/engine/pull/10182)[改进](https://github.com/flutter/flutter/pull/37275)，还新增了 24 种语言支持和多个 widget。
@@ -164,7 +166,7 @@ Golden 图像指的是一个主图像文件，它是 widget、state、应用或
 
 拥有这样一群了不起的开发者，真是 Flutter 社区的一大幸事。您们让全体 Flutter 团队成员深感骄傲！
 
-<iframe src="//player.bilibili.com/player.html?aid=86761188&cid=148257761&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width="560" height="315"> </iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=86761188&cid=148257761&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 **Flutter Favorite 代码包**
 
diff --git a/src/posts/announcing-flutter-1-7-9.md b/src/posts/announcing-flutter-1-7-9.md
index 7464f13a7f..c05f513618 100644
--- a/src/posts/announcing-flutter-1-7-9.md
+++ b/src/posts/announcing-flutter-1-7-9.md
@@ -3,6 +3,8 @@ title: Flutter 1.7 版正式发布
 toc: true
 ---
 
+{% include docs/bili_shims.liquid %}
+
 文 / Tim Sneath，谷歌 Dart & Flutter 产品组产品经理
 
 今天，我们非常高兴地向大家宣布又一个正式版本的发布 —— Flutter 1.7，这是继上次 I/O 时众多重要功能发布以来的一次小更新。Flutter 1.7 包含了对 AndroidX 的支持，满足了 Play 商店近期对应用提出的要求，包含了一些新的和增强过的组件，修复了开发者们提出的 bug 等。
@@ -80,7 +82,7 @@ RangeSlider widget 支持连续或者分散的效果
 
 之前我们提到过 [Reflectly](https://www.forbes.com/sites/heatherfarmbrough/2018/05/01/reflectly-wants-to-be-an-adidas-of-the-mind/#572291294204)，它是一个丹麦的公司，他们在 iOS 和 Android 平台开发了非常有吸引力的应用程序。他们的应用程序被美国 iPhone 应用商店评为当日最佳应用。这也证明了 Flutter 的真正潜力远远超过实现体验流畅的应用（同时可以帮助开发者获得成功）。
 
-<iframe src="//player.bilibili.com/player.html?aid=56686514&cid=99031924&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width="560" height="315"> </iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=56686514&cid=99031924&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 在柏林的  [WeAreDevelopers](https://events.wearedevelopers.com/) 大会中，[BMW 发布了他们基于 Flutter 的应用](https://youtu.be/80pRyn7fZRk?t=1234)，目前已经在开发中。下面这段描述来自 Guy Duncan，他是 BMW 集团互联公司的 CTO：
 
diff --git a/src/posts/announcing-the-flutter-casual-games-toolkit.md b/src/posts/announcing-the-flutter-casual-games-toolkit.md
index 865a805c11..729c330297 100644
--- a/src/posts/announcing-the-flutter-casual-games-toolkit.md
+++ b/src/posts/announcing-the-flutter-casual-games-toolkit.md
@@ -7,6 +7,8 @@ image:
     path: https://devrel.andfun.cn/devrel/posts/2022/05/dSsVED.png
 ---
 
+{% include docs/bili_shims.liquid %}
+
 ![](https://devrel.andfun.cn/devrel/posts/2022/05/dSsVED.png)
 
 *作者 / Zoey Fan, Product Manager for Flutter, Google*
@@ -36,7 +38,7 @@ image:
 
 ## **视频教程**
 
-如果想要上手开发游戏，请查看我们准备的关于如何使用游戏模板的 [视频教程](https://www.bilibili.com/video/BV12Y4y1z7m9/ "视频教程：使用 Flutter 开发游戏")。它为您提供了创建一个 [井字棋游戏](https://github.com/filiph/tictactoe "井字棋游戏的 GitHub 开源仓库地址") (您也可从 [iOS](https://apps.apple.com/us/app/tic-tac-toe-puzzle-game/id1611729977 "井字棋游戏 iOS 版下载地址")/[Android](https://play.google.com/store/apps/details?id=dev.flutter.tictactoe "井字棋游戏 Android 版下载地址") 应用商店下载这个游戏) 的逐步教学。如果您想要了解 Filip 在开发这款游戏时经历的所有细节，欢迎阅读他的 [游戏开发日志](https://files.flutter-io.cn/posts/flutter-cn/2022/announcing-the-flutter-casual-games-toolkit/flutter-game-sample-devlog/ "Filip 的游戏开发日志")。
+如果想要上手开发游戏，请查看我们准备的关于如何使用游戏模板的 [视频教程]({{bili-video}}/BV12Y4y1z7m9/ "视频教程：使用 Flutter 开发游戏")。它为您提供了创建一个 [井字棋游戏](https://github.com/filiph/tictactoe "井字棋游戏的 GitHub 开源仓库地址") (您也可从 [iOS](https://apps.apple.com/us/app/tic-tac-toe-puzzle-game/id1611729977 "井字棋游戏 iOS 版下载地址")/[Android](https://play.google.com/store/apps/details?id=dev.flutter.tictactoe "井字棋游戏 Android 版下载地址") 应用商店下载这个游戏) 的逐步教学。如果您想要了解 Filip 在开发这款游戏时经历的所有细节，欢迎阅读他的 [游戏开发日志](https://files.flutter-io.cn/posts/flutter-cn/2022/announcing-the-flutter-casual-games-toolkit/flutter-game-sample-devlog/ "Filip 的游戏开发日志")。
 
 ## 预集成的服务
 
diff --git a/src/posts/dev-story-beike-use-flutter-service-300-million-users.md b/src/posts/dev-story-beike-use-flutter-service-300-million-users.md
index a7fe23ac64..21d3b0cb46 100644
--- a/src/posts/dev-story-beike-use-flutter-service-300-million-users.md
+++ b/src/posts/dev-story-beike-use-flutter-service-300-million-users.md
@@ -3,7 +3,9 @@ title: 贝壳找房携手 Flutter，为三亿家庭提供更好的居住服务 
 toc: true
 ---
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=374785860&bvid=BV1oZ4y1w7xu&cid=314283572&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+{% include docs/bili_shims.liquid %}
+
+<iframe width="560" height="315" src="{{bili-embed}}?aid=374785860&bvid=BV1oZ4y1w7xu&cid=314283572&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 贝壳找房是科技驱动的新居住服务平台，致力于在二手房、新房、租房以及装修等居住领域为三亿家庭提供全方位的品质居住服务。如此庞大的用户群体，自然也有着十分多样和复杂的使用场景和需求。以往使用原生开发模式时没有碰到过的问题，也在业务迅速增长后逐渐暴露出来。
 
diff --git a/src/posts/flutter-bytedance-dev-story.md b/src/posts/flutter-bytedance-dev-story.md
index 8c6494e110..c792202327 100644
--- a/src/posts/flutter-bytedance-dev-story.md
+++ b/src/posts/flutter-bytedance-dev-story.md
@@ -7,9 +7,11 @@ image:
     path: https://devrel.andfun.cn/devrel/posts/2022/05/3o1bOf.png
 ---
 
+{% include docs/bili_shims.liquid %}
+
 字节跳动旗下运营着一系列成功的用户产品、企业应用以及服务，覆盖信息、教育、娱乐等不同领域。随着产品阵容的不断发展，传统的原生双平台开发已经难以满足团队更高效、更灵活、更精美，以及更多样的产品研发需求。Google 首次发布 Flutter 的时候，团队就果断决定用手上的 iOS 和 Android 应用来测试其跨平台开发能力，而 Flutter 也用不逊于原生框架的性能表现和极高的生产力迅速征服了团队成员们的心。
 
-<iframe src="//player.bilibili.com/player.html?aid=596724784&bvid=BV1xB4y197Tc&cid=722160670&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width="690" height="480"> </iframe>
+<iframe width="690" height="480" src="{{bili-embed}}?aid=596724784&bvid=BV1xB4y197Tc&cid=722160670&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 
 > Flutter 拥有令人难以置信的超高效率，与原生双端开发相比，Flutter 为我们的团队节省了大约 1/3 的开发时间。
diff --git a/src/posts/flutter-engage-china-developers-qa-part-2.md b/src/posts/flutter-engage-china-developers-qa-part-2.md
index 1f8bdfb127..48b238a33a 100644
--- a/src/posts/flutter-engage-china-developers-qa-part-2.md
+++ b/src/posts/flutter-engage-china-developers-qa-part-2.md
@@ -3,6 +3,8 @@ title: Flutter Engage China 开发者常见问题解答 — 下篇
 toc: true
 ---
 
+{% include docs/bili_shims.liquid %}
+
 ![](https://devrel.andfun.cn/devrel/posts/2021/04/14dcfcd1d2a09.jpg)
 
 再次感谢大家对 [Flutter Engage China 活动](https://flutter.cn/posts/flutter-engage-china-event-recap) 的关注和积极参与！我们在活动前后收到了很多来自开发者的反馈和问题，Flutter 团队和演讲嘉宾在直播 Q&A 环节中也针对部分问题在第一时间给出回复。现在我们将一些开发者关心的问题和回复整理出来分享给大家，希望对您有所帮助。由于问题数量较多，我们分为上下两期发布，上期的内容已经发布，欢迎大家 [前往回顾](https://flutter.cn/posts/flutter-engage-china-developers-qa-part-1)。您也可以观看 Flutter Engage China 视频回顾精彩内容:
@@ -50,7 +52,7 @@ toc: true
 
 如果前两步都没有发现问题的话，可以使用我分享的分帧渲染的思路，也可以减少 UI 和 Raster 线程的绘制耗时。
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=247451014&bvid=BV1wv411h7Ni&cid=318242333&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=247451014&bvid=BV1wv411h7Ni&cid=318242333&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 回到引擎层面上，UC 这边做的一些优化也会以 PR 的形式回馈到社区，大家可以关注我们的进展。
 
diff --git a/src/posts/flutter-engage-china-event-recap.md b/src/posts/flutter-engage-china-event-recap.md
index 5f2f6ed5cb..ffd44d90e9 100644
--- a/src/posts/flutter-engage-china-event-recap.md
+++ b/src/posts/flutter-engage-china-event-recap.md
@@ -3,6 +3,8 @@ title: 精彩回顾 — Flutter Engage China 视频合集
 toc: true
 ---
 
+{% include docs/bili_shims.liquid %}
+
 ![](https://devrel.andfun.cn/devrel/posts/2021/04/fada6502a2c26.png)
 
 在上周的 Flutter Engage China 活动中，Google Flutter 团队和来自国内的开发者们共同探讨和交流 Flutter 的最新更新、实践和未来的发展。虽然只能通过线上交流，但是在活动中嘉宾们的精彩分享和讨论也吸引了众多 Flutter 开发者互动交流，畅谈创新和合作。为了帮助更多开发者们更顺利地进行开发工作，我们将公开活动中嘉宾们分享的内容，并带您回顾精彩亮点，希望能对您有所帮助。
@@ -11,37 +13,37 @@ toc: true
 
 ### **Flutter 2 更新介绍**
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=799947271&bvid=BV1ky4y1b7Uw&cid=318228906&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=799947271&bvid=BV1ky4y1b7Uw&cid=318228906&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 [Flutter 2](https://flutter.cn/posts/announcing-flutter-2) 的发布带来了许多振奋人心的内容。视频中，Google Flutter 团队的产品经理樊舟颖 (Zoey) 和我们一起回顾了发布的重点更新，包括 Flutter 2 和 Dart 2.12 中的新增功能，以及 Flutter 开发者是如何使用 Flutter 的。
 
 ### **使用多个轻型引擎**
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=929917417&bvid=BV1PK4y1m7Xq&cid=318238224&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=929917417&bvid=BV1PK4y1m7Xq&cid=318238224&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 Google Flutter 移动端团队负责人于潇介绍了如何使用 Flutter 2 里的新 API 来创造多个实例的 Flutter 引擎。使用多个 Flutter 引擎可以帮助使用混合栈的 Flutter 代码保持封装性。也可以用来实现低内存消耗的多卡片 Flutter 界面。
 
 ### **解析混合集成 PlatformViews**
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=289929869&bvid=BV1of4y1x7yP&cid=318240613&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=289929869&bvid=BV1of4y1x7yP&cid=318240613&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 混合集成 PlatformViews 帮助了 Flutter 实现嵌入 Android 和 iOS UI。很多非常流行的 Plugins 都使用了混合集成 PlatformViews，比如 google_maps_flutter, webview_flutter，以及最近刚进入测试阶段的 google_mobile_ads。Google Flutter 团队的软件工程师杨天航 (Chris) 在视频中介绍了解析混合集成 PlatformViews 在引擎层的实现方法。请点击下方视频链接了解更多详细信息。
 
 ### **UC Flutter 基础建设深度优化**
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=247451014&bvid=BV1wv411h7Ni&cid=318242333&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=247451014&bvid=BV1wv411h7Ni&cid=318242333&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 随着阿里巴巴集团的 Flutter 应用体量越来越大，业务面临的体验和性能问题也越来越复杂。来自阿里巴巴 UC 客户端研发团队的刘森森分享了 UC 团队在 Flutter 实践中遇到的痛点问题，以及在引擎层和应用层的实际解决方案。请点击下方视频链接了解更多详细信息。
 
 ### **字节跳动 Flutter 业务大规模落地及技术演进**
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=417458713&bvid=BV1yV411n7jz&cid=318243424&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=417458713&bvid=BV1yV411n7jz&cid=318243424&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 来自字节跳动的 Flutter 技术负责人袁辉辉在视频中介绍了 Flutter 业务的大规模落地 (字节跳动已有超过 60 个 App 选择使用 Flutter)，以及 ByteFlutter 的技术演进和在嵌入式设备的应用。同时，袁辉辉也分享了字节跳动在技术开源和生态共建的后续规划和思考。请点击下方视频链接了解更多详细信息。
 
 ### **Flutter 社区开发者分享**
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=204905442&bvid=BV1hh411D7mV&cid=318244827&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=204905442&bvid=BV1hh411D7mV&cid=318244827&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 Google Flutter 团队产品经理 Zoey 邀请了三位来自 Flutter 社区的开发者刘彦博 (Flutter GDE)、王鑫磊、李承峻 (Alex) 进行圆桌讨论，分享 Flutter 的开发经验和对社区建设的思考。请点击下方视频链接了解更多详细信息。
 
diff --git a/src/posts/flutter-engage-event-recap.md b/src/posts/flutter-engage-event-recap.md
index 4074f6801a..15800a419c 100644
--- a/src/posts/flutter-engage-event-recap.md
+++ b/src/posts/flutter-engage-event-recap.md
@@ -3,6 +3,8 @@ title: Flutter Engage 活动精彩回顾 — 中文字幕视频
 toc: true
 ---
 
+{% include docs/bili_shims.liquid %}
+
 ![](https://devrel.andfun.cn/devrel/posts/2021/03/21051eef2d1ac.png)
 
 在 Flutter Engage 预告之后，无数开发者充满期待并且在社区中积极讨论交流，分享见解。今天，我们正式发布 Flutter 2.0，并在 [Flutter Engage 活动](https://events.flutter.dev/) 中详细介绍了这一重大里程碑！
@@ -19,33 +21,33 @@ toc: true
 
 ### Flutter Engage 主题演讲
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=459378178&bvid=BV125411N7AU&cid=305744087&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=459378178&bvid=BV125411N7AU&cid=305744087&page=1&autoplay=false" {{bili-set}}></iframe>
 
-Flutter 2.0 的发布是 Flutter 的一次重大升级和重要里程碑，它在先前版本的推动和基础之上构建而成，为生产使用开辟了一系列新的目标平台。我们将与您一同探讨 Flutter 在 Android 和 iOS 以及 web 和桌面设备上的使用，带您了解我们对 Dart 的工作，如何为您的代码提供独特的技术框架，为构建应用提供可移植的高效且强大的功能组合。[点击这里](https://www.bilibili.com/video/BV125411N7AU) 查看详细视频。
+Flutter 2.0 的发布是 Flutter 的一次重大升级和重要里程碑，它在先前版本的推动和基础之上构建而成，为生产使用开辟了一系列新的目标平台。我们将与您一同探讨 Flutter 在 Android 和 iOS 以及 web 和桌面设备上的使用，带您了解我们对 Dart 的工作，如何为您的代码提供独特的技术框架，为构建应用提供可移植的高效且强大的功能组合。[点击这里]({{bili-video}}/BV125411N7AU) 查看详细视频。
 
 ### 构建 Flutter web 应用
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=246950294&bvid=BV1Jv411h7x6&cid=305745348&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=246950294&bvid=BV1Jv411h7x6&cid=305745348&page=1&autoplay=false" {{bili-set}}></iframe>
 
-随着 Flutter 2.0 的发布，我们现在可以使用稳定版本为 web 提供产品质量支持，这意味着您可以使用相同的代码库为 iOS、Android 和浏览器构建应用。本视频将向您展示让现有的 Flutter 应用在 web 上运行的具体方法以及调试和部署技巧。[点击这里](https://www.bilibili.com/video/BV1Jv411h7x6) 查看详细视频。
+随着 Flutter 2.0 的发布，我们现在可以使用稳定版本为 web 提供产品质量支持，这意味着您可以使用相同的代码库为 iOS、Android 和浏览器构建应用。本视频将向您展示让现有的 Flutter 应用在 web 上运行的具体方法以及调试和部署技巧。[点击这里]({{bili-video}}/BV1Jv411h7x6) 查看详细视频。
 
 ### 将应用迁移至 null safety
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=799460080&bvid=BV1sy4y1a7SA&cid=305745798&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width="560" height="315"> </iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=799460080&bvid=BV1sy4y1a7SA&cid=305745798&page=1&autoplay=false" {{bili-set}}> </iframe>
 
-带您体验借助 Dart 团队打造的新迁移工具将应用迁移到 null safety 的过程，让您在 Flutter 中的开发工作变得更加轻松、快捷和可靠。[点击这里](https://www.bilibili.com/video/BV1sy4y1a7SA) 查看详细视频。
+带您体验借助 Dart 团队打造的新迁移工具将应用迁移到 null safety 的过程，让您在 Flutter 中的开发工作变得更加轻松、快捷和可靠。[点击这里]({{bili-video}}/BV1sy4y1a7SA) 查看详细视频。
 
 ### 优化 Flutter 应用使用体验
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=289390157&bvid=BV1tf4y167v5&cid=305746482&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width="560" height="315"> </iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=289390157&bvid=BV1tf4y167v5&cid=305746482&page=1&autoplay=false" {{bili-set}}> </iframe>
 
-为您介绍如何优化 Flutter 应用的使用体验，探讨一些优秀应用设计的知识和原理，助您设计出体验更佳的应用！[点击这里](https://www.bilibili.com/video/BV1tf4y167v5) 查看详细视频。
+为您介绍如何优化 Flutter 应用的使用体验，探讨一些优秀应用设计的知识和原理，助您设计出体验更佳的应用！[点击这里]({{bili-video}}/BV1tf4y167v5) 查看详细视频。
 
 ### 如何通过 Flutter 应用获利
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=289460171&bvid=BV1Vf4y147Er&cid=305747760&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width="560" height="315"> </iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=289460171&bvid=BV1Vf4y147Er&cid=305747760&page=1&autoplay=false" {{bili-set}}> </iframe>
 
-适用于 Flutter 的 Google 移动广告 SDK 现已发布 Beta 版本，这款全新的插件现已支持各种广告形式并已在 pub.dev 上发布。我们将着重介绍该 SDK，希望这款新插件，能够帮助您通过 Flutter 应用，实现进一步收入增长。[点击这里](https://www.bilibili.com/video/BV1Vf4y147Er) 查看详细视频。
+适用于 Flutter 的 Google 移动广告 SDK 现已发布 Beta 版本，这款全新的插件现已支持各种广告形式并已在 pub.dev 上发布。我们将着重介绍该 SDK，希望这款新插件，能够帮助您通过 Flutter 应用，实现进一步收入增长。[点击这里]({{bili-video}}/BV1Vf4y147Er) 查看详细视频。
 
 ## 参与讨论
 
diff --git a/src/posts/flutter-highlight-2021.md b/src/posts/flutter-highlight-2021.md
index 5c1e276c5e..0964f65d63 100644
--- a/src/posts/flutter-highlight-2021.md
+++ b/src/posts/flutter-highlight-2021.md
@@ -3,6 +3,8 @@ title: 回顾 2021 Flutter 精彩时刻
 description: 祝愿各位 Flutter 开发者们虎年大吉、虎虎生威！
 ---
 
+{% include docs/bili_shims.liquid %}
+
 ![Flutter新年](https://devrel.andfun.cn/devrel/posts/2022/01/6879bbc9b157d.png)
 
 ![2](https://devrel.andfun.cn/devrel/posts/2022/01/752a1f9e5ac3f.png)
@@ -18,7 +20,7 @@ Flutter 生态里有一个非常重要的角色，就是围绕着 Flutter 发布
 
 ![2.5](https://devrel.andfun.cn/devrel/posts/2022/01/30914f7e0b7fe.png)
 
-21 年 9 月，Flutter 更新到了 [2.5 正式版](./whats-new-in-flutter-2-5)，Dart 也发布了 [2.14 正式版](./announcing-dart-2-14)，这个版本仍延续了过去的一些工作，继续进行一些重要的性能和工具改进，也同时加入了对 Material You 的支持等。从这个版本开始，Dart 对 Apple 芯片的支持正式在稳定版渠道推出，同时增加了很多共享的代码 lint 工具，pub.dev 上的评分引擎也开始使用其中的部分 lint 规则，package 发布工具也支持了识别和使用 `.gitignore` 来声明哪些需要忽略的内容，避免上传无用的代码片段等。随着 Dart 空安全特性的推出，有很多应用开发者和 package 开发者们已经开始跟进并应用了健全的空安全特性。除了稳步更新 Flutter 移动端的性能和开发体验，[Flutter Web 也发布了产品路线图](./flutter-2022-roadmap)，力求让 Flutter 应用在 Web 平台的体验更自然。Flutter 团队几乎完全依靠 GitHub 等开源开放平台协作，所有的流程和代码改进都是向社区公开透明的，因此我们也在非常努力的推动国内的开发者参与全球社区贡献，并 [在每次的开发者调查中发声](https://www.bilibili.com/video/BV1CP4y1V7c9)，很多新特性和改进都会在 GitHub Issue 上发布并公开征集反馈，开发者们的反馈和交互越多，Flutter 团队就越重视，越会投入资源去解决。
+21 年 9 月，Flutter 更新到了 [2.5 正式版](./whats-new-in-flutter-2-5)，Dart 也发布了 [2.14 正式版](./announcing-dart-2-14)，这个版本仍延续了过去的一些工作，继续进行一些重要的性能和工具改进，也同时加入了对 Material You 的支持等。从这个版本开始，Dart 对 Apple 芯片的支持正式在稳定版渠道推出，同时增加了很多共享的代码 lint 工具，pub.dev 上的评分引擎也开始使用其中的部分 lint 规则，package 发布工具也支持了识别和使用 `.gitignore` 来声明哪些需要忽略的内容，避免上传无用的代码片段等。随着 Dart 空安全特性的推出，有很多应用开发者和 package 开发者们已经开始跟进并应用了健全的空安全特性。除了稳步更新 Flutter 移动端的性能和开发体验，[Flutter Web 也发布了产品路线图](./flutter-2022-roadmap)，力求让 Flutter 应用在 Web 平台的体验更自然。Flutter 团队几乎完全依靠 GitHub 等开源开放平台协作，所有的流程和代码改进都是向社区公开透明的，因此我们也在非常努力的推动国内的开发者参与全球社区贡献，并 [在每次的开发者调查中发声]({{bili-video}}/BV1CP4y1V7c9)，很多新特性和改进都会在 GitHub Issue 上发布并公开征集反馈，开发者们的反馈和交互越多，Flutter 团队就越重视，越会投入资源去解决。
 
 从 Play 商店的应用数量看，Flutter 应用数量从 21 年第一季度的 15 万+ 上升到第二季度的 20 万+，同时，21 年 4 月到 5 月，Play 商店中有超过八分之一的新应用是采用 Flutter 构建，21 年年末 Play 商店的 Flutter 应用数量对比第二季度几乎翻番，达到了 37.5 万+ 款应用。这些数字证明着 Flutter 的流行，以及受到越来越多开发者们的采纳和喜爱。开发者们对 Flutter 的采纳和喜爱也同时体现在很多开发者报告里，分析公司 SlashData 的报告里显示：Flutter 是如今最流行的跨平台开发框架，有 45% 的受访开发者选用；RedMonk 排名中提到“Dart 有显著上升”；StackOverflow 的开发者调查体现出开发者喜爱的编程语言里，Dart 排名第七、喜爱的框架里，Flutter 排名第二；JetBrains 2021 开发者生态系统现状报告中显示，在跨平台移动框架选择上，Flutter 的受欢迎程度持续增长，已经超越 React Native 成为最流行的跨平台移动框架。使用 Flutter 的头部公司和应用也包含了 BMW、ByteDance、滴滴、eBay、Grab、Greggs、贝壳、Norton、Philips Hue、PUBG、SHEIN、trip.com、WeChat 等 (*排名不分先后)，截止 21 年末，全球的 Flutter 开发者数量已达 300 万以上，Flutter 也从最初的「便携式 UI 工具包」进化成「一个为环境计算打造的 UI 平台」。
 
diff --git a/src/posts/flutter-news-from-gdd-china-flutter1.9.md b/src/posts/flutter-news-from-gdd-china-flutter1.9.md
index 99a4b9435c..d2bfb0b6f6 100644
--- a/src/posts/flutter-news-from-gdd-china-flutter1.9.md
+++ b/src/posts/flutter-news-from-gdd-china-flutter1.9.md
@@ -3,7 +3,8 @@ title: Flutter 1.9 正式发布
 toc: true
 ---
 
- 
+{% include docs/bili_shims.liquid %}
+
 ![Google Developer Days taking place in China](https://files.flutter-io.cn/posts/flutter-cn/2019/flutter-1dot9-release/flutter1-9-gdd-keynote.jpg){:width="95%"}
 
 本周对 [Flutter](http://flutter.cn) 意义非凡。Google 面向中国开发者举办的重量级年度盛会——[中国 Google 开发者大会](https://events.google.cn/intl/en/developerdays2019/) 于今日正式拉开帷幕。在主题演讲环节，Flutter 团队宣布推出最新稳定版: Flutter 1.9。这是 Flutter 迄今为止最大的一次版本更新，100 余位贡献者提交共计超过 1,500 份 pull request。Flutter 1.9 引入的新特性与更新涵盖范围广泛，包括 macOS Catalina 和 iOS 13 支持、工具支持优化、多项 Dart 语言新特性以及全新的 Material widget。
@@ -81,9 +82,9 @@ ToggleButtons widget 可将同一行的多个 ToggleButton widget 组合到一
 ## 社区
 
 Flutter 惊人的成长速度和采用率让我们倍感欣慰。在 Google 内部，有超过 20 个项目正在稳步推进中，凝集着数千位工程师的辛勤付出，其中有部分项目已成功落地，其余的则尚在开发阶段。在本周的 Google 开发者大会上，我们已经与大家分享了全球互联网巨头腾讯的成功经验，介绍了腾讯是如何把 Flutter 灵活地运用到越来越多的产品中，欢迎收看下方视频，了解更多。
-Bilibili 视频链接 https://www.bilibili.com/video/av67230699/
+Bilibili 视频链接 {{bili-video}}/av67230699/
 
-<iframe src="//player.bilibili.com/player.html?aid=67230699&cid=116573649&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe src="{{bili-embed}}?aid=67230699&cid=116573649&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 现在，让我们插个轻松的话题，邀请您参加一个有趣的小游戏。请找到您手边的 Google Assistant 设备，然后对它说 “OK Google. Talk to Flutter Widget Quiz.” (OK Google, [为我接通 Flutter Widget 问答挑战赛](https://assistant.google.com/services/a/uid/000000f3a4034e91))。十分感谢 Flutter 社区对这份小测试的倾情贡献，期待各位小伙伴的精彩表现:
 
diff --git a/src/posts/flutter-pubg-mobile-dev-story.md b/src/posts/flutter-pubg-mobile-dev-story.md
index 0fec945635..ea5610ed86 100644
--- a/src/posts/flutter-pubg-mobile-dev-story.md
+++ b/src/posts/flutter-pubg-mobile-dev-story.md
@@ -7,11 +7,13 @@ image:
     path: https://devrel.andfun.cn/devrel/posts/2023/02/lVFv2g.jpg
 ---
 
+{% include docs/bili_shims.liquid %}
+
 > _由光子工作室及 Krafton 联合研发的 PUBG MOBILE 依然保持着_[_极高的人气_](https://101.dev/t/google-play-2022/823)_，目前全球有 10 亿玩家，日活跃 5,000 万 (不包括中国大陆地区)。从游戏策划伊始，团队就打算为各个平台的玩家们打造功能完善的社区模块。_
 
 在 PUBG MOBILE 中，玩家们被空投到一个荒岛上，孤身奋战或与队友合作，努力与对手周旋，幸存到最后赢得胜利。想要在这个游戏里 "吃鸡"，玩家的敏捷反应和大局意识都很重要——而对负责开发游戏内社区模块的团队来说，这两点正好也是他们成功的秘诀。
 
-<iframe width="690" height="480" src="//player.bilibili.com/player.html?aid=393503978&bvid=BV1sd4y1H7G7&cid=985504987&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe width="690" height="480" src="{{bili-embed}}?aid=393503978&bvid=BV1sd4y1H7G7&cid=985504987&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 △ PUBG MOBILE 如何连接 10 亿玩家 | Flutter 开发者故事
     
diff --git a/src/posts/flutter-spring-2020-update.md b/src/posts/flutter-spring-2020-update.md
index 601f5b5b84..d55748ce25 100644
--- a/src/posts/flutter-spring-2020-update.md
+++ b/src/posts/flutter-spring-2020-update.md
@@ -3,6 +3,8 @@ title: 2020 春季速递：Flutter 势头正盛
 toc: true
 ---
 
+{% include docs/bili_shims.liquid %}
+
 文 / Patrick Sosinski & Tim Sneath
 
 在过去的几个月中，
@@ -43,7 +45,7 @@ Flutter 的企业用户增长迅速。我们的研究结果持续表明，
 Nubank 选择了 Flutter，并在此后将其前端开发团队统一在同一个框架内，
 这也使得他们能在 iOS 和 Android 上同时发布新功能。
 
-请观看他们的 [开发者故事](https://www.bilibili.com/video/BV1zi4y1t77J/)，了解他们如何用 Flutter 的优势改进团队开发体验以及打造跨平台优质应用:
+请观看他们的 [开发者故事]({{bili-video}}/BV1zi4y1t77J/)，了解他们如何用 Flutter 的优势改进团队开发体验以及打造跨平台优质应用:
 
 企业用户普遍要求使用专业组件。我们正在与 [SyncFusion](https://www.syncfusion.com/) 合作，
 他们的 Essential Studio 产品现在包含了一系列
diff --git a/src/posts/flutter-web-support-hits-the-stable-milestone.md b/src/posts/flutter-web-support-hits-the-stable-milestone.md
index 4c5f0bb8c0..9a676d6080 100644
--- a/src/posts/flutter-web-support-hits-the-stable-milestone.md
+++ b/src/posts/flutter-web-support-hits-the-stable-milestone.md
@@ -3,6 +3,8 @@ title: Flutter Web 支持现已进入稳定版
 toc: true
 ---
 
+{% include docs/bili_shims.liquid %}
+
 ![](https://devrel.andfun.cn/devrel/posts/2021/03/90973fe9e93f5.png)
 
 *作者 / Mariam Hasnany, Product Manager, Flutter*
@@ -157,6 +159,6 @@ Flutter 2 特别适合实现渐进式 web 应用 (PWA)。我们建议开发者
 
 借助 Dart 的可移植性、Web 平台的强大功能，以及 Flutter 框架的灵活性，您现在可以用同一套代码库，构建用于 iOS、Android 以及浏览器的应用。
 
-如果您已经开发了 Flutter web 应用，现在就可以在 [稳定渠道](https://github.com/flutter/flutter/wiki/Flutter-build-release-channels#stable) 中进行构建。如果您刚开始学习构建 Flutter web 应用，请移步官方文档访问我们的 [入门 codelab 课程](https://flutter.cn/docs/get-started/codelab-web)，以及 Flutter Engage 上的 [web 演讲](https://www.bilibili.com/video/BV1Jv411h7x6)。构建 web 应用时，如果您发现了任何问题，请随时 [前往 GitHub 提交给我们](https://goo.gle/flutter_web_issue)。
+如果您已经开发了 Flutter web 应用，现在就可以在 [稳定渠道](https://github.com/flutter/flutter/wiki/Flutter-build-release-channels#stable) 中进行构建。如果您刚开始学习构建 Flutter web 应用，请移步官方文档访问我们的 [入门 codelab 课程](https://flutter.cn/docs/get-started/codelab-web)，以及 Flutter Engage 上的 [web 演讲]({{bili-video}}/BV1Jv411h7x6)。构建 web 应用时，如果您发现了任何问题，请随时 [前往 GitHub 提交给我们](https://goo.gle/flutter_web_issue)。
 
 我们非常期待看到您使用 Flutter web 所构建的精彩应用！
\ No newline at end of file
diff --git a/src/posts/google-i-o-2021-flutter-workshops.md b/src/posts/google-i-o-2021-flutter-workshops.md
index d1cb6b4cd5..e4537f4769 100644
--- a/src/posts/google-i-o-2021-flutter-workshops.md
+++ b/src/posts/google-i-o-2021-flutter-workshops.md
@@ -3,33 +3,35 @@ title: 实战合集 — I/O 2021 Flutter 研讨会
 toc: true
 ---
 
+{% include docs/bili_shims.liquid %}
+
 ![](https://devrel.andfun.cn/devrel/posts/2021/06/mjy4VZ.jpeg)
 
 2021 年的 Google I/O 大会已圆满闭幕，本次大会带来了诸多关于各项谷歌开发技术产品的最新更新。在此次 I/O，[Flutter 发布了 2.2 版本](https://flutter.cn/posts/announcing-flutter-2-2?t=1)，包括 Web 版的增强、更多 Material 图标、改进了的文本处理方式以及对 Windows UWP 的支持发布了 alpha 版本 [等](https://flutter.cn/posts/whats-new-in-flutter-2-2?t=1)；Dart 也更新到了 [2.13 正式版](https://flutter.cn/posts/announcing-dart-2-13)，推出了空安全的更新、类型别名、Dart FFI 以及性能的提升和云计算平台的支持等。
 
 除了主题演讲之外，谷歌的各个技术产品团队也发布了六个实战类的教程合集，包括为初级开发者准备的构建第一个 Flutter 应用、Dart 空安全实战以及使用 Dialogflow 构建一个语音聊天机器人应用，适合中高级开发者的实战教程，如使用 Inherited Widgets 做状态管理、在 Flutter 中构建滚动体验以及在 Flutter 中使用 Firebase，我们已经将这些视频通过社区账号发布，请点击下面链接到 Bilibili 中观看：
 
-<iframe src="//player.bilibili.com/player.html?aid=248744553&bvid=BV1Wv411W7yF&cid=354736130&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe src="{{bili-embed}}?aid=248744553&bvid=BV1Wv411W7yF&cid=354736130&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 △ 使用 Inherited Widgets 来管理应用状态
 
-<iframe src="//player.bilibili.com/player.html?aid=291195426&bvid=BV11f4y187gV&cid=354814353&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe src="{{bili-embed}}?aid=291195426&bvid=BV11f4y187gV&cid=354814353&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 △ 在 Flutter 里构建滑动体验
 
-<iframe src="//player.bilibili.com/player.html?aid=846249495&bvid=BV1n54y1H7dZ&cid=354773704&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe src="{{bili-embed}}?aid=846249495&bvid=BV1n54y1H7dZ&cid=354773704&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 △ 构建你的第一个 Flutter 应用
 
-<iframe src="//player.bilibili.com/player.html?aid=716190926&bvid=BV1pX4y1A7SH&cid=355145231&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe src="{{bili-embed}}?aid=716190926&bvid=BV1pX4y1A7SH&cid=355145231&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 △ 使用 Dialogflow 和 Flutter 构建语音聊天机器人应用
 
-<iframe src="//player.bilibili.com/player.html?aid=888693780&bvid=BV1tK4y1u76N&cid=354814166&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe src="{{bili-embed}}?aid=888693780&bvid=BV1tK4y1u76N&cid=354814166&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 △ Dart 的健全空安全实战
 
-<iframe src="//player.bilibili.com/player.html?aid=631219825&bvid=BV14b4y1o7Wn&cid=355066643&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe src="{{bili-embed}}?aid=631219825&bvid=BV14b4y1o7Wn&cid=355066643&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 △ 在 Flutter 中使用 Firebase
 
diff --git a/src/posts/google-io-2021-flutter-recap.md b/src/posts/google-io-2021-flutter-recap.md
index f281b05872..5d3a33035b 100644
--- a/src/posts/google-io-2021-flutter-recap.md
+++ b/src/posts/google-io-2021-flutter-recap.md
@@ -3,11 +3,13 @@ title: Flutter 不容错过的 7 大亮点 — Google I/O 精彩回顾
 toc: true
 ---
 
+{% include docs/bili_shims.liquid %}
+
 ![](https://devrel.andfun.cn/devrel/posts/2021/06/LbD38J.jpg)
 
 Flutter 在今年的 Google I/O 上发布了许多重磅更新，欢迎大家和我们一起了解其中不容错过的 7 大亮点:
 
-<iframe src="//player.bilibili.com/player.html?aid=248872169&bvid=BV13v411H7WM&cid=358828490&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe src="{{bili-embed}}?aid=248872169&bvid=BV13v411H7WM&cid=358828490&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 △ Flutter 不容错过的 7 大亮点
 
@@ -15,7 +17,7 @@ Flutter 在今年的 Google I/O 上发布了许多重磅更新，欢迎大家和
 
 首先自然是全新的稳定版 Flutter 2.2。在这个最新的版本中，我们专注于提升 Flutter 的质量和效率，欢迎阅读 [这篇文章](https://flutter.cn/posts/announcing-flutter-2-2)，或者通过下面的视频了解 Flutter 2.2 的更新一览:
 
-<iframe src="//player.bilibili.com/player.html?aid=760628765&bvid=BV1R64y1C7hz&cid=341865682&page=1&autoplay=false" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe>
+<iframe src="{{bili-embed}}?aid=760628765&bvid=BV1R64y1C7hz&cid=341865682&page=1&autoplay=false" {{bili-set-short}}> </iframe>
 
 △ Flutter 更新一览
 
diff --git a/src/posts/seamless-multi-platform-app-development-with-flutter.md b/src/posts/seamless-multi-platform-app-development-with-flutter.md
index edbfb92521..de39ead36d 100644
--- a/src/posts/seamless-multi-platform-app-development-with-flutter.md
+++ b/src/posts/seamless-multi-platform-app-development-with-flutter.md
@@ -3,6 +3,8 @@ title: 借助 Flutter 顺畅地开发多平台应用
 toc: true
 ---
 
+{% include docs/bili_shims.liquid %}
+
 ![](https://devrel.andfun.cn/devrel/posts/2021/04/VdWBeY.png)
 
 Flutter 已于近期发布了 [Flutter 2](https://flutter.cn/posts/announcing-flutter-2)，Flutter 和 Dart 的产品总监 Tim Sneath 在 2021 年三月上旬举办的 [Flutter Engage](https://flutter.cn/posts/flutter-engage-event-recap) 活动中表示，Flutter 致力于成为多平台 UI 工具包，为了 "彻底改变开发者眼中的应用构建方式，让他们从期望打造的体验来入手进行开发，而无需优先考虑目标平台"。
@@ -50,7 +52,7 @@ Flutter 的 *dev_compiler* 具有与 JIT 编译相同的智能功能。因此，
 
 可折叠的设备类型也使得这些设备中的应用可以和其他应用互相分享内容。例如，为您的应用添加拖放功能后，您可以在并排运行的应用间互相移动内容。
 
-在 [Flutter Engage](https://flutter.cn/posts/flutter-engage-event-recap) 活动中，[Microsoft 宣布](https://www.bilibili.com/video/bv1g64y117Jo) 正在与 Google 合作，使 Flutter 支持可折叠设备。Microsoft 将提供代码，使 Flutter 应用把握这些新机会，在 Surface Duo 设备和三星等制造商生产的设备上大展拳脚。
+在 [Flutter Engage](https://flutter.cn/posts/flutter-engage-event-recap) 活动中，[Microsoft 宣布]({{bili-video}}/bv1g64y117Jo) 正在与 Google 合作，使 Flutter 支持可折叠设备。Microsoft 将提供代码，使 Flutter 应用把握这些新机会，在 Surface Duo 设备和三星等制造商生产的设备上大展拳脚。
 
 有了 [Flutter 2](https://flutter.cn/posts/whats-new-in-flutter-2-0)，所有 Flutter widgets 均将支持可折叠设备。例如，在您使用对话框时，应用能感知到其位于折叠设备上，将内容显示在右边或左边的窗格中。
 
@@ -62,7 +64,7 @@ Flutter 的 *dev_compiler* 具有与 JIT 编译相同的智能功能。因此，
 
 [Flutter 2](https://flutter.cn/posts/whats-new-in-flutter-2-0) 可以帮助开发者构建出适用于移动端、web 端、桌面端，甚至是新兴设备类型的精美应用，但这只是 Flutter 灵活性的冰山一角。想要成为真正的可移植性平台，支持发布应用至客户所在的任意平台，Flutter 还需要为嵌入式设备提供支持。丰田已于近日宣布，其车辆的信息娱乐系统未来将由 Flutter 提供动力支持，届时，Flutter 将为全球最大的汽车制造商之一带来最佳的数字化体验。
 
-来自丰田北美汽车公司 (Toyota Motor North America) 总工程师 Daniel Hall 在 [Flutter Engage 活动](https://flutter.cn/posts/flutter-engage-event-recap) 中介绍了此次合作以及 [选择 Flutter 的原因](https://www.bilibili.com/video/bv1g64y117Jo):
+来自丰田北美汽车公司 (Toyota Motor North America) 总工程师 Daniel Hall 在 [Flutter Engage 活动](https://flutter.cn/posts/flutter-engage-event-recap) 中介绍了此次合作以及 [选择 Flutter 的原因]({{bili-video}}/bv1g64y117Jo):
 
 * 丰田的客户期望享受到高性能车载用户体验，使之与丰田汽车的整体质量相符。Flutter 的渲染引擎可在受限的环境下提供优异性能，且其自带的 AOT 编译功能可为丰田提供其在车载技术中所追求的一致性特色。
 * 在 Flutter 的助力下，丰田提供的车载用户体验可以与客户期待在智能手机中获得的体验相媲美。丰田相信 Flutter 的跨平台机制所包含的触控机制能使其适应任何运行环境。这种跨平台机制可帮助丰田规避许多嵌入式系统都会遇到的问题，如性能迟滞，用户体验差等。
diff --git a/src/reference/user-surveys.md b/src/reference/user-surveys.md
index a15c3a08b0..0abc6d6e5f 100644
--- a/src/reference/user-surveys.md
+++ b/src/reference/user-surveys.md
@@ -34,4 +34,4 @@ To mute survey announcements, you might do one of the following:
   [Disabling 
 analytics reporting]({{site.url}}/reference/crash-reporting#disabling-analytics-reporting).
 
-[Medium]: https://medium.com/flutter/search?q=survey
+[Medium]: {{site.flutter-medium}}/search?q=survey
diff --git a/src/reference/widgets.md b/src/reference/widgets.md
index a6b4fc5313..3faeb4c1fa 100644
--- a/src/reference/widgets.md
+++ b/src/reference/widgets.md
@@ -8,6 +8,9 @@ short-title: Widget 目录
 show_breadcrumbs: false
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 {% assign sorted = site.data.catalog.widgets | sort:'name' -%}
 
 This is an alphabetical list of nearly every widget that is bundled with
@@ -26,10 +29,11 @@ our [videos]({{site.url}}/resources/videos) page.
 关于更多系列视频，也欢迎查看我们的
 [学习 Flutter 的视频列表]({{site.url}}/resources/videos)。
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=55795672&cid=97539385&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
-[Widget of the Week playlist]({{site.youtube-site}}/playlist?list=PLjxrf2q8roU23XGwz3Km7sQZFTdB996iG)
+<iframe width="560" height="315" src="{{bili-embed}}?aid=55795672&cid=97539385&page=1&autoplay=false" title="每周 Flutter Widget 介绍" {{bili-set}}></iframe>
+
+[Widget of the Week playlist]({{yt-playlist}}PLjxrf2q8roU23XGwz3Km7sQZFTdB996iG)
 
-[Widget 视频的每周播放列表]({{site.youtube-site}}/playlist?list=PLjxrf2q8roU23XGwz3Km7sQZFTdB996iG)
+[Widget 视频的每周播放列表]({{yt-playlist}}PLjxrf2q8roU23XGwz3Km7sQZFTdB996iG)
 
 <div class="card-deck card-deck--responsive">
 {% for comp in sorted %}
diff --git a/src/release/breaking-changes/2-5-deprecations.md b/src/release/breaking-changes/2-5-deprecations.md
index 70b28b9f01..d429b0fa1b 100644
--- a/src/release/breaking-changes/2-5-deprecations.md
+++ b/src/release/breaking-changes/2-5-deprecations.md
@@ -253,7 +253,7 @@ Relevant PRs:
 * Deprecated in [#60320]({{site.repo.flutter}}/issues/60320)
 * Removed in [#90294]({{site.repo.flutter}}/issues/90294)
 
-[Flutter Hybrid Composition]: {{site.github}}/flutter/flutter/wiki/Hybrid-Composition
+[Flutter Hybrid Composition]: {{site.repo.flutter}}/wiki/Hybrid-Composition
 [`AndroidViewController`]: {{site.api}}/flutter/services/AndroidViewController-class.html
 [`TextureAndroidViewController`]: {{site.api}}/flutter/services/TextureAndroidViewController-class.html
 [`SurfaceAndroidViewController`]: {{site.api}}/flutter/services/SurfaceAndroidViewController-class.html
diff --git a/src/release/breaking-changes/android-14-nonlinear-text-scaling-migration.md b/src/release/breaking-changes/android-14-nonlinear-text-scaling-migration.md
index 591d4fda27..cc21660e13 100644
--- a/src/release/breaking-changes/android-14-nonlinear-text-scaling-migration.md
+++ b/src/release/breaking-changes/android-14-nonlinear-text-scaling-migration.md
@@ -73,7 +73,7 @@ See also:
 
 * [Deprecate `textScaleFactor` in favor of `TextScaler`][]
 
-[Android 14 nonlinear font scaling]: https://developer.android.com/about/versions/14/features#non-linear-font-scaling
+[Android 14 nonlinear font scaling]: {{site.android-dev}}/about/versions/14/features#non-linear-font-scaling
 [Deprecate `textScaleFactor` in favor of `TextScaler`]: {{site.url}}/release/breaking-changes/deprecate-textscalefactor
 [`TextScaler`]: {{site.api}}/flutter/painting/TextScaler-class.html
 [New font scaling system (Issue 116231)]: {{site.repo.flutter}}/issues/116231
diff --git a/src/release/breaking-changes/android-activity-control-surface-attach.md b/src/release/breaking-changes/android-activity-control-surface-attach.md
index 351652bcb6..08125d175f 100644
--- a/src/release/breaking-changes/android-activity-control-surface-attach.md
+++ b/src/release/breaking-changes/android-activity-control-surface-attach.md
@@ -139,4 +139,4 @@ event crosstalk
 [`FlutterView`]: {{site.api}}/javadoc/io/flutter/view/FlutterView.html
 [`getActivityControlSurface()`]: {{site.api}}/javadoc/io/flutter/embedding/engine/FlutterEngine.html#getActivityControlSurface--
 [Issue #66192]: {{site.repo.flutter}}/issues/66192.
-[Issue #21272]: {{site.github}}/flutter/engine/pull/21272
+[Issue #21272]: {{site.repo.engine}}/pull/21272
diff --git a/src/release/breaking-changes/android-java-gradle-migration-guide.md b/src/release/breaking-changes/android-java-gradle-migration-guide.md
index db1d895b94..b6bc79086b 100644
--- a/src/release/breaking-changes/android-java-gradle-migration-guide.md
+++ b/src/release/breaking-changes/android-java-gradle-migration-guide.md
@@ -117,5 +117,5 @@ A few notes to be aware of:
 * Upgrading to Flutter 3.10 won't fix this issue.
 
 [deprecated Gradle classes]: https://docs.gradle.org/7.6/javadoc/deprecated-list.html
-[issue 122609]: {{site.github}}/flutter/flutter/issues/122609
+[issue 122609]: {{site.repo.flutter}}/issues/122609
 [splitting out ApplicationId from PackageName]: http://tools.android.com/tech-docs/new-build-system/applicationid-vs-packagename
diff --git a/src/release/breaking-changes/android-predictive-back.md b/src/release/breaking-changes/android-predictive-back.md
index 740adc2696..04d04f621e 100644
--- a/src/release/breaking-changes/android-predictive-back.md
+++ b/src/release/breaking-changes/android-predictive-back.md
@@ -15,7 +15,7 @@ have replaced just-in-time navigation APIs, like `WillPopScope` and
 ## Background
 
 Android 14 introduced the
-[Predictive Back feature](https://developer.android.com/guide/navigation/predictive-back-gesture),
+[Predictive Back feature]({{site.android-dev}}/guide/navigation/predictive-back-gesture),
 which allows the user to peek behind the current route during a valid back
 gesture and decide whether to continue back or to cancel the gesture. This was
 incompatible with Flutter's navigation APIs that allow the developer to cancel a
@@ -325,7 +325,7 @@ return PopScope(
      This will be unnecessary on future versions of Android.
   1. Set `android:enableOnBackInvokedCallback="true"` in
      `android/app/src/main/AndroidManifest.xml`. If needed, refer to
-     [Android's full guide](https://developer.android.com/guide/navigation/custom-back/predictive-back-gesture)
+     [Android's full guide]({{site.android-dev}}/guide/navigation/custom-back/predictive-back-gesture)
      for migrating Android apps to support predictive back.
   1. Make sure you're using version `3.14.0-7.0.pre` of Flutter or greater.
   1. Run the app and perform a back gesture (swipe from the left side of
diff --git a/src/release/breaking-changes/android-setIsRunningInRobolectricTest-removed.md b/src/release/breaking-changes/android-setIsRunningInRobolectricTest-removed.md
index 8feefebd93..f54dc5aad0 100644
--- a/src/release/breaking-changes/android-setIsRunningInRobolectricTest-removed.md
+++ b/src/release/breaking-changes/android-setIsRunningInRobolectricTest-removed.md
@@ -55,9 +55,9 @@ and the following [commit][] added a
 [PR 20473][] further refactored `FlutterLoader`
 and `FlutterJNI` to allow for additional mocking and testing.
 
-[commit]: {{site.github}}/flutter/engine/commit/15f5696c4139a21e1fc54014ce17d01f6ad1737c#diff-f928557f2d60773a8435366400fa42ed
-[engine commit]: {{site.github}}/flutter/engine/commit/15f5696c4139a21e1fc54014ce17d01f6ad1737c#diff-599e1d64442183ead768757cca6805c3L154
-[PR 20473]: {{site.github}}/flutter/engine/pull/20473
+[commit]: {{site.repo.engine}}/commit/15f5696c4139a21e1fc54014ce17d01f6ad1737c#diff-f928557f2d60773a8435366400fa42ed
+[engine commit]: {{site.repo.engine}}/commit/15f5696c4139a21e1fc54014ce17d01f6ad1737c#diff-599e1d64442183ead768757cca6805c3L154
+[PR 20473]: {{site.repo.engine}}/pull/20473
 to allow for additional mocking/testing.
 
 ## Migration guide
diff --git a/src/release/breaking-changes/android-v1-embedding-create-deprecation.md b/src/release/breaking-changes/android-v1-embedding-create-deprecation.md
index 3b4d4545d7..7a1dc1e7b9 100644
--- a/src/release/breaking-changes/android-v1-embedding-create-deprecation.md
+++ b/src/release/breaking-changes/android-v1-embedding-create-deprecation.md
@@ -20,7 +20,7 @@ to migrate following the instructions in
 [Supporting the new Android plugins APIs][].
 
 [Android Migration Summary]: {{site.url}}/go/android-migration-summary
-[Upgrading pre 1.12 Android projects]: {{site.github}}/flutter/flutter/wiki/Upgrading-pre-1.12-Android-projects
+[Upgrading pre 1.12 Android projects]: {{site.repo.flutter}}/wiki/Upgrading-pre-1.12-Android-projects
 [Supporting the new Android plugins APIs]: {{site.url}}/release/breaking-changes/plugin-api-migration
 
 ## Context
diff --git a/src/release/breaking-changes/clip-behavior.md b/src/release/breaking-changes/clip-behavior.md
index 33e01f5ad7..0346cdd9fd 100644
--- a/src/release/breaking-changes/clip-behavior.md
+++ b/src/release/breaking-changes/clip-behavior.md
@@ -177,13 +177,13 @@ Relevant PRs:
 * [PR 21703][]: Default clipBehavior of ClipRect to hardEdge
 * [PR 21826][]: Missing default hardEdge clip for ClipRectLayer
 
-[PR 5420]:  {{site.github}}/flutter/engine/pull/5420
-[PR 5647]:  {{site.github}}/flutter/engine/pull/5647
-[PR 5670]:  {{site.github}}/flutter/engine/pull/5670
-[PR 5853]:  {{site.github}}/flutter/engine/pull/5853
-[PR 5868]:  {{site.github}}/flutter/engine/pull/5868
-[PR 5952]:  {{site.github}}/flutter/engine/pull/5952
-[PR 5973]:  {{site.github}}/flutter/engine/pull/5937
+[PR 5420]:  {{site.repo.engine}}/pull/5420
+[PR 5647]:  {{site.repo.engine}}/pull/5647
+[PR 5670]:  {{site.repo.engine}}/pull/5670
+[PR 5853]:  {{site.repo.engine}}/pull/5853
+[PR 5868]:  {{site.repo.engine}}/pull/5868
+[PR 5952]:  {{site.repo.engine}}/pull/5952
+[PR 5973]:  {{site.repo.engine}}/pull/5937
 [PR 18576]: {{site.repo.flutter}}/pull/18576
 [PR 18616]: {{site.repo.flutter}}/pull/18616
 [PR 20205]: {{site.repo.flutter}}/pull/20205
diff --git a/src/release/breaking-changes/context-menus.md b/src/release/breaking-changes/context-menus.md
index 16df912bf9..0d0f497bd6 100644
--- a/src/release/breaking-changes/context-menus.md
+++ b/src/release/breaking-changes/context-menus.md
@@ -36,7 +36,7 @@ context menu widgets.
 Here's an example that shows how to add a **Send email** button to the default
 context menus whenever an email address is selected. The full code can be found
 in the samples repository in
-[email_button_page.dart]({{site.github}}/flutter/samples/blob/main/experimental/context_menus/lib/email_button_page.dart)
+[email_button_page.dart]({{site.repo.samples}}/blob/main/experimental/context_menus/lib/email_button_page.dart)
 on GitHub.
 
 ```dart
@@ -65,7 +65,7 @@ TextField(
 ```
 
 A large number of examples of different custom context menus are available
-[in the samples repo]({{site.github}}/flutter/samples/tree/main/experimental/context_menus)
+[in the samples repo]({{site.repo.samples}}/tree/main/experimental/context_menus)
 on GitHub.
 
 All related deprecated features were flagged with the deprecation warning "Use
@@ -219,7 +219,7 @@ TextField(
 
 A full example of modifying a built-in context menu action can be found in the
 samples repository in
-[modified_action_page.dart]({{site.github}}/flutter/samples/blob/main/experimental/context_menus/lib/modified_action_page.dart)
+[modified_action_page.dart]({{site.repo.samples}}/blob/main/experimental/context_menus/lib/modified_action_page.dart)
 on GitHub.
 
 ### [`buildToolbar`]({{site.api}}/flutter/widgets/TextSelectionControls/buildToolbar.html)
@@ -312,7 +312,7 @@ class _MyTextField extends StatelessWidget {
 
 A full example of building a custom context menu can be found in the samples
 repository in
-[`custom_menu_page.dart`]({{site.github}}/flutter/samples/blob/main/experimental/context_menus/lib/custom_menu_page.dart)
+[`custom_menu_page.dart`]({{site.repo.samples}}/blob/main/experimental/context_menus/lib/custom_menu_page.dart)
 on GitHub.
 
 ## Timeline
diff --git a/src/release/breaking-changes/deprecate-textscalefactor.md b/src/release/breaking-changes/deprecate-textscalefactor.md
index b5ae476e25..5a63cf349c 100644
--- a/src/release/breaking-changes/deprecate-textscalefactor.md
+++ b/src/release/breaking-changes/deprecate-textscalefactor.md
@@ -301,7 +301,7 @@ Relevant PRs:
 * [Replaces `textScaleFactor` with `TextScaler`][]
 
 
-[Android 14 nonlinear font scaling]: https://developer.android.com/about/versions/14/features#non-linear-font-scaling
+[Android 14 nonlinear font scaling]: {{site.android-dev}}/about/versions/14/features#non-linear-font-scaling
 [`TextScaler`]: {{site.api}}/flutter/painting/TextScaler-class.html
 [`MediaQuery.textScalerOf`]: {{site.api}}/flutter/widgets/MediaQuery/textScalerOf.html
 [`MediaQuery.maybeTextScalerOf`]: {{site.api}}/flutter/widgets/MediaQuery/maybeTextScalerOf.html
diff --git a/src/release/breaking-changes/dispose.md b/src/release/breaking-changes/dispose.md
index 42236bd924..faa8517a47 100644
--- a/src/release/breaking-changes/dispose.md
+++ b/src/release/breaking-changes/dispose.md
@@ -60,4 +60,4 @@ in the body of the failed method `dispose`.
 
 ## Timeline
 
-See the progress and status [in the tracking issue](https://github.com/flutter/flutter/issues/134787).
+See the progress and status [in the tracking issue]({{site.repo.flutter}}/issues/134787).
diff --git a/src/release/breaking-changes/editable-text-focus-attachment.md b/src/release/breaking-changes/editable-text-focus-attachment.md
index 9e8dd11be7..6b40b67a1a 100644
--- a/src/release/breaking-changes/editable-text-focus-attachment.md
+++ b/src/release/breaking-changes/editable-text-focus-attachment.md
@@ -112,4 +112,4 @@ Relevant PR:
 * [Move text editing Actions to EditableTextState][]
 
 [`EditableText`]: {{site.api}}/flutter/widgets/EditableText-class.html
-[Move text editing Actions to EditableTextState]: {{site.github}}/flutter/flutter/pull/90684
+[Move text editing Actions to EditableTextState]: {{site.repo.flutter}}/pull/90684
diff --git a/src/release/breaking-changes/flutter-gradle-plugin-apply.md b/src/release/breaking-changes/flutter-gradle-plugin-apply.md
new file mode 100644
index 0000000000..d4e0b413e1
--- /dev/null
+++ b/src/release/breaking-changes/flutter-gradle-plugin-apply.md
@@ -0,0 +1,207 @@
+---
+title: Deprecated imperative apply of Flutter's Gradle plugins
+description: >
+  How to migrate your Android app's Gradle build files to the new, declarative
+  format.
+---
+
+## Summary
+
+To build a Flutter app for Android, Flutter's Gradle plugins must be applied.
+Historically, this was done imperatively with Gradle's
+[legacy, imperative apply script method][].
+
+In Flutter 3.16, support has been added for applying these plugins with Gradle's
+[declarative plugins {} block][] (also called the Plugin DSL) and it is
+now the recommended approach. Since Flutter 3.16, projects generated with
+`flutter create` use the Plugin DSL to apply Gradle plugins. Projects created
+with versions of Flutter prior to 3.16 need to be migrated manually.
+
+Applying Gradle plugins using the `plugins {}` block executes the same code as
+before and should produce equivalent app binaries.
+
+To learn about advantages the new Plugin DSL syntax has over the legacy `apply`
+script syntax, see [Gradle docs][plugins block].
+
+Migrating the app ecosystem to use the new approach will also make it easier for
+Flutter team to develop Flutter's Gradle plugins, and to enable exciting new
+features in the future, such as using Kotlin instead of Groovy in Gradle
+buildscripts.
+
+## Migrate
+
+### android/settings.gradle
+
+Replace the contents of `<app-src>/android/settings.gradle` with the below,
+remembering to replace `{agpVersion}` and `{kotlinVersion}` with previously
+used values:
+
+```gradle
+pluginManagement {
+    def flutterSdkPath = {
+        def properties = new Properties()
+        file("local.properties").withInputStream { properties.load(it) }
+        def flutterSdkPath = properties.getProperty("flutter.sdk")
+        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+        return flutterSdkPath
+    }
+    settings.ext.flutterSdkPath = flutterSdkPath()
+
+    includeBuild("${settings.ext.flutterSdkPath}/packages/flutter_tools/gradle")
+
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "{agpVersion}" apply false
+    id "org.jetbrains.kotlin.android" version "{kotlinVersion}" apply false
+}
+
+include ":app"
+```
+
+If you made some changes to this file, make sure they're placed after
+`pluginManagement {}` and `plugins {}` blocks, since Gradle enforces that no
+other code may be placed before these blocks.
+
+### android/build.gradle
+
+Remove the whole `buildscript` block from `<app-src/android/build.gradle`:
+
+```diff
+-buildscript {
+-    ext.kotlin_version = '{kotlinVersion}'
+-    repositories {
+-        google()
+-        mavenCentral()
+-    }
+-
+-    dependencies {
+-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+-    }
+-}
+```
+
+Here's how that file will likely end up:
+
+```gradle
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(':app')
+}
+
+tasks.register("clean", Delete) {
+    delete rootProject.buildDir
+}
+```
+
+### android/app/build.gradle
+
+Most changes have to be made in the `<app-src>/android/app/build.gradle`. First,
+remove these 2 chunks of code that use the legacy imperative apply method:
+
+```diff
+-def flutterRoot = localProperties.getProperty('flutter.sdk')
+-if (flutterRoot == null) {
+-    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+-}
+```
+
+```diff
+-apply plugin: 'com.android.application'
+-apply plugin: 'kotlin-android'
+-apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+```
+
+Now apply the plugins again, but this time using the Plugin DSL syntax. At the
+very top of your file, add:
+
+```diff
++plugins {
++    id "com.android.application"
++    id "kotlin-android"
++    id "dev.flutter.flutter-gradle-plugin"
++}
+```
+
+### Validation
+
+Execute `flutter run` to confirm your app builds and launches on a connected
+Android device or emulator.
+
+## Examples
+
+### Google Mobile Services and Crashlytics
+
+If your app was using Google Mobile Services and Crashlytics, remove the
+following lines from `<app-src>/android/build.gradle`:
+
+```diff
+ buildscript {
+     // ...
+
+     dependencies {
+         // ...
+-        classpath "com.google.gms:google-services:4.4.0"
+-        classpath "com.google.firebase:firebase-crashlytics-gradle:2.9.9"
+     }
+ }
+```
+
+and remove these 2 lines from `<app-src>/android/app/build.gradle`:
+
+```diff
+-apply plugin: 'com.google.gms.google-services'
+-apply plugin: 'com.google.firebase.crashlytics'
+```
+
+To migrate to the new, declarative apply of the GMS and Crashlytics plugins, add
+the following lines to `<app-src>/android/settings.gradle`:
+
+```diff
+ plugins {
+     id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+     id "com.android.application" version "{agpVersion}" apply false
+     id "org.jetbrains.kotlin.android" version "{kotlinVersion}" apply false
++    id "com.google.gms.google-services" version "4.4.0" apply false
++    id "com.google.firebase.crashlytics" version "2.9.9" apply false
+ }
+```
+
+and the following lines to `<app-src>/android/app/build.gradle`:
+
+```diff
+ plugins {
+     id "com.android.application"
+     id "dev.flutter.flutter-gradle-plugin"
+     id "org.jetbrains.kotlin.android"
++    id "com.google.gms.google-services"
++    id "com.google.firebase.crashlytics"
+ }
+```
+
+## References
+
+Gradle build files generated by `flutter create` differ across Flutter versions.
+For a detailed overview, see [issue #135392][]. You should consider using the
+latest versions of build files.
+
+[legacy, imperative apply script method]: https://docs.gradle.org/8.5/userguide/plugins.html#sec:script_plugins
+[declarative plugins {} block]: https://docs.gradle.org/8.5/userguide/plugins.html#sec:plugins_block
+[plugins block]: https://docs.gradle.org/current/userguide/plugins.html#plugins_dsl_limitations
+[issue #135392]: https://github.com/flutter/flutter/issues/135392
diff --git a/src/release/breaking-changes/flutter-lints-package.md b/src/release/breaking-changes/flutter-lints-package.md
index feda189896..0e93b11230 100644
--- a/src/release/breaking-changes/flutter-lints-package.md
+++ b/src/release/breaking-changes/flutter-lints-package.md
@@ -121,7 +121,7 @@ Relevant PRs:
 * [Add flutter_lints package][]
 * [Integrate package:flutter_lints into templates][]
 
-[Add flutter_lints package]: {{site.github}}/flutter/packages/pull/343
+[Add flutter_lints package]: {{site.repo.packages}}/pull/343
 [`analysis_options_user.yaml`]: {{site.repo.flutter}}/blob/master/packages/flutter/lib/analysis_options_user.yaml
 [Customizing static analysis]: {{site.dart-site}}/guides/language/analysis-options
 [dart analyzer]: {{site.dart-site}}/guides/language/analysis-options
diff --git a/src/release/breaking-changes/index.md b/src/release/breaking-changes/index.md
index 04251b5bf7..7ac468e842 100644
--- a/src/release/breaking-changes/index.md
+++ b/src/release/breaking-changes/index.md
@@ -45,17 +45,23 @@ release, and listed in alphabetical order:
 
 [breaking change policy]: {{site.url}}/release/compatibility-policy
 [Flutter announce]: {{site.groups}}/forum/#!forum/flutter-announce
-[Dart announce]: https://groups.google.com/a/dartlang.org/g/announce
+[Dart announce]: {{site.groups}}/a/dartlang.org/g/announce
 [`dart fix`]: {{site.url}}/tools/flutter-fix
 [test registry]: {{site.github}}/flutter/tests
 
 ### Not yet released to stable
 
+* [Migrate RawKeyEvent/RawKeyboard system to KeyEvent/HardwareKeyboard system][]
 * [Deprecate `TextField.canRequestFocus`][]
 * [Accessibility traversal order of tooltip changed][]
+* [Default multitouch scrolling][]
+* [Deprecate imperative apply of Flutter's Gradle plugins][]
 
+[Migrate RawKeyEvent/RawKeyboard system to KeyEvent/HardwareKeyboard system]: {{site.url}}/release/breaking-changes/key-event-migration
 [Deprecate `TextField.canRequestFocus`]: {{site.url}}/release/breaking-changes/can-request-focus
 [Accessibility traversal order of tooltip changed]: {{site.url}}/release/breaking-changes/tooltip-semantics-order
+[Default multitouch scrolling]: {{site.url}}/release/breaking-changes/multi-touch-scrolling
+[Deprecate imperative apply of Flutter's Gradle plugins]: {{site.url}}/release/breaking-changes/flutter-gradle-plugin-apply
 
 ### Released in Flutter 3.16
 
diff --git a/src/release/breaking-changes/ios-flutterviewcontroller-splashscreenview-nullable.md b/src/release/breaking-changes/ios-flutterviewcontroller-splashscreenview-nullable.md
index 65b8ea5bd1..2636d20ea8 100644
--- a/src/release/breaking-changes/ios-flutterviewcontroller-splashscreenview-nullable.md
+++ b/src/release/breaking-changes/ios-flutterviewcontroller-splashscreenview-nullable.md
@@ -79,5 +79,5 @@ Relevant PR:
 
 * [Make splashScreenView of FlutterViewController nullable][]
 
-[Make splashScreenView of FlutterViewController nullable]: {{site.github}}/flutter/engine/pull/34743
-[PR #34743]: {{site.github}}/flutter/engine/pull/34743
+[Make splashScreenView of FlutterViewController nullable]: {{site.repo.engine}}/pull/34743
+[PR #34743]: {{site.repo.engine}}/pull/34743
diff --git a/src/release/breaking-changes/key-event-migration.md b/src/release/breaking-changes/key-event-migration.md
new file mode 100644
index 0000000000..f36430bf78
--- /dev/null
+++ b/src/release/breaking-changes/key-event-migration.md
@@ -0,0 +1,305 @@
+---
+title: Migrate RawKeyEvent/RawKeyboard system to KeyEvent/HardwareKeyboard system
+description: >-
+  The raw key event subsystem has been superseded by the key event subsystem,
+  and APIs that use RawKeyEvent and RawKeyboard are converted to KeyEvent and
+  HardwareKeyboard.
+---
+
+## Summary
+
+For some time now (years), Flutter has had two key event systems implemented.
+The new system reached parity with the old platform-specific raw key event
+system, and the raw system has been deprecated.
+
+## Context
+
+In the original key event subsystem, handling each platform's quirks in the
+framework and in client apps caused overly complex code, and the old system
+didn't properly represent the true state of key events on the system.
+
+The legacy API [`RawKeyboard`][] has been deprecated
+and will be removed in the future.
+The [`HardwareKeyboard`][] and [`KeyEvent`][] APIs replace this legacy API.
+An example of this change is [`FocusNode.onKeyEvent`][]
+replacing `FocusNode.onKey`.
+
+The behavior of [`RawKeyboard`][] provided a
+less unified and less regular event model
+than [`HardwareKeyboard`][] does.
+Consider the following examples:
+
+* Down events were not always matched with an up event, and vice versa (the set
+  of pressed keys was silently updated).
+* The logical key of the down event was not always the same as that of the up
+  event.
+* Down events and repeat events were not easily distinguishable (had to be
+  tracked manually).
+* Lock modes (such as CapsLock) only had their "enabled" state recorded. There
+  was no way to acquire their pressed state.
+
+So, the new [`KeyEvent`][]/[`HardwareKeyboard`][]-based system was born and, to
+minimize breaking changes, was implemented in parallel with the old system with
+the intention of eventually deprecating the raw system. That time has arrived,
+and application developers should migrate their code to avoid breaking changes
+that will occur when the deprecated APIs are removed.
+
+## Description of change
+
+Below are the APIs that have been deprecated.
+
+### Deprecated APIs that have an equivalent
+
+* [`Focus.onKey`][] => [`Focus.onKeyEvent`][]
+* [`FocusNode.attach`][]'s `onKey` argument => `onKeyEvent` argument
+* [`FocusNode.onKey`][] => [`FocusNode.onKeyEvent`][]
+* [`FocusOnKeyCallback`][] => [`FocusOnKeyEventCallback`][]
+* [`FocusScope.onKey`][] => [`FocusScope.onKeyEvent`][]
+* [`FocusScopeNode.onKey`][] => [`FocusScopeNode.onKeyEvent`][]
+* [`RawKeyboard`][] => [`HardwareKeyboard`][]
+* [`RawKeyboardListener`][] => [`KeyboardListener`][]
+* [`RawKeyDownEvent`][] => [`KeyDownEvent`][]
+* [`RawKeyEvent`][] => [`KeyEvent`][]
+* [`RawKeyUpEvent`][] => [`KeyUpEvent`][]
+
+### APIs that have been discontinued
+
+These APIs are no longer needed once there is only one key event system, or
+their functionality is no longer offered.
+
+* [`debugKeyEventSimulatorTransitModeOverride`][]
+* [`GLFWKeyHelper`][]
+* [`GtkKeyHelper`][]
+* [`KeyboardSide`][]
+* [`KeyDataTransitMode`][]
+* [`KeyEventManager`][]
+* [`KeyHelper`][]
+* [`KeyMessage`][]
+* [`KeyMessageHandler`][]
+* [`KeySimulatorTransitModeVariant`][]
+* [`ModifierKey`][]
+* [`RawKeyEventData`][]
+* [`RawKeyEventDataAndroid`][]
+* [`RawKeyEventDataFuchsia`][]
+* [`RawKeyEventDataIos`][]
+* [`RawKeyEventDataLinux`][]
+* [`RawKeyEventDataMacOs`][]
+* [`RawKeyEventDataWeb`][]
+* [`RawKeyEventDataWindows`][]
+* [`RawKeyEventHandler`][]
+* [`ServicesBinding.keyEventManager`][]
+
+## Migration guide
+
+The Flutter framework libraries have already been migrated.
+If your code uses any of the classes or methods listed in
+the previous section, migrate to these new APIs.
+
+### Migrating your code that uses `RawKeyEvent`
+
+For the most part, there are equivalent `KeyEvent` APIs available for all of the
+`RawKeyEvent` APIs.
+
+Some APIs relating to platform specific information contained in
+[`RawKeyEventData`][] objects or their subclasses have been removed and are no
+longer supported. One exception is that [`RawKeyEventDataAndroid.eventSource`][]
+information is accessible now as [`KeyEvent.deviceType`][] in a more
+platform independent form.
+
+#### Migrating `isKeyPressed` and related functions
+
+If the legacy code used the [`RawKeyEvent.isKeyPressed`][],
+[`RawKeyEvent.isControlPressed`][], [`RawKeyEvent.isShiftPressed`][],
+[`RawKeyEvent.isAltPressed`][], or [`RawKeyEvent.isMetaPressed`][] APIs, there
+are now equivalent functions on the [`HardwareKeyboard`][] singleton instance,
+but are not available on [KeyEvent]. [`RawKeyEvent.isKeyPressed`][] is available
+as [`HardwareKeyboard.isLogicalKeyPressed`][].
+
+Before:
+
+```dart
+KeyEventResult _handleKeyEvent(RawKeyEvent keyEvent) {
+  if (keyEvent.isControlPressed ||
+      keyEvent.isShiftPressed ||
+      keyEvent.isAltPressed ||
+      keyEvent.isMetaPressed) {
+    print('Modifier pressed: $keyEvent');
+  }
+  if (keyEvent.isKeyPressed(LogicalKeyboardKey.keyA)) {
+    print('Key A pressed.');
+  }
+  return KeyEventResult.ignored;
+}
+```
+
+After:
+
+```dart
+KeyEventResult _handleKeyEvent(KeyEvent _) {
+  if (HardwareKeyboard.instance.isControlPressed ||
+      HardwareKeyboard.instance.isShiftPressed ||
+      HardwareKeyboard.instance.isAltPressed ||
+      HardwareKeyboard.instance.isMetaPressed) {
+    print('Modifier pressed: $keyEvent');
+  }
+  if (HardwareKeyboard.instance.isLogicalKeyPressed(LogicalKeyboardKey.keyA)) {
+    print('Key A pressed.');
+  }
+  return KeyEventResult.ignored;
+}
+```
+
+#### Setting `onKey` for focus
+
+If the legacy code was using the [`Focus.onKey`][], [`FocusScope.onKey`][],
+[`FocusNode.onKey`][], or [`FocusScopeNode.onKey`][] parameters, then there is
+an equivalent [`Focus.onKeyEvent`][], [`FocusScope.onKeyEvent`][],
+[`FocusNode.onKeyEvent`][], or [`FocusScopeNode.onKeyEvent`][] parameter that
+supplies `KeyEvent`s instead of `RawKeyEvent`s.
+
+Before:
+
+```dart
+Widget build(BuildContext context) {
+  return Focus(
+    onKey: (RawKeyEvent keyEvent) {
+      print('Key event: $keyEvent');
+      return KeyEventResult.ignored;
+    }
+    child: child,
+  );
+}
+```
+
+After:
+
+```dart
+Widget build(BuildContext context) {
+  return Focus(
+    onKeyEvent: (KeyEvent keyEvent) {
+      print('Key event: $keyEvent');
+      return KeyEventResult.ignored;
+    }
+    child: child,
+  );
+}
+```
+
+#### Repeat key event handling
+
+If you were relying on the [`RawKeyEvent.repeat`][] attribute to determine if a
+key was a repeated key event, that has now been separated into a separate
+[`KeyRepeatEvent`][] type.
+
+Before:
+
+```dart
+KeyEventResult _handleKeyEvent(RawKeyEvent keyEvent) {
+  if (keyEvent is RawKeyDownEvent) {
+    print('Key down: ${keyEvent.data.logicalKey.keyLabel}(${keyEvent.repeat ? ' (repeated)' : ''})');
+  }
+  return KeyEventResult.ignored;
+}
+```
+
+After:
+
+```dart
+KeyEventResult _handleKeyEvent(KeyEvent _) {
+  if (keyEvent is KeyDownEvent || keyEvent is KeyRepeatEvent) {
+    print('Key down: ${keyEvent.logicalKey.keyLabel}(${keyEvent is KeyRepeatEvent ? ' (repeated)' : ''})');
+  }
+  return KeyEventResult.ignored;
+}
+```
+
+Though it is not a subclass of [`KeyDownEvent`][],
+a [`KeyRepeatEvent`][] is also a key down event.
+Don't assume that `keyEvent is! KeyDownEvent` only allows key up events.
+Check both `KeyDownEvent` and `KeyRepeatEvent`.
+
+## Timeline
+
+Landed in version: 3.18.0-7.0.pre<br>
+In stable release: not yet (Not in 3.18)
+
+## References
+
+Replacement API documentation:
+
+* [`Focus.onKeyEvent`][]
+* [`FocusNode.onKeyEvent`][]
+* [`FocusOnKeyEventCallback`][]
+* [`FocusScope.onKeyEvent`][]
+* [`FocusScopeNode.onKeyEvent`][]
+* [`HardwareKeyboard`][]
+* [`KeyboardListener`][]
+* [`KeyDownEvent`][]
+* [`KeyRepeatEvent`][]
+* [`KeyEvent`][]
+* [`KeyEventHandler`][]
+* [`KeyUpEvent`][]
+
+Relevant issues:
+
+* [`RawKeyEvent` and `RawKeyboard`, et al should be deprecated and removed (Issue 136419)][]
+
+Relevant PRs:
+
+* [Deprecate RawKeyEvent, et al. and exempt uses in the framework.][]
+
+[`debugKeyEventSimulatorTransitModeOverride`]: {{site.main-api}}/flutter/services/debugKeyEventSimulatorTransitModeOverride-class.html
+[`Focus.onKey`]: {{site.main-api}}/flutter/services/Focus/onKey.html
+[`FocusNode.attach`]: {{site.main-api}}/flutter/services/FocusNode/attach.html
+[`FocusNode.onKey`]: {{site.main-api}}/flutter/services/FocusNode/onKey.html
+[`FocusOnKeyCallback`]: {{site.main-api}}/flutter/services/FocusOnKeyCallback-class.html
+[`FocusScope.onKey`]: {{site.main-api}}/flutter/services/FocusScope/onKey.html
+[`FocusScopeNode.onKey`]: {{site.main-api}}/flutter/services/FocusScopeNode/onKey.html
+[`GLFWKeyHelper`]: {{site.main-api}}/flutter/services/GLFWKeyHelper-class.html
+[`GtkKeyHelper`]: {{site.main-api}}/flutter/services/GtkKeyHelper-class.html
+[`KeyboardSide`]: {{site.main-api}}/flutter/services/KeyboardSide-class.html
+[`KeyDataTransitMode`]: {{site.main-api}}/flutter/services/KeyDataTransitMode-class.html
+[`KeyEventManager`]: {{site.main-api}}/flutter/services/KeyEventManager-class.html
+[`KeyHelper`]: {{site.main-api}}/flutter/services/KeyHelper-class.html
+[`KeyMessage`]: {{site.main-api}}/flutter/services/KeyMessage-class.html
+[`KeyMessageHandler`]: {{site.main-api}}/flutter/services/KeyMessageHandler-class.html
+[`KeySimulatorTransitModeVariant`]: {{site.main-api}}/flutter/services/KeySimulatorTransitModeVariant-class.html
+[`ModifierKey`]: {{site.main-api}}/flutter/services/ModifierKey-class.html
+[`RawKeyboard`]: {{site.main-api}}/flutter/services/RawKeyboard-class.html
+[`RawKeyboardListener`]: {{site.main-api}}/flutter/services/RawKeyboardListener-class.html
+[`RawKeyDownEvent`]: {{site.main-api}}/flutter/services/RawKeyDownEvent-class.html
+[`RawKeyEvent`]: {{site.main-api}}/flutter/services/RawKeyEvent-class.html
+[`RawKeyEventData`]: {{site.main-api}}/flutter/services/RawKeyEventData-class.html
+[`RawKeyEventDataAndroid`]: {{site.main-api}}/flutter/services/RawKeyEventDataAndroid-class.html
+[`RawKeyEventDataFuchsia`]: {{site.main-api}}/flutter/services/RawKeyEventDataFuchsia-class.html
+[`RawKeyEventDataIos`]: {{site.main-api}}/flutter/services/RawKeyEventDataIos-class.html
+[`RawKeyEventDataLinux`]: {{site.main-api}}/flutter/services/RawKeyEventDataLinux-class.html
+[`RawKeyEventDataMacOs`]: {{site.main-api}}/flutter/services/RawKeyEventDataMacOs-class.html
+[`RawKeyEventDataWeb`]: {{site.main-api}}/flutter/services/RawKeyEventDataWeb-class.html
+[`RawKeyEventDataWindows`]: {{site.main-api}}/flutter/services/RawKeyEventDataWindows-class.html
+[`RawKeyEventHandler`]: {{site.main-api}}/flutter/services/RawKeyEventHandler-class.html
+[`RawKeyUpEvent`]: {{site.main-api}}/flutter/services/RawKeyUpEvent-class.html
+[`ServicesBinding.keyEventManager`]: {{site.main-api}}/flutter/services/ServicesBinding/keyEventManager.html
+[`Focus.onKeyEvent`]: {{site.main-api}}/flutter/services/Focus/onKeyEvent.html
+[`FocusNode.onKeyEvent`]: {{site.main-api}}/flutter/services/FocusNode/onKeyEvent.html
+[`FocusOnKeyEventCallback`]: {{site.main-api}}/flutter/services/FocusOnKeyEventCallback-class.html
+[`FocusScope.onKeyEvent`]: {{site.main-api}}/flutter/services/FocusScope/onKeyEvent.html
+[`FocusScopeNode.onKeyEvent`]: {{site.main-api}}/flutter/services/FocusScopeNode/onKeyEvent.html
+[`HardwareKeyboard`]: {{site.main-api}}/flutter/services/HardwareKeyboard-class.html
+[`HardwareKeyboard.isLogicalKeyPressed`]: {{site.main-api}}/flutter/services/HardwareKeyboard/isLogicalKeyPressed.html
+[`KeyboardListener`]: {{site.main-api}}/flutter/services/KeyboardListener-class.html
+[`KeyDownEvent`]: {{site.main-api}}/flutter/services/KeyDownEvent-class.html
+[`KeyRepeatEvent`]: {{site.main-api}}/flutter/services/KeyRepeatEvent-class.html
+[`KeyEvent`]: {{site.main-api}}/flutter/services/KeyEvent-class.html
+[`KeyEventHandler`]: {{site.main-api}}/flutter/services/KeyEventHandler-class.html
+[`KeyUpEvent`]: {{site.main-api}}/flutter/services/KeyUpEvent-class.html
+[`RawKeyEvent.isKeyPressed`]: {{site.main-api}}/flutter/services/RawKeyEvent/isKeyPressed.html
+[`RawKeyEvent.isControlPressed`]: {{site.main-api}}/flutter/services/RawKeyEvent/isControlPressed.html
+[`RawKeyEvent.isShiftPressed`]: {{site.main-api}}/flutter/services/RawKeyEvent/isShiftPressed.html
+[`RawKeyEvent.isAltPressed`]: {{site.main-api}}/flutter/services/RawKeyEvent/isAltPressed.html
+[`RawKeyEvent.isMetaPressed`]: {{site.main-api}}/flutter/services/RawKeyEvent/isMetaPressed.html
+[`RawKeyEvent.repeat`]: {{site.main-api}}/flutter/services/RawKeyEvent/repeat.html
+[`RawKeyEventDataAndroid.eventSource`]: {{site.main-api}}/flutter/services/RawKeyEventDataAndroid/eventSource.html
+[`KeyEvent.deviceType`]: {{site.main-api}}/flutter/services/KeyEvent/deviceType.html
+[`RawKeyEvent` and `RawKeyboard`, et al should be deprecated and removed (Issue 136419)]: {{site.repo.flutter}}/issues/136419
+[Deprecate RawKeyEvent, et al. and exempt uses in the framework.]: {{site.repo.flutter}}/pull/136677
diff --git a/src/release/breaking-changes/kotlin-version.md b/src/release/breaking-changes/kotlin-version.md
index 023018786a..4b70a5f5f9 100644
--- a/src/release/breaking-changes/kotlin-version.md
+++ b/src/release/breaking-changes/kotlin-version.md
@@ -57,6 +57,6 @@ Relevant PR:
 * [PR 29585: Display Features support][]
 
 
-[PR 29585: Display Features support]: {{site.github}}/flutter/engine/pull/29585
+[PR 29585: Display Features support]: {{site.repo.engine}}/pull/29585
 
 [1]: {{site.android-dev}}/guide/topics/large-screens/learn-about-foldables
diff --git a/src/release/breaking-changes/multi-touch-scrolling.md b/src/release/breaking-changes/multi-touch-scrolling.md
new file mode 100644
index 0000000000..ef5a14a96a
--- /dev/null
+++ b/src/release/breaking-changes/multi-touch-scrolling.md
@@ -0,0 +1,183 @@
+---
+title: Default multitouch scrolling
+description: >
+  ScrollBehaviors will now configure how Scrollables respond to multitouch
+  gestures.
+---
+
+## Summary
+
+`ScrollBehavior`s now allow or disallow scrolling speeds to be affected by the 
+number of pointers on the screen. `ScrollBehavior.multitouchDragStrategy`, by
+default, prevents multiple pointers interacting wih the scrollable at the same
+time from affecting the speed of scrolling.
+
+## Context
+
+Prior to this change, for each pointer dragging a `Scrollable` widget, the
+scroll speed would increase. This did not match platform expectations when
+interacting with Flutter applications.
+
+Now, the inherited `ScrollBehavior` manages how multiple pointers affect
+scrolling widgets as specified by `ScrollBehavior.multitouchDragStrategy`. This
+enum, `MultitouchDragStrategy`, can also be configured for the prior behavior.
+
+## Description of change
+
+This change fixed the unexpected ability to increase scroll speeds by dragging
+with more than one finger.
+
+If you have relied on the previous behavior in your application, there are
+several ways to control and configure this feature.
+
+- Extend `ScrollBehavior`, `MaterialScrollBehavior`, or `CupertinoScrollBehavior`
+  to modify the default behavior, overriding
+  `ScrollBehavior.multitouchDragStrategy`.
+
+    - With your own `ScrollBehavior`, you can apply it app-wide by setting
+      `MaterialApp.scrollBehavior` or `CupertinoApp.scrollBehavior`.
+    - Or, if you wish to only apply it to specific widgets, add a
+      `ScrollConfiguration` above the widget in question with your
+      custom `ScrollBehavior`.
+
+Your scrollable widgets then inherit and reflect this behavior.
+
+- Instead of creating your own `ScrollBehavior`, another option for changing
+  the default behavior is to copy the existing `ScrollBehavior`, and set different
+  `multitouchDragStrategy`.
+    - Create a `ScrollConfiguration` in your widget tree, and provide a modified copy
+      of the existing `ScrollBehavior` in the current context using `copyWith`.
+
+To accommodate the new configuration
+`DragGestureRecognizer` was updated to support `MultitouchDragStrategy` as well
+in other dragging contexts.
+
+## Migration guide
+
+### Setting a custom `ScrollBehavior` for your application
+
+Code before migration:
+
+```dart
+MaterialApp(
+  // ...
+);
+```
+
+Code after migration:
+
+```dart
+class MyCustomScrollBehavior extends MaterialScrollBehavior {
+  // Override behavior methods and getters like multitouchDragStrategy
+  @override
+  MultitouchDragStrategy get multitouchDragStrategy => MultitouchDragStrategy.sumAllPointers;
+}
+
+// Set ScrollBehavior for an entire application.
+MaterialApp(
+  scrollBehavior: MyCustomScrollBehavior(),
+  // ...
+);
+```
+
+### Setting a custom `ScrollBehavior` for a specific widget
+
+Code before migration:
+
+```dart
+final ScrollController controller = ScrollController();
+ListView.builder(
+  controller: controller,
+  itemBuilder: (BuildContext context, int index) {
+    return Text('Item $index');
+  },
+);
+```
+
+Code after migration:
+
+```dart
+class MyCustomScrollBehavior extends MaterialScrollBehavior {
+  // Override behavior methods and getters like multitouchDragStrategy
+  @override
+  MultitouchDragStrategy get multitouchDragStrategy => MultitouchDragStrategy.sumAllPointers;
+}
+
+// ScrollBehavior can be set for a specific widget.
+final ScrollController controller = ScrollController();
+ScrollConfiguration(
+  behavior: MyCustomScrollBehavior(),
+  child: ListView.builder(
+    controller: controller,
+    itemBuilder: (BuildContext context, int index) {
+      return Text('Item $index');
+    },
+  ),
+);
+```
+
+### Copy and modify existing `ScrollBehavior`
+
+Code before migration:
+
+```dart
+final ScrollController controller = ScrollController();
+ListView.builder(
+  controller: controller,
+  itemBuilder: (BuildContext context, int index) {
+    return Text('Item $index');
+  },
+);
+```
+
+Code after migration:
+
+```dart
+// ScrollBehavior can be copied and adjusted.
+final ScrollController controller = ScrollController();
+ScrollConfiguration(
+  behavior: ScrollConfiguration.of(context).copyWith(
+    multitouchDragStrategy: MultitouchDragStrategy.sumAllPointers,
+  ),
+  child: ListView.builder(
+    controller: controller,
+    itemBuilder: (BuildContext context, int index) {
+      return Text('Item $index');
+    },
+  ),
+);
+```
+
+## Timeline
+
+Landed in version: 3.18.0-4.0.pre<br>
+In stable release: TBD
+
+## References
+
+API documentation:
+
+* [`ScrollConfiguration`][]
+* [`ScrollBehavior`][]
+* [`MaterialScrollBehavior`][]
+* [`CupertinoScrollBehavior`][]
+* [`MultitouchDragStrategy`][]
+* [`DragGestureRecognizer`][]
+
+Relevant issue:
+
+* [Issue #11884][]
+
+Relevant PRs:
+
+* [Introduce multi-touch drag strategies for DragGestureRecognizer][]
+
+
+[`ScrollConfiguration`]: {{site.api}}/flutter/widgets/ScrollConfiguration-class.html
+[`ScrollBehavior`]: {{site.api}}/flutter/widgets/ScrollBehavior-class.html
+[`MaterialScrollBehavior`]: {{site.api}}/flutter/material/MaterialScrollBehavior-class.html
+[`CupertinoScrollBehavior`]: {{site.api}}/flutter/cupertino/CupertinoScrollBehavior-class.html
+[`MultitouchDragStrategy`]: {{site.api}}/flutter/gestures/MultitouchDragStrategy.html
+[`DragGestureRecognizer`]: {{site.api}}/flutter/gestures/DragGestureRecognizer-class.html
+[Issue #11884]: {{site.repo.flutter}}/issues/11884
+[Introduce multi-touch drag strategies for DragGestureRecognizer]: {{site.repo.flutter}}/pull/136708
diff --git a/src/release/breaking-changes/network-policy-ios-android.md b/src/release/breaking-changes/network-policy-ios-android.md
index 5d5048d866..c52e1940bf 100644
--- a/src/release/breaking-changes/network-policy-ios-android.md
+++ b/src/release/breaking-changes/network-policy-ios-android.md
@@ -121,5 +121,5 @@ Relevant PRs:
 * [PR 20218: Plumbing for setting domain network policy][]
 * [Introduce per-domain policy for strict secure connections][]
 
-[PR 20218: Plumbing for setting domain network policy]: {{site.github}}/flutter/engine/pull/20218
+[PR 20218: Plumbing for setting domain network policy]: {{site.repo.engine}}/pull/20218
 [Introduce per-domain policy for strict secure connections]: {{site.github}}/dart-lang/sdk/commit/d878cfbf20375befa09f9bf85f0ba2b87b319427
diff --git a/src/release/breaking-changes/platform-views-using-html-slots-web.md b/src/release/breaking-changes/platform-views-using-html-slots-web.md
index 7c4243253d..41b269487d 100644
--- a/src/release/breaking-changes/platform-views-using-html-slots-web.md
+++ b/src/release/breaking-changes/platform-views-using-html-slots-web.md
@@ -188,11 +188,11 @@ Relevant PRs:
 [`CSS height`]: https://developer.mozilla.org/en-US/docs/Web/CSS/height
 [`CSS width`]: https://developer.mozilla.org/en-US/docs/Web/CSS/width
 [`HtmlElementView` widgets]: {{site.api}}/flutter/widgets/HtmlElementView-class.html
-[`PlatformViewFactory` functions]: {{site.github}}/flutter/engine/blob/58459a5e342f84c755919f2ad5029b22bcddd548/lib/web_ui/lib/src/engine/platform_views/content_manager.dart#L15-L18
+[`PlatformViewFactory` functions]: {{site.repo.engine}}/blob/58459a5e342f84c755919f2ad5029b22bcddd548/lib/web_ui/lib/src/engine/platform_views/content_manager.dart#L15-L18
 [design doc]: {{site.url}}/go/web-slot-content
 [issue-80524]: {{site.repo.flutter}}/issues/80524
-[pull-25747]: {{site.github}}/flutter/engine/pull/25747
-[pull-364]: {{site.github}}/flutter/packages/pull/364
+[pull-25747]: {{site.repo.engine}}/pull/25747
+[pull-364]: {{site.repo.packages}}/pull/364
 [pull-3964]: {{site.github}}/flutter/plugins/pull/3964
 [pull-82926]: {{site.repo.flutter}}/pull/82926
 [shadow root]: https://developer.mozilla.org/en-US/docs/Web/API/ShadowRoot
diff --git a/src/release/breaking-changes/plugin-api-migration.md b/src/release/breaking-changes/plugin-api-migration.md
index 74c2e3c7f7..4dabe1146b 100644
--- a/src/release/breaking-changes/plugin-api-migration.md
+++ b/src/release/breaking-changes/plugin-api-migration.md
@@ -502,5 +502,5 @@ a non-UI configuration.
 [`PluginRegistry.Registrar`]: {{site.api}}/javadoc/io/flutter/plugin/common/PluginRegistry.Registrar.html
 [`PluginRegistry.Registrar.activity()`]: {{site.api}}/javadoc/io/flutter/plugin/common/PluginRegistry.Registrar.html#activity--
 [`ServiceAware`]: {{site.api}}/javadoc/io/flutter/embedding/engine/plugins/service/ServiceAware.html
-[Upgrading pre 1.12 Android projects]: {{site.github}}/flutter/flutter/wiki/Upgrading-pre-1.12-Android-projects
+[Upgrading pre 1.12 Android projects]: {{site.repo.flutter}}/wiki/Upgrading-pre-1.12-Android-projects
 [verified publisher]: {{site.dart-site}}/tools/pub/verified-publishers
diff --git a/src/release/breaking-changes/scribble-text-input-client.md b/src/release/breaking-changes/scribble-text-input-client.md
index 6680f2dc8a..7ad13c1561 100644
--- a/src/release/breaking-changes/scribble-text-input-client.md
+++ b/src/release/breaking-changes/scribble-text-input-client.md
@@ -85,7 +85,7 @@ API documentation:
 
 Relevant issues:
 
-* [Issue 61278]({{site.github}}/flutter/flutter/issues/61278)
+* [Issue 61278]({{site.repo.flutter}}/issues/61278)
 
 Relevant PRs:
 
@@ -93,6 +93,6 @@ Relevant PRs:
 * [75472: Support Scribble Handwriting][]
 * [97437: Re-land Support Scribble Handwriting][]
 
-[24224: Support Scribble Handwriting (engine)]: {{site.github}}/flutter/engine/pull/24224
-[97437: Re-land Support Scribble Handwriting]: {{site.github}}/flutter/flutter/pull/97437
-[75472: Support Scribble Handwriting]: {{site.github}}/flutter/flutter/pull/75472
+[24224: Support Scribble Handwriting (engine)]: {{site.repo.engine}}/pull/24224
+[97437: Re-land Support Scribble Handwriting]: {{site.repo.flutter}}/pull/97437
+[75472: Support Scribble Handwriting]: {{site.repo.flutter}}/pull/75472
diff --git a/src/release/breaking-changes/windows-build-architecture.md b/src/release/breaking-changes/windows-build-architecture.md
index 2a104da51c..58d9c0fbb1 100644
--- a/src/release/breaking-changes/windows-build-architecture.md
+++ b/src/release/breaking-changes/windows-build-architecture.md
@@ -40,7 +40,7 @@ Example build path after the migration if targeting Arm64:
 build\windows\arm64\runner\Release\hello_world.exe
 ```
 
-If you use [`package:msix`][], update to version 3.15.0 or newer.
+If you use [`package:msix`][], update to version 3.16.7 or newer.
 
 [`package:msix`]: {{site.pub-pkg}}/msix
 
@@ -60,4 +60,4 @@ Relevant pull requests:
 * [Introduce architecture subdirectory for Windows build][]
 
 [flutter.dev/go/windows-arm64]: {{site.main-url}}/go/windows-arm64
-[Introduce architecture subdirectory for Windows build]: {{site.github}}/flutter/flutter/pull/131843
+[Introduce architecture subdirectory for Windows build]: {{site.repo.flutter}}/pull/131843
diff --git a/src/release/breaking-changes/windows-dark-mode.md b/src/release/breaking-changes/windows-dark-mode.md
index 9846ae8f13..723f390f10 100644
--- a/src/release/breaking-changes/windows-dark-mode.md
+++ b/src/release/breaking-changes/windows-dark-mode.md
@@ -41,5 +41,5 @@ Flutter SDK
 [Flutter Gallery][] app.
 
 [run loop migration guide]: {{site.url}}/release/breaking-changes/windows-run-loop
-[PR 862]: {{site.github}}/flutter/gallery/pull/862/files
-[Flutter Gallery]: https://gallery.flutter.dev/
\ No newline at end of file
+[PR 862]: {{site.repo.gallery}}/pull/862/files
+[Flutter Gallery]: {{site.gallery}}
\ No newline at end of file
diff --git a/src/release/breaking-changes/windows-show-window-migration.md b/src/release/breaking-changes/windows-show-window-migration.md
index 678a60295e..0f9b989931 100644
--- a/src/release/breaking-changes/windows-show-window-migration.md
+++ b/src/release/breaking-changes/windows-show-window-migration.md
@@ -7,7 +7,7 @@ Flutter 3.13 fixed a [bug][] that could result in the window not being shown.
 Windows projects created using Flutter 3.7 or Flutter 3.10 need to be migrated
 to fix this issue.
 
-[bug]: {{site.github}}/flutter/flutter/issues/119415
+[bug]: {{site.repo.flutter}}/issues/119415
 
 ## Migration steps
 
@@ -47,5 +47,5 @@ flutter_controller_->ForceRedraw();
 [PR 995][] shows the migration work for the
 [Flutter Gallery][] app.
 
-[PR 995]: {{site.github}}/flutter/gallery/pull/995/files
-[Flutter Gallery]: https://gallery.flutter.dev/
\ No newline at end of file
+[PR 995]: {{site.repo.gallery}}/pull/995/files
+[Flutter Gallery]: {{site.gallery}}
\ No newline at end of file
diff --git a/src/release/breaking-changes/windows-version-information.md b/src/release/breaking-changes/windows-version-information.md
index 66970695fa..cd626acf70 100644
--- a/src/release/breaking-changes/windows-version-information.md
+++ b/src/release/breaking-changes/windows-version-information.md
@@ -85,5 +85,5 @@ Your project can be updated using these steps:
 
 [Build and release a Windows app]: {{site.url}}/deployment/windows#updating-the-apps-version-number
 [run loop migration guide]: {{site.url}}/release/breaking-changes/windows-run-loop
-[PR 721]: {{site.github}}/flutter/gallery/pull/721/files
-[Flutter Gallery]: https://gallery.flutter.dev/
\ No newline at end of file
+[PR 721]: {{site.repo.gallery}}/pull/721/files
+[Flutter Gallery]: {{site.gallery}}
\ No newline at end of file
diff --git a/src/release/compatibility-policy.md b/src/release/compatibility-policy.md
index dc916ca2d2..8027bb8680 100644
--- a/src/release/compatibility-policy.md
+++ b/src/release/compatibility-policy.md
@@ -109,4 +109,4 @@ migration guide.
 这一类的改动不一定会被写入迁移指南。
 
 [separate breaking-change policy]: {{site.github}}/dart-lang/sdk/blob/main/docs/process/breaking-changes.md
-[Dart announce]: https://groups.google.com/a/dartlang.org/g/announce
+[Dart announce]: {{site.groups}}/a/dartlang.org/g/announce
diff --git a/src/release/release-notes/release-notes-1.12.13.md b/src/release/release-notes/release-notes-1.12.13.md
index 40096a474a..f39f26faf4 100644
--- a/src/release/release-notes/release-notes-1.12.13.md
+++ b/src/release/release-notes/release-notes-1.12.13.md
@@ -51,68 +51,68 @@ The following list includes breaking changes in this release.
 Please see the related announcements so that you can move
 forward with your code.
 
-[37024]({{site.github}}/flutter/flutter/pull/37024) [Implement PageView using SliverLayoutBuilder, Deprecate RenderSliverFillViewport](https://groups.google.com/g/flutter-announce/c/1CUo2GCjrD4/m/VGKsyVirFQAJ)
+[37024]({{site.repo.flutter}}/pull/37024) [Implement PageView using SliverLayoutBuilder, Deprecate RenderSliverFillViewport](https://groups.google.com/g/flutter-announce/c/1CUo2GCjrD4/m/VGKsyVirFQAJ)
 
-[37739]({{site.github}}/flutter/flutter/pull/37739) [Fix AnimationStatus for repeat(reverse: true) and animateWith](https://groups.google.com/g/flutter-announce/c/yYqqt4Z5IIo/m/3wRYBwSQEwAJ)
+[37739]({{site.repo.flutter}}/pull/37739) [Fix AnimationStatus for repeat(reverse: true) and animateWith](https://groups.google.com/g/flutter-announce/c/yYqqt4Z5IIo/m/3wRYBwSQEwAJ)
 
-[37896]({{site.github}}/flutter/flutter/pull/37896) [Add opacity control to MouseRegion. Add findAnnotations to Layer.](https://groups.google.com/g/flutter-announce/c/GHSNLpjzmPw/m/ozNXwdbHDwAJ)
+[37896]({{site.repo.flutter}}/pull/37896) [Add opacity control to MouseRegion. Add findAnnotations to Layer.](https://groups.google.com/g/flutter-announce/c/GHSNLpjzmPw/m/ozNXwdbHDwAJ)
 
-[38481]({{site.github}}/flutter/flutter/pull/38481) [Timer picker fidelity revision](https://groups.google.com/g/flutter-announce/c/cSwtxCpWWEU/m/LtZS9g6eAgAJ)
+[38481]({{site.repo.flutter}}/pull/38481) [Timer picker fidelity revision](https://groups.google.com/g/flutter-announce/c/cSwtxCpWWEU/m/LtZS9g6eAgAJ)
 
-[38568]({{site.github}}/flutter/flutter/pull/38568) [Normalize assert checking of clipBehavior](https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!searchin/flutter-announce/clipBehavior%7Csort:date/flutter-announce/VJaYV9R9usU/_mV1GV25DwAJ)
+[38568]({{site.repo.flutter}}/pull/38568) [Normalize assert checking of clipBehavior](https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!searchin/flutter-announce/clipBehavior%7Csort:date/flutter-announce/VJaYV9R9usU/_mV1GV25DwAJ)
 
-[39079]({{site.github}}/flutter/flutter/pull/39079) [fix widget built twice during warm up frame](https://groups.google.com/g/flutter-announce/c/m6ewfoO64mI/m/ziD4VmwUBQAJ)
+[39079]({{site.repo.flutter}}/pull/39079) [fix widget built twice during warm up frame](https://groups.google.com/g/flutter-announce/c/m6ewfoO64mI/m/ziD4VmwUBQAJ)
 
-[39440]({{site.github}}/flutter/flutter/pull/39440) [Allow gaps in the initial route](https://groups.google.com/g/flutter-announce/c/ysFSO3eScbs/m/GzPFkLuvAQAJ)
+[39440]({{site.repo.flutter}}/pull/39440) [Allow gaps in the initial route](https://groups.google.com/g/flutter-announce/c/ysFSO3eScbs/m/GzPFkLuvAQAJ)
 
-[39919]({{site.github}}/flutter/flutter/pull/39919) [CupertinoDatePicker & CupertinoTimerPicker dark mode](https://groups.google.com/g/flutter-announce/c/0DAdg-k_jDw/m/DUGLDQagAAAJ)
+[39919]({{site.repo.flutter}}/pull/39919) [CupertinoDatePicker & CupertinoTimerPicker dark mode](https://groups.google.com/g/flutter-announce/c/0DAdg-k_jDw/m/DUGLDQagAAAJ)
 
-[40166]({{site.github}}/flutter/flutter/pull/40166) [Added proper focus handling when pushing and popping routes](https://groups.google.com/g/flutter-announce/c/BjPKnOw5jzU/m/Ev-gUJ_VAwAJ)
+[40166]({{site.repo.flutter}}/pull/40166) [Added proper focus handling when pushing and popping routes](https://groups.google.com/g/flutter-announce/c/BjPKnOw5jzU/m/Ev-gUJ_VAwAJ)
 
-[40179]({{site.github}}/flutter/flutter/pull/40179) [Update PopupMenu layout](https://groups.google.com/g/flutter-announce/c/UlK3y9HWyBg/m/Dybr660DAAAJ)
+[40179]({{site.repo.flutter}}/pull/40179) [Update PopupMenu layout](https://groups.google.com/g/flutter-announce/c/UlK3y9HWyBg/m/Dybr660DAAAJ)
 
-[40566]({{site.github}}/flutter/flutter/pull/40566) [Remove CupertinoSystemColors in favor of CupertinoColors](https://groups.google.com/g/flutter-announce/c/pMYPTvjWCX4/m/UiocKCk0AQAJ)
+[40566]({{site.repo.flutter}}/pull/40566) [Remove CupertinoSystemColors in favor of CupertinoColors](https://groups.google.com/g/flutter-announce/c/pMYPTvjWCX4/m/UiocKCk0AQAJ)
 
-[40690]({{site.github}}/flutter/flutter/pull/40690) [CupertinoPageScaffold dark mode](https://groups.google.com/g/flutter-announce/c/r_2xpmKiLj4/m/-myr4ZRPAAAJ)
+[40690]({{site.repo.flutter}}/pull/40690) [CupertinoPageScaffold dark mode](https://groups.google.com/g/flutter-announce/c/r_2xpmKiLj4/m/-myr4ZRPAAAJ)
 
-[41220]({{site.github}}/flutter/flutter/pull/41220) [Add an ActivateAction to controls that use InkWell.](https://groups.google.com/g/flutter-announce/c/oLsxPDDRc6s/m/oCtHP3ejAAAJ)
+[41220]({{site.repo.flutter}}/pull/41220) [Add an ActivateAction to controls that use InkWell.](https://groups.google.com/g/flutter-announce/c/oLsxPDDRc6s/m/oCtHP3ejAAAJ)
 
-[41857 Change the dark theme elevation overlay to use the colorScheme.onSurface]({{site.github}}/flutter/flutter/pull/41857)
+[41857 Change the dark theme elevation overlay to use the colorScheme.onSurface]({{site.repo.flutter}}/pull/41857)
 
-[42449]({{site.github}}/flutter/flutter/pull/42449) [Increase TextField's minimum height from 40 to 48](https://groups.google.com/g/flutter-announce/c/RDyeXZK0fO8/m/rdkBzgw4DgAJ)
+[42449]({{site.repo.flutter}}/pull/42449) [Increase TextField's minimum height from 40 to 48](https://groups.google.com/g/flutter-announce/c/RDyeXZK0fO8/m/rdkBzgw4DgAJ)
 
-[42470]({{site.github}}/flutter/flutter/pull/42470) [No multiline password fields](https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/flutter-announce/Ken8TY_QiuY/qxJF2ugyBQAJ)
+[42470]({{site.repo.flutter}}/pull/42470) [No multiline password fields](https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/flutter-announce/Ken8TY_QiuY/qxJF2ugyBQAJ)
 
-[42479]({{site.github}}/flutter/flutter/pull/42479) [Make DropdownButton's disabledHint and hint behavior consistent](https://groups.google.com/g/flutter-announce/c/yHIl-zEXm5c/m/abpgrXuHDgAJ)
+[42479]({{site.repo.flutter}}/pull/42479) [Make DropdownButton's disabledHint and hint behavior consistent](https://groups.google.com/g/flutter-announce/c/yHIl-zEXm5c/m/abpgrXuHDgAJ)
 
-[45135]({{site.github}}/flutter/flutter/pull/45135) [Add option to delay rendering the first frame](https://groups.google.com/g/flutter-announce/c/kBf4cXjD2y4/m/lg19fDnaAgAJ)
+[45135]({{site.repo.flutter}}/pull/45135) [Add option to delay rendering the first frame](https://groups.google.com/g/flutter-announce/c/kBf4cXjD2y4/m/lg19fDnaAgAJ)
 
 
 ## Severe crash & performance bugs
 
 In every stable release, we make an effort to improve the quality of Flutter. In 1.12, we fixed several severe issues; this includes the following  crashes and performance issues.
 
-[40009]({{site.github}}/flutter/flutter/pull/40009) Add null check to _IndicatorPainter._tabOffsetsEqual() to prevent crash
+[40009]({{site.repo.flutter}}/pull/40009) Add null check to _IndicatorPainter._tabOffsetsEqual() to prevent crash
 
-[40263]({{site.github}}/flutter/flutter/pull/40263) Fix crash on vswhere search from flutter doctor
+[40263]({{site.repo.flutter}}/pull/40263) Fix crash on vswhere search from flutter doctor
 
-[40786]({{site.github}}/flutter/flutter/pull/40786) Fix crash on vswhere query on missing installations
+[40786]({{site.repo.flutter}}/pull/40786) Fix crash on vswhere query on missing installations
 
-[42342]({{site.github}}/flutter/flutter/pull/42342) Fix DropdownButton crash when hint and selectedItemBuilder are simultaneously defined
+[42342]({{site.repo.flutter}}/pull/42342) Fix DropdownButton crash when hint and selectedItemBuilder are simultaneously defined
 
-[44610]({{site.github}}/flutter/flutter/pull/44610) Error Message for createState assertion
+[44610]({{site.repo.flutter}}/pull/44610) Error Message for createState assertion
 
-[38814]({{site.github}}/flutter/flutter/pull/38814) Add iOS backdrop filter benchmarks
+[38814]({{site.repo.flutter}}/pull/38814) Add iOS backdrop filter benchmarks
 
-[38821]({{site.github}}/flutter/flutter/pull/38821) Cache caret parameters
+[38821]({{site.repo.flutter}}/pull/38821) Cache caret parameters
 
-[38861]({{site.github}}/flutter/flutter/pull/38861) Replace deprecated onReportTimings w/ frameTimings
+[38861]({{site.repo.flutter}}/pull/38861) Replace deprecated onReportTimings w/ frameTimings
 
-[39439]({{site.github}}/flutter/flutter/pull/39439) Measure iOS CPU/GPU percentage
+[39439]({{site.repo.flutter}}/pull/39439) Measure iOS CPU/GPU percentage
 
-[43676]({{site.github}}/flutter/flutter/pull/43676) Allow multiple TimingsCallbacks
+[43676]({{site.repo.flutter}}/pull/43676) Allow multiple TimingsCallbacks
 
-[45050]({{site.github}}/flutter/flutter/pull/45050) Add a perf test for picture raster cache
+[45050]({{site.repo.flutter}}/pull/45050) Add a perf test for picture raster cache
 
 
 ## New features
@@ -123,29 +123,29 @@ widget, the
 [SliverAnimatedList]({{site.api}}/flutter/widgets/SliverAnimatedList-class.html),
 and the ability to configure a stretch effect for a SliverAppBar.
 
-[37416]({{site.github}}/flutter/flutter/pull/37416) Add MediaQuery.systemGestureInsets to support Android Q
+[37416]({{site.repo.flutter}}/pull/37416) Add MediaQuery.systemGestureInsets to support Android Q
 
-[39857]({{site.github}}/flutter/flutter/pull/39857) Update ToggleButtons constraints default and add new constraints parameter
+[39857]({{site.repo.flutter}}/pull/39857) Update ToggleButtons constraints default and add new constraints parameter
 
-[40161]({{site.github}}/flutter/flutter/pull/40161) Add fullscreenDialog argument in PageRouteBuilder
+[40161]({{site.repo.flutter}}/pull/40161) Add fullscreenDialog argument in PageRouteBuilder
 
-[40461]({{site.github}}/flutter/flutter/pull/40461) Implement DropdownButton.selectedItemBuilder
+[40461]({{site.repo.flutter}}/pull/40461) Implement DropdownButton.selectedItemBuilder
 
-[41415]({{site.github}}/flutter/flutter/pull/41415) Expose API for resizing image caches
+[41415]({{site.repo.flutter}}/pull/41415) Expose API for resizing image caches
 
-[42250]({{site.github}}/flutter/flutter/pull/42250) SliverAppBar - Configurable overscroll stretch with callback feature & FlexibleSpaceBar support
+[42250]({{site.repo.flutter}}/pull/42250) SliverAppBar - Configurable overscroll stretch with callback feature & FlexibleSpaceBar support
 
-[42485]({{site.github}}/flutter/flutter/pull/42485) Re-landing SliverAnimatedList.
+[42485]({{site.repo.flutter}}/pull/42485) Re-landing SliverAnimatedList.
 
-[42842]({{site.github}}/flutter/flutter/pull/42842) Add "navigator" option to "showDialog" and "showGeneralDialog"
+[42842]({{site.repo.flutter}}/pull/42842) Add "navigator" option to "showDialog" and "showGeneralDialog"
 
-[43286]({{site.github}}/flutter/flutter/pull/43286) FadeInImage cacheWidth and cacheHeight support
+[43286]({{site.repo.flutter}}/pull/43286) FadeInImage cacheWidth and cacheHeight support
 
-[44289]({{site.github}}/flutter/flutter/pull/44289) SliverOpacity
+[44289]({{site.repo.flutter}}/pull/44289) SliverOpacity
 
-[45127]({{site.github}}/flutter/flutter/pull/45127) SliverIgnorePointer
+[45127]({{site.repo.flutter}}/pull/45127) SliverIgnorePointer
 
-[45432]({{site.github}}/flutter/flutter/pull/45432) Use RenderSliverPadding to inset SliverFillViewport
+[45432]({{site.repo.flutter}}/pull/45432) Use RenderSliverPadding to inset SliverFillViewport
 
 
 ## iOS support
@@ -160,149 +160,149 @@ and made improvements to segmented control widgets,
 [CupertinoAlertDialog]({{site.api}}/flutter/cupertino/CupertinoAlertDialog-class.html),
 and [CupertinoDatePicker]({{site.api}}/flutter/cupertino/CupertinoDatePicker-class.html)
 
-[36871]({{site.github}}/flutter/flutter/pull/36871) Audit use of defaultTargetPlatform
+[36871]({{site.repo.flutter}}/pull/36871) Audit use of defaultTargetPlatform
 
-[37719]({{site.github}}/flutter/flutter/pull/37719) CupertinoDynamicColor and friends
+[37719]({{site.repo.flutter}}/pull/37719) CupertinoDynamicColor and friends
 
-[38712]({{site.github}}/flutter/flutter/pull/38712) Show process error when iOS install fails
+[38712]({{site.repo.flutter}}/pull/38712) Show process error when iOS install fails
 
-[39056]({{site.github}}/flutter/flutter/pull/39056) Fixed issues with Background Color #34741
+[39056]({{site.repo.flutter}}/pull/39056) Fixed issues with Background Color #34741
 
-[39215]({{site.github}}/flutter/flutter/pull/39215) CupertinoActionSheet dark mode & fidelity
+[39215]({{site.repo.flutter}}/pull/39215) CupertinoActionSheet dark mode & fidelity
 
-[39289]({{site.github}}/flutter/flutter/pull/39289) CupertinoActivityIndicator & CupertinoApp dark mode
+[39289]({{site.repo.flutter}}/pull/39289) CupertinoActivityIndicator & CupertinoApp dark mode
 
-[39430]({{site.github}}/flutter/flutter/pull/39430) make CupertinoDynamicColor const constructible
+[39430]({{site.repo.flutter}}/pull/39430) make CupertinoDynamicColor const constructible
 
-[39463]({{site.github}}/flutter/flutter/pull/39463) Update validation to support Xcode11 version
+[39463]({{site.repo.flutter}}/pull/39463) Update validation to support Xcode11 version
 
-[39585]({{site.github}}/flutter/flutter/pull/39585) remove fallback code for ios/usb artifacts
+[39585]({{site.repo.flutter}}/pull/39585) remove fallback code for ios/usb artifacts
 
-[39590]({{site.github}}/flutter/flutter/pull/39590) Fix user gesture in CupertinoPageRoute
+[39590]({{site.repo.flutter}}/pull/39590) Fix user gesture in CupertinoPageRoute
 
-[39765]({{site.github}}/flutter/flutter/pull/39765) CupertinoButton & Bottom tab bar dark mode
+[39765]({{site.repo.flutter}}/pull/39765) CupertinoButton & Bottom tab bar dark mode
 
-[39927]({{site.github}}/flutter/flutter/pull/39927) Make CupertinoDynamicColor.resolve return null when given a null color
+[39927]({{site.repo.flutter}}/pull/39927) Make CupertinoDynamicColor.resolve return null when given a null color
 
-[40007]({{site.github}}/flutter/flutter/pull/40007) CupertinoAlertDialog dark mode & CupertinoActionSheet fidelity
+[40007]({{site.repo.flutter}}/pull/40007) CupertinoAlertDialog dark mode & CupertinoActionSheet fidelity
 
-[40100]({{site.github}}/flutter/flutter/pull/40100) Fix a problem with disposing of focus nodes in tab scaffold
+[40100]({{site.repo.flutter}}/pull/40100) Fix a problem with disposing of focus nodes in tab scaffold
 
-[40189]({{site.github}}/flutter/flutter/pull/40189) Dark mode CupertinoNavigationBar
+[40189]({{site.repo.flutter}}/pull/40189) Dark mode CupertinoNavigationBar
 
-[40447]({{site.github}}/flutter/flutter/pull/40447) Implement mdns for flutter run
+[40447]({{site.repo.flutter}}/pull/40447) Implement mdns for flutter run
 
-[40454]({{site.github}}/flutter/flutter/pull/40454) Dark Mode R: Refresh Control
+[40454]({{site.repo.flutter}}/pull/40454) Dark Mode R: Refresh Control
 
-[40466]({{site.github}}/flutter/flutter/pull/40466) ModalRoutes ignore input when a (cupertino) pop transition is underway
+[40466]({{site.repo.flutter}}/pull/40466) ModalRoutes ignore input when a (cupertino) pop transition is underway
 
-[40864]({{site.github}}/flutter/flutter/pull/40864) Move iOS and Android gitignore rules into folders
+[40864]({{site.repo.flutter}}/pull/40864) Move iOS and Android gitignore rules into folders
 
-[41326]({{site.github}}/flutter/flutter/pull/41326) Exception when selecting in TextField
+[41326]({{site.repo.flutter}}/pull/41326) Exception when selecting in TextField
 
-[41355]({{site.github}}/flutter/flutter/pull/41355) fix bad indentations(mainly around collection literals)
+[41355]({{site.repo.flutter}}/pull/41355) fix bad indentations(mainly around collection literals)
 
-[41384]({{site.github}}/flutter/flutter/pull/41384) [flutter_tools] Report iOS mDNS lookup failures to analytics
+[41384]({{site.repo.flutter}}/pull/41384) [flutter_tools] Report iOS mDNS lookup failures to analytics
 
-[41431]({{site.github}}/flutter/flutter/pull/41431) Cupertino { TabScafold, TextSelection, TextField } dark mode & minor fidelity update
+[41431]({{site.repo.flutter}}/pull/41431) Cupertino { TabScafold, TextSelection, TextField } dark mode & minor fidelity update
 
-[41473]({{site.github}}/flutter/flutter/pull/41473) Missing trailing commas
+[41473]({{site.repo.flutter}}/pull/41473) Missing trailing commas
 
-[41482]({{site.github}}/flutter/flutter/pull/41482) [flutter_tool] Add analytics events for ios-mdns fallback success/failure
+[41482]({{site.repo.flutter}}/pull/41482) [flutter_tool] Add analytics events for ios-mdns fallback success/failure
 
-[41644]({{site.github}}/flutter/flutter/pull/41644) indent formal parameters correctly
+[41644]({{site.repo.flutter}}/pull/41644) indent formal parameters correctly
 
-[41799]({{site.github}}/flutter/flutter/pull/41799) Improved ios 13 scrollbar fidelity
+[41799]({{site.repo.flutter}}/pull/41799) Improved ios 13 scrollbar fidelity
 
-[41828]({{site.github}}/flutter/flutter/pull/41828) Set DEFINES_MODULE=YES in plugin templates
+[41828]({{site.repo.flutter}}/pull/41828) Set DEFINES_MODULE=YES in plugin templates
 
-[41892]({{site.github}}/flutter/flutter/pull/41892) Fix CupertinoActivityIndicator radius
+[41892]({{site.repo.flutter}}/pull/41892) Fix CupertinoActivityIndicator radius
 
-[42025]({{site.github}}/flutter/flutter/pull/42025) Localization refresh
+[42025]({{site.repo.flutter}}/pull/42025) Localization refresh
 
-[42032]({{site.github}}/flutter/flutter/pull/42032) Update CupertinoActivityIndicator colors and gradient
+[42032]({{site.repo.flutter}}/pull/42032) Update CupertinoActivityIndicator colors and gradient
 
-[42533]({{site.github}}/flutter/flutter/pull/42533) Disable arrow key focus navigation for text fields
+[42533]({{site.repo.flutter}}/pull/42533) Disable arrow key focus navigation for text fields
 
-[42550]({{site.github}}/flutter/flutter/pull/42550) Add enableSuggestions flag to TextField and TextFormField
+[42550]({{site.repo.flutter}}/pull/42550) Add enableSuggestions flag to TextField and TextFormField
 
-[42563]({{site.github}}/flutter/flutter/pull/42563) Adding thumb color customization functionality to CupertinoSlider
+[42563]({{site.repo.flutter}}/pull/42563) Adding thumb color customization functionality to CupertinoSlider
 
-[42602]({{site.github}}/flutter/flutter/pull/42602) Properly throw FlutterError when route builder returns null on CupertinoPageRoute
+[42602]({{site.repo.flutter}}/pull/42602) Properly throw FlutterError when route builder returns null on CupertinoPageRoute
 
-[42775]({{site.github}}/flutter/flutter/pull/42775) CupertinoSlidingSegmentedControl
+[42775]({{site.repo.flutter}}/pull/42775) CupertinoSlidingSegmentedControl
 
-[42790]({{site.github}}/flutter/flutter/pull/42790) This disables the up/down arrow focus navigation in text fields in a different way.
+[42790]({{site.repo.flutter}}/pull/42790) This disables the up/down arrow focus navigation in text fields in a different way.
 
-[42924]({{site.github}}/flutter/flutter/pull/42924) CupertinoDialogAction is missing super call
+[42924]({{site.repo.flutter}}/pull/42924) CupertinoDialogAction is missing super call
 
-[42964]({{site.github}}/flutter/flutter/pull/42964) Use PRODUCT_BUNDLE_IDENTIFIER from buildSettings to find correct bundle id on iOS when using flavors
+[42964]({{site.repo.flutter}}/pull/42964) Use PRODUCT_BUNDLE_IDENTIFIER from buildSettings to find correct bundle id on iOS when using flavors
 
-[42967]({{site.github}}/flutter/flutter/pull/42967) Pad CupertinoAlertDialog with MediaQuery viewInsets
+[42967]({{site.repo.flutter}}/pull/42967) Pad CupertinoAlertDialog with MediaQuery viewInsets
 
-[43918]({{site.github}}/flutter/flutter/pull/43918) CupertinoContextMenu (iOS 13)
+[43918]({{site.repo.flutter}}/pull/43918) CupertinoContextMenu (iOS 13)
 
-[43932]({{site.github}}/flutter/flutter/pull/43932) Update CupertinoSlidingSegmentedControl control/feedback mechanism
+[43932]({{site.repo.flutter}}/pull/43932) Update CupertinoSlidingSegmentedControl control/feedback mechanism
 
-[44149]({{site.github}}/flutter/flutter/pull/44149) Apply minimumDate & maximumDate constraints in CupertinoDatePicker date mode
+[44149]({{site.repo.flutter}}/pull/44149) Apply minimumDate & maximumDate constraints in CupertinoDatePicker date mode
 
-[44391]({{site.github}}/flutter/flutter/pull/44391) Segmented control quick double tap fix
+[44391]({{site.repo.flutter}}/pull/44391) Segmented control quick double tap fix
 
-[44551]({{site.github}}/flutter/flutter/pull/44551) Remove new unused elements
+[44551]({{site.repo.flutter}}/pull/44551) Remove new unused elements
 
-[44743]({{site.github}}/flutter/flutter/pull/44743) Sort Localization generation output
+[44743]({{site.repo.flutter}}/pull/44743) Sort Localization generation output
 
-[44870]({{site.github}}/flutter/flutter/pull/44870) Add -runFirstLaunch hint text
+[44870]({{site.repo.flutter}}/pull/44870) Add -runFirstLaunch hint text
 
-[45124]({{site.github}}/flutter/flutter/pull/45124) Analyze dartpad
+[45124]({{site.repo.flutter}}/pull/45124) Analyze dartpad
 
-[11350]({{site.github}}/flutter/engine/pull/11350) Firebase test for Platform Views on iOS
+[11350]({{site.repo.engine}}/pull/11350) Firebase test for Platform Views on iOS
 
-[11390]({{site.github}}/flutter/engine/pull/11390) preventDefault on touchend to show iOS keyboard
+[11390]({{site.repo.engine}}/pull/11390) preventDefault on touchend to show iOS keyboard
 
-[11413]({{site.github}}/flutter/engine/pull/11413) Ios simulator unittests seem to not consider the full compilation unit
+[11413]({{site.repo.engine}}/pull/11413) Ios simulator unittests seem to not consider the full compilation unit
 
-[11530]({{site.github}}/flutter/engine/pull/11530) Optionally strip bitcode when creating ios framework
+[11530]({{site.repo.engine}}/pull/11530) Optionally strip bitcode when creating ios framework
 
-[11652]({{site.github}}/flutter/engine/pull/11652) iOS platform view mutation XCUITests
+[11652]({{site.repo.engine}}/pull/11652) iOS platform view mutation XCUITests
 
-[11802]({{site.github}}/flutter/engine/pull/11802) Adjust iOS frame start times to match the platform info
+[11802]({{site.repo.engine}}/pull/11802) Adjust iOS frame start times to match the platform info
 
-[11807]({{site.github}}/flutter/engine/pull/11807) Fix deleting Thai vowel bug on iOS
+[11807]({{site.repo.engine}}/pull/11807) Fix deleting Thai vowel bug on iOS
 
-[11817]({{site.github}}/flutter/engine/pull/11817) Smooth out iOS irregular input events delivery
+[11817]({{site.repo.engine}}/pull/11817) Smooth out iOS irregular input events delivery
 
-[11886]({{site.github}}/flutter/engine/pull/11886) remove extra redundant channels setup in iOS embedding engine
+[11886]({{site.repo.engine}}/pull/11886) remove extra redundant channels setup in iOS embedding engine
 
-[12078]({{site.github}}/flutter/engine/pull/12078) Manage iOS contexts separately
+[12078]({{site.repo.engine}}/pull/12078) Manage iOS contexts separately
 
-[12084]({{site.github}}/flutter/engine/pull/12084) Guard availability of user notification related methods to iOS 10.0
+[12084]({{site.repo.engine}}/pull/12084) Guard availability of user notification related methods to iOS 10.0
 
-[12192]({{site.github}}/flutter/engine/pull/12192) Updating text field location in IOS as a pre-work for spellcheck
+[12192]({{site.repo.engine}}/pull/12192) Updating text field location in IOS as a pre-work for spellcheck
 
-[12295]({{site.github}}/flutter/engine/pull/12295) Issue 13238: on iOS, force an orientation change when the current orientation is not allowed
+[12295]({{site.repo.engine}}/pull/12295) Issue 13238: on iOS, force an orientation change when the current orientation is not allowed
 
-[12404]({{site.github}}/flutter/engine/pull/12404) Support accessibility labels on iOS switches.
+[12404]({{site.repo.engine}}/pull/12404) Support accessibility labels on iOS switches.
 
-[12990]({{site.github}}/flutter/engine/pull/12990) Fix for a11y crash on iOS
+[12990]({{site.repo.engine}}/pull/12990) Fix for a11y crash on iOS
 
-[13029]({{site.github}}/flutter/engine/pull/13029) Minimal test harness for iOS
+[13029]({{site.repo.engine}}/pull/13029) Minimal test harness for iOS
 
-[13051]({{site.github}}/flutter/engine/pull/13051) Don't bump iOS deployment target for Metal builds.
+[13051]({{site.repo.engine}}/pull/13051) Don't bump iOS deployment target for Metal builds.
 
-[13093]({{site.github}}/flutter/engine/pull/13093) iOS Platform View: Fixed overrelease of the observer.
+[13093]({{site.repo.engine}}/pull/13093) iOS Platform View: Fixed overrelease of the observer.
 
-[13170]({{site.github}}/flutter/engine/pull/13170) Issue 13238: on iOS, force an orientation change when the current orientation is not allowed
+[13170]({{site.repo.engine}}/pull/13170) Issue 13238: on iOS, force an orientation change when the current orientation is not allowed
 
-[13449]({{site.github}}/flutter/engine/pull/13449) Fix iOS crash when multiple platform views are in the scene
+[13449]({{site.repo.engine}}/pull/13449) Fix iOS crash when multiple platform views are in the scene
 
-[13469]({{site.github}}/flutter/engine/pull/13469) Fix stale platform view gr context on iOS
+[13469]({{site.repo.engine}}/pull/13469) Fix stale platform view gr context on iOS
 
-[13651]({{site.github}}/flutter/engine/pull/13651) Fixed the scroll direction for iOS horizontal accessibility scroll events.
+[13651]({{site.repo.engine}}/pull/13651) Fixed the scroll direction for iOS horizontal accessibility scroll events.
 
-[13852]({{site.github}}/flutter/engine/pull/13852) Do not default to downstream affinity on iOS insertText
+[13852]({{site.repo.engine}}/pull/13852) Do not default to downstream affinity on iOS insertText
 
-[13857]({{site.github}}/flutter/engine/pull/13857) Guard against orphaned semantic objects from referencing dead accessibility bridge on iOS
+[13857]({{site.repo.engine}}/pull/13857) Guard against orphaned semantic objects from referencing dead accessibility bridge on iOS
 
 [1370]({{site.github}}/flutter/plugins/pull/1370) [camera] Pause/resume video recording for Android & iOS
 
@@ -331,57 +331,57 @@ and [CupertinoDatePicker]({{site.api}}/flutter/cupertino/CupertinoDatePicker-cla
 
 In this release, we've merged a list of changes to support Android 10, including a new activity zoom transition. 
 
-[37526]({{site.github}}/flutter/flutter/pull/37526) catch errors during gradle update
+[37526]({{site.repo.flutter}}/pull/37526) catch errors during gradle update
 
-[39126]({{site.github}}/flutter/flutter/pull/39126) Fid app bundle in Gradle 3.5
+[39126]({{site.repo.flutter}}/pull/39126) Fid app bundle in Gradle 3.5
 
-[39145]({{site.github}}/flutter/flutter/pull/39145) Add missing files in the Gradle wrapper directory
+[39145]({{site.repo.flutter}}/pull/39145) Add missing files in the Gradle wrapper directory
 
-[39312]({{site.github}}/flutter/flutter/pull/39312) let flutter build aar use a local engine
+[39312]({{site.repo.flutter}}/pull/39312) let flutter build aar use a local engine
 
-[39457]({{site.github}}/flutter/flutter/pull/39457) Log flags in build apk and appbundle
+[39457]({{site.repo.flutter}}/pull/39457) Log flags in build apk and appbundle
 
-[40640]({{site.github}}/flutter/flutter/pull/40640) Exclude non Android plugins from Gradle build
+[40640]({{site.repo.flutter}}/pull/40640) Exclude non Android plugins from Gradle build
 
-[41698]({{site.github}}/flutter/flutter/pull/41698) Download android x64 release artifacts
+[41698]({{site.repo.flutter}}/pull/41698) Download android x64 release artifacts
 
-[41933]({{site.github}}/flutter/flutter/pull/41933) upload x64 android host release
+[41933]({{site.repo.flutter}}/pull/41933) upload x64 android host release
 
-[41935]({{site.github}}/flutter/flutter/pull/41935) [Android 10] Activity zoom transition
+[41935]({{site.repo.flutter}}/pull/41935) [Android 10] Activity zoom transition
 
-[41946]({{site.github}}/flutter/flutter/pull/41946) Do not validate the Android SDK when building an appbundle
+[41946]({{site.repo.flutter}}/pull/41946) Do not validate the Android SDK when building an appbundle
 
-[42378]({{site.github}}/flutter/flutter/pull/42378) remove println from flutter.gradle
+[42378]({{site.repo.flutter}}/pull/42378) remove println from flutter.gradle
 
-[42401]({{site.github}}/flutter/flutter/pull/42401) Add support for Android x86_64 ABI to Flutter
+[42401]({{site.repo.flutter}}/pull/42401) Add support for Android x86_64 ABI to Flutter
 
-[42508]({{site.github}}/flutter/flutter/pull/42508) Add Android x64 profile artifacts
+[42508]({{site.repo.flutter}}/pull/42508) Add Android x64 profile artifacts
 
-[42966]({{site.github}}/flutter/flutter/pull/42966) expand scope of rethrown gradle errors
+[42966]({{site.repo.flutter}}/pull/42966) expand scope of rethrown gradle errors
 
-[43245]({{site.github}}/flutter/flutter/pull/43245) Add smallestScreenSize to android:configChanges in the Android manifest template
+[43245]({{site.repo.flutter}}/pull/43245) Add smallestScreenSize to android:configChanges in the Android manifest template
 
-[43282]({{site.github}}/flutter/flutter/pull/43282) implement build aot with assemble for Android target platforms
+[43282]({{site.repo.flutter}}/pull/43282) implement build aot with assemble for Android target platforms
 
-[43876]({{site.github}}/flutter/flutter/pull/43876) Refactor flutter.gradle to use assemble directly
+[43876]({{site.repo.flutter}}/pull/43876) Refactor flutter.gradle to use assemble directly
 
-[44534]({{site.github}}/flutter/flutter/pull/44534) Improve performance of build APK (~50%) by running gen_snapshot concurrently
+[44534]({{site.repo.flutter}}/pull/44534) Improve performance of build APK (~50%) by running gen_snapshot concurrently
 
-[45139]({{site.github}}/flutter/flutter/pull/45139) Update Android CPU device detection
+[45139]({{site.repo.flutter}}/pull/45139) Update Android CPU device detection
 
-[11345]({{site.github}}/flutter/engine/pull/11345) [Android] Write MINIMAL_SDK required to use PlatformViews to exception message
+[11345]({{site.repo.engine}}/pull/11345) [Android] Write MINIMAL_SDK required to use PlatformViews to exception message
 
-[11441]({{site.github}}/flutter/engine/pull/11441) Android 10+ View.setSystemGestureExclusionRects
+[11441]({{site.repo.engine}}/pull/11441) Android 10+ View.setSystemGestureExclusionRects
 
-[11451]({{site.github}}/flutter/engine/pull/11451) Android 10+ View.getSystemGestureExclusionRects
+[11451]({{site.repo.engine}}/pull/11451) Android 10+ View.getSystemGestureExclusionRects
 
-[12085]({{site.github}}/flutter/engine/pull/12085) Enable platform view keyboard input on Android Q
+[12085]({{site.repo.engine}}/pull/12085) Enable platform view keyboard input on Android Q
 
-[13059]({{site.github}}/flutter/engine/pull/13059) Android targets create final zip artifacts
+[13059]({{site.repo.engine}}/pull/13059) Android targets create final zip artifacts
 
-[13099]({{site.github}}/flutter/engine/pull/13099) NO_SUGGESTIONS keyboard flag in Android
+[13099]({{site.repo.engine}}/pull/13099) NO_SUGGESTIONS keyboard flag in Android
 
-[13262]({{site.github}}/flutter/engine/pull/13262) Added Semantic header support on Android.
+[13262]({{site.repo.engine}}/pull/13262) Added Semantic header support on Android.
 
 [2003]({{site.github}}/flutter/plugins/pull/2003) [video_player] Added formatHint to to override video format on Android
 
@@ -400,191 +400,191 @@ In this release, we've merged a list of changes to support Android 10, including
 
 We've made a significant upgrade to Add-to-App, the feature that allows you to integrate a Flutter module into your Android or iOS app. Can't wait to try it? Check out the [Add-to-App documentation]({{site.url}}/add-to-app). 
 
-[41666]({{site.github}}/flutter/flutter/pull/41666) Generate projects using the new Android embedding
+[41666]({{site.repo.flutter}}/pull/41666) Generate projects using the new Android embedding
 
-[44369]({{site.github}}/flutter/flutter/pull/44369) Flip enable-android-embedding-v2 flag
+[44369]({{site.repo.flutter}}/pull/44369) Flip enable-android-embedding-v2 flag
 
-[40810]({{site.github}}/flutter/flutter/pull/40810) Re-enable AAR plugins when an AndroidX failure occurred
+[40810]({{site.repo.flutter}}/pull/40810) Re-enable AAR plugins when an AndroidX failure occurred
 
-[41820]({{site.github}}/flutter/flutter/pull/41820) Added SystemNavigator.pop "animated" argument.
+[41820]({{site.repo.flutter}}/pull/41820) Added SystemNavigator.pop "animated" argument.
 
-[12752]({{site.github}}/flutter/engine/pull/12752) Enabled people to chose if SystemNavigator.pop is animated on iOS.
+[12752]({{site.repo.engine}}/pull/12752) Enabled people to chose if SystemNavigator.pop is animated on iOS.
 
-[12069]({{site.github}}/flutter/engine/pull/12069) Fold the calls for FlutterMain into the FlutterEngine constructor
+[12069]({{site.repo.engine}}/pull/12069) Fold the calls for FlutterMain into the FlutterEngine constructor
 
-[39945]({{site.github}}/flutter/flutter/pull/39945) added new lifecycle state
+[39945]({{site.repo.flutter}}/pull/39945) added new lifecycle state
 
-[11913]({{site.github}}/flutter/engine/pull/11913) Added new lifecycle enum
+[11913]({{site.repo.engine}}/pull/11913) Added new lifecycle enum
 
-[45115]({{site.github}}/flutter/flutter/pull/45115) fix ios_add2app_life_cycle license
+[45115]({{site.repo.flutter}}/pull/45115) fix ios_add2app_life_cycle license
 
-[45133]({{site.github}}/flutter/flutter/pull/45133) reland add lifecycle enum and fix the scheduleforcedframe
+[45133]({{site.repo.flutter}}/pull/45133) reland add lifecycle enum and fix the scheduleforcedframe
 
-[45430]({{site.github}}/flutter/flutter/pull/45430) Drops detached message until we can handle it properly
+[45430]({{site.repo.flutter}}/pull/45430) Drops detached message until we can handle it properly
 
-[9525]({{site.github}}/flutter/engine/pull/9525) Android Embedding Refactor PR36: Add splash screen support.
+[9525]({{site.repo.engine}}/pull/9525) Android Embedding Refactor PR36: Add splash screen support.
 
-[9506]({{site.github}}/flutter/engine/pull/9506) Synchronize main thread and gpu thread for first render frame
+[9506]({{site.repo.engine}}/pull/9506) Synchronize main thread and gpu thread for first render frame
 
-[39600]({{site.github}}/flutter/flutter/pull/39600) Let Material BackButton have a custom onPressed handler
+[39600]({{site.repo.flutter}}/pull/39600) Let Material BackButton have a custom onPressed handler
 
-[9952]({{site.github}}/flutter/engine/pull/9952) ios: Fixed the callback for the first frame so that it isn't predicated on having a splash screen.
+[9952]({{site.repo.engine}}/pull/9952) ios: Fixed the callback for the first frame so that it isn't predicated on having a splash screen.
 
-[10145]({{site.github}}/flutter/engine/pull/10145) Added integration test that tests that the first frame callback is called
+[10145]({{site.repo.engine}}/pull/10145) Added integration test that tests that the first frame callback is called
 
-[42708]({{site.github}}/flutter/flutter/pull/42708) Test the Android embedding v2
+[42708]({{site.repo.flutter}}/pull/42708) Test the Android embedding v2
 
-[43221]({{site.github}}/flutter/flutter/pull/43221) Migrate examples to the Android embedding v2
+[43221]({{site.repo.flutter}}/pull/43221) Migrate examples to the Android embedding v2
 
-[9895]({{site.github}}/flutter/engine/pull/9895) Android Embedding PR37: Separated FlutterActivity and FlutterFragment via FlutterActivityAndFragmentDelegate
+[9895]({{site.repo.engine}}/pull/9895) Android Embedding PR37: Separated FlutterActivity and FlutterFragment via FlutterActivityAndFragmentDelegate
 
-[11890]({{site.github}}/flutter/engine/pull/11890) Add some AppLifecycleTests
+[11890]({{site.repo.engine}}/pull/11890) Add some AppLifecycleTests
 
-[12128]({{site.github}}/flutter/engine/pull/12128) Make iOS FlutterViewController stop sending inactive/pause on app lifecycle events when not visible
+[12128]({{site.repo.engine}}/pull/12128) Make iOS FlutterViewController stop sending inactive/pause on app lifecycle events when not visible
 
-[12232]({{site.github}}/flutter/engine/pull/12232) FlutterViewController notify will dealloc
+[12232]({{site.repo.engine}}/pull/12232) FlutterViewController notify will dealloc
 
-[13280]({{site.github}}/flutter/engine/pull/13280) Android embedding API updates for plugin ecosystem
+[13280]({{site.repo.engine}}/pull/13280) Android embedding API updates for plugin ecosystem
 
-[13349]({{site.github}}/flutter/engine/pull/13349) Deprecated DartExecutor as BinaryMessenger and added a getBinaryMessenger() method. (#43202)
+[13349]({{site.repo.engine}}/pull/13349) Deprecated DartExecutor as BinaryMessenger and added a getBinaryMessenger() method. (#43202)
 
-[13432]({{site.github}}/flutter/engine/pull/13432) Release shim bindings when detaching
+[13432]({{site.repo.engine}}/pull/13432) Release shim bindings when detaching
 
 [2232]({{site.github}}/flutter/plugins/pull/2232) [multiple] V2 embedding plugins use compileOnly
 
 [1323]({{site.github}}/FirebaseExtended/flutterfire/pull/1323) [firebase_core][firebase_analytics] Fix bug with transitive lifecycle dependencies
 
-[13445]({{site.github}}/flutter/engine/pull/13445) Fizzle onConfigurationChanged if no FlutterView
+[13445]({{site.repo.engine}}/pull/13445) Fizzle onConfigurationChanged if no FlutterView
 
-[44499]({{site.github}}/flutter/flutter/pull/44499) Show a warning when a module uses a v1 only plugin
+[44499]({{site.repo.flutter}}/pull/44499) Show a warning when a module uses a v1 only plugin
 
-[35100]({{site.github}}/flutter/flutter/pull/35100) Add handling of 'TextInput.clearClient' message from platform to framework (#35054).
+[35100]({{site.repo.flutter}}/pull/35100) Add handling of 'TextInput.clearClient' message from platform to framework (#35054).
 
-[13474]({{site.github}}/flutter/engine/pull/13474) Request a reattach when creating the text input plugin on Android
+[13474]({{site.repo.engine}}/pull/13474) Request a reattach when creating the text input plugin on Android
 
-[43959]({{site.github}}/flutter/flutter/pull/43959) Respond to TextInputClient.reattach messages.
+[43959]({{site.repo.flutter}}/pull/43959) Respond to TextInputClient.reattach messages.
 
 [509]({{site.github}}/flutter/cocoon/pull/509) Force the phone's screen on before running a test.
 
-[11792]({{site.github}}/flutter/engine/pull/11792) Started logging warnings if we drop platform messages.
+[11792]({{site.repo.engine}}/pull/11792) Started logging warnings if we drop platform messages.
 
-[12167]({{site.github}}/flutter/engine/pull/12167) Channel buffers
+[12167]({{site.repo.engine}}/pull/12167) Channel buffers
 
-[40165]({{site.github}}/flutter/flutter/pull/40165) Channel buffers
+[40165]({{site.repo.flutter}}/pull/40165) Channel buffers
 
-[12402]({{site.github}}/flutter/engine/pull/12402) Resize channel buffers
+[12402]({{site.repo.engine}}/pull/12402) Resize channel buffers
 
-[6879]({{site.github}}/flutter/engine/pull/6879) Allow FlutterViewController to be released when not initialized with an engine
+[6879]({{site.repo.engine}}/pull/6879) Allow FlutterViewController to be released when not initialized with an engine
 
-[9329]({{site.github}}/flutter/engine/pull/9329) Fixed memory leak by way of accidental retain on implicit self
+[9329]({{site.repo.engine}}/pull/9329) Fixed memory leak by way of accidental retain on implicit self
 
-[9347]({{site.github}}/flutter/engine/pull/9347) Surrogate binary messenger
+[9347]({{site.repo.engine}}/pull/9347) Surrogate binary messenger
 
-[9419]({{site.github}}/flutter/engine/pull/9419) Has a binary messenger
+[9419]({{site.repo.engine}}/pull/9419) Has a binary messenger
 
-[8387]({{site.github}}/flutter/engine/pull/8387) Make the resource context primary on iOS
+[8387]({{site.repo.engine}}/pull/8387) Make the resource context primary on iOS
 
-[11798]({{site.github}}/flutter/engine/pull/11798) Manage resource and onscreen contexts using separate IOSGLContext objects
+[11798]({{site.repo.engine}}/pull/11798) Manage resource and onscreen contexts using separate IOSGLContext objects
 
-[12277]({{site.github}}/flutter/engine/pull/12277) Manage resource and onscreen contexts using separate IOSGLContext objects
+[12277]({{site.repo.engine}}/pull/12277) Manage resource and onscreen contexts using separate IOSGLContext objects
 
-[13396]({{site.github}}/flutter/engine/pull/13396) Made it so we clean up gl resources when view controllers get deleted.
+[13396]({{site.repo.engine}}/pull/13396) Made it so we clean up gl resources when view controllers get deleted.
 
-[39157]({{site.github}}/flutter/flutter/pull/39157) Use new Maven artifacts from Gradle
+[39157]({{site.repo.flutter}}/pull/39157) Use new Maven artifacts from Gradle
 
-[39503]({{site.github}}/flutter/flutter/pull/39503) Remove bitcode=NO from add-to-app flows
+[39503]({{site.repo.flutter}}/pull/39503) Remove bitcode=NO from add-to-app flows
 
-[36793]({{site.github}}/flutter/flutter/pull/36793) Vend Flutter module App.framework as a local CocoaPod pod to be installed by a host app
+[36793]({{site.repo.flutter}}/pull/36793) Vend Flutter module App.framework as a local CocoaPod pod to be installed by a host app
 
-[37966]({{site.github}}/flutter/flutter/pull/37966) Remove ephemeral directories during flutter clean
+[37966]({{site.repo.flutter}}/pull/37966) Remove ephemeral directories during flutter clean
 
-[40302]({{site.github}}/flutter/flutter/pull/40302) Set DEFINES_MODULE for FlutterPluginRegistrant to generate modulemap
+[40302]({{site.repo.flutter}}/pull/40302) Set DEFINES_MODULE for FlutterPluginRegistrant to generate modulemap
 
-[37731]({{site.github}}/flutter/flutter/pull/37731) Add metadata to indicate if the host app contains a Flutter module
+[37731]({{site.repo.flutter}}/pull/37731) Add metadata to indicate if the host app contains a Flutter module
 
-[36805]({{site.github}}/flutter/flutter/pull/36805) Allow flavors and custom build types in host app
+[36805]({{site.repo.flutter}}/pull/36805) Allow flavors and custom build types in host app
 
-[26630]({{site.github}}/flutter/flutter/pull/26630) Move flutter_assets to App.framework
+[26630]({{site.repo.flutter}}/pull/26630) Move flutter_assets to App.framework
 
-[31463]({{site.github}}/flutter/flutter/pull/31463) Disable all Dart fingerprinters
+[31463]({{site.repo.flutter}}/pull/31463) Disable all Dart fingerprinters
 
-[35217]({{site.github}}/flutter/flutter/pull/35217) Add flutter build aar
+[35217]({{site.repo.flutter}}/pull/35217) Add flutter build aar
 
-[40927]({{site.github}}/flutter/flutter/pull/40927) Make module pod headers public
+[40927]({{site.repo.flutter}}/pull/40927) Make module pod headers public
 
-[44065]({{site.github}}/flutter/flutter/pull/44065) Build ios framework
+[44065]({{site.repo.flutter}}/pull/44065) Build ios framework
 
-[37206]({{site.github}}/flutter/flutter/pull/37206) Test that modules built as AAR contain the right assets and artifacts
+[37206]({{site.repo.flutter}}/pull/37206) Test that modules built as AAR contain the right assets and artifacts
 
-[44127]({{site.github}}/flutter/flutter/pull/44127) build aar prints how to consume the artifacts
+[44127]({{site.repo.flutter}}/pull/44127) build aar prints how to consume the artifacts
 
-[23782]({{site.github}}/flutter/flutter/pull/23782) Add flutter_shared assets to module artifact
+[23782]({{site.repo.flutter}}/pull/23782) Add flutter_shared assets to module artifact
 
-[22707]({{site.github}}/flutter/flutter/pull/22707) Gradle plugin support for adding flutter as subproject to another Android app
+[22707]({{site.repo.flutter}}/pull/22707) Gradle plugin support for adding flutter as subproject to another Android app
 
-[9893]({{site.github}}/flutter/engine/pull/9893) Removed logic from FlutterAppDelegate into FlutterPluginAppLifeCycleDelegate
+[9893]({{site.repo.engine}}/pull/9893) Removed logic from FlutterAppDelegate into FlutterPluginAppLifeCycleDelegate
 
-[9922]({{site.github}}/flutter/engine/pull/9922) Split out lifecycle protocol
+[9922]({{site.repo.engine}}/pull/9922) Split out lifecycle protocol
 
-[44026]({{site.github}}/flutter/flutter/pull/44026) Exit tool if a plugin only supports the embedding v2 but the app doesn't
+[44026]({{site.repo.flutter}}/pull/44026) Exit tool if a plugin only supports the embedding v2 but the app doesn't
 
-[44214]({{site.github}}/flutter/flutter/pull/44214) Fix v1 embedding support heuristic for plugins
+[44214]({{site.repo.flutter}}/pull/44214) Fix v1 embedding support heuristic for plugins
 
-[43994]({{site.github}}/flutter/flutter/pull/43994) flutter build aar should also build plugins as AARs
+[43994]({{site.repo.flutter}}/pull/43994) flutter build aar should also build plugins as AARs
 
-[13455]({{site.github}}/flutter/engine/pull/13455) Automatically register plugins in FlutterEngine. (#43855)
+[13455]({{site.repo.engine}}/pull/13455) Automatically register plugins in FlutterEngine. (#43855)
 
-[44011]({{site.github}}/flutter/flutter/pull/44011) Move the plugin registrant to io.flutter.plugins and add the @Keep an…
+[44011]({{site.repo.flutter}}/pull/44011) Move the plugin registrant to io.flutter.plugins and add the @Keep an…
 
-[44166]({{site.github}}/flutter/flutter/pull/44166) Add v1 plugin register function into v2 plugin template
+[44166]({{site.repo.flutter}}/pull/44166) Add v1 plugin register function into v2 plugin template
 
-[13394]({{site.github}}/flutter/engine/pull/13394) Remove multiplexed Flutter Android Lifecycle. (#43663)
+[13394]({{site.repo.engine}}/pull/13394) Remove multiplexed Flutter Android Lifecycle. (#43663)
 
-[45557]({{site.github}}/flutter/flutter/pull/45557) Add a note to generated plugins files
+[45557]({{site.repo.flutter}}/pull/45557) Add a note to generated plugins files
 
-[45379]({{site.github}}/flutter/flutter/pull/45379) Add .flutter-plugins-dependencies to the project, which contains the app's plugin dependency graph
+[45379]({{site.repo.flutter}}/pull/45379) Add .flutter-plugins-dependencies to the project, which contains the app's plugin dependency graph
 
-[3850]({{site.github}}/flutter/flutter-intellij/pull/3850) Support co-editing Flutter and Android in a single project
+[3850]({{site.repo.flutter}}-intellij/pull/3850) Support co-editing Flutter and Android in a single project
 
-[4097]({{site.github}}/flutter/flutter-intellij/pull/4097) Support for debugging add-to-app modules in Android Studio
+[4097]({{site.repo.flutter}}-intellij/pull/4097) Support for debugging add-to-app modules in Android Studio
 
-[4129]({{site.github}}/flutter/flutter-intellij/pull/4129) Smooth out the rough spots in add-to-app support
+[4129]({{site.repo.flutter}}-intellij/pull/4129) Smooth out the rough spots in add-to-app support
 
-[4062]({{site.github}}/flutter/flutter-intellij/pull/4062) Re-enable attach button for add-to-app projects
+[4062]({{site.repo.flutter}}-intellij/pull/4062) Re-enable attach button for add-to-app projects
 
-[4004]({{site.github}}/flutter/flutter-intellij/pull/4004) Co-edit module created in Android Studio
+[4004]({{site.repo.flutter}}-intellij/pull/4004) Co-edit module created in Android Studio
 
-[33297]({{site.github}}/flutter/flutter/pull/33297) Instrument add to app flows
+[33297]({{site.repo.flutter}}/pull/33297) Instrument add to app flows
 
-[33458]({{site.github}}/flutter/flutter/pull/33458) Add to app measurement
+[33458]({{site.repo.flutter}}/pull/33458) Add to app measurement
 
-[34189]({{site.github}}/flutter/flutter/pull/34189) Instrument usage of include_flutter.groovy and xcode_backend.sh
+[34189]({{site.repo.flutter}}/pull/34189) Instrument usage of include_flutter.groovy and xcode_backend.sh
 
-[13289]({{site.github}}/flutter/engine/pull/13289) Made restarting the Engine remember the last entrypoint that was used.
+[13289]({{site.repo.engine}}/pull/13289) Made restarting the Engine remember the last entrypoint that was used.
 
-[12370]({{site.github}}/flutter/engine/pull/12370) Added a default entrypoint variable to match android syntax.
+[12370]({{site.repo.engine}}/pull/12370) Added a default entrypoint variable to match android syntax.
 
-[10823]({{site.github}}/flutter/engine/pull/10823) Expose isolateId for engine
+[10823]({{site.repo.engine}}/pull/10823) Expose isolateId for engine
 
-[13264]({{site.github}}/flutter/engine/pull/13264) Made restarting the Engine remember the last entrypoint that was used.
+[13264]({{site.repo.engine}}/pull/13264) Made restarting the Engine remember the last entrypoint that was used.
 
-[13789]({{site.github}}/flutter/engine/pull/13789) add recent packages to javadoc list
+[13789]({{site.repo.engine}}/pull/13789) add recent packages to javadoc list
 
-[10481]({{site.github}}/flutter/engine/pull/10481) Android embedding refactor pr40 add static engine cache
+[10481]({{site.repo.engine}}/pull/10481) Android embedding refactor pr40 add static engine cache
 
-[29946]({{site.github}}/flutter/flutter/pull/29946) Let CupertinoPageScaffold have tap status bar to scroll to top
+[29946]({{site.repo.flutter}}/pull/29946) Let CupertinoPageScaffold have tap status bar to scroll to top
 
-[12587]({{site.github}}/flutter/engine/pull/12587) Split out the logic to handle status bar touches into its own function
+[12587]({{site.repo.engine}}/pull/12587) Split out the logic to handle status bar touches into its own function
 
-[44638]({{site.github}}/flutter/flutter/pull/44638) Add module to create template help text
+[44638]({{site.repo.flutter}}/pull/44638) Add module to create template help text
 
-[9351]({{site.github}}/flutter/engine/pull/9351) Android Embedding Refactor PR32: Clean up logs in new embedding.
+[9351]({{site.repo.engine}}/pull/9351) Android Embedding Refactor PR32: Clean up logs in new embedding.
 
-[6447]({{site.github}}/flutter/engine/pull/6447) iOS Embedding Refactor
+[6447]({{site.repo.engine}}/pull/6447) iOS Embedding Refactor
 
-[41794]({{site.github}}/flutter/flutter/pull/41794) Updated the docstring for SystemNavigator.pop.
+[41794]({{site.repo.flutter}}/pull/41794) Updated the docstring for SystemNavigator.pop.
 
-[9304]({{site.github}}/flutter/engine/pull/9304) Decorate UIApplicationDelegate wrappers with matching UIKit deprecation
+[9304]({{site.repo.engine}}/pull/9304) Decorate UIApplicationDelegate wrappers with matching UIKit deprecation
 
 [266]({{site.github}}/FirebaseExtended/flutterfire/pull/266) [firebase_performance] support v2 android embedding
 
@@ -650,199 +650,199 @@ We've made a significant upgrade to Add-to-App, the feature that allows you to i
 
 [2327]({{site.github}}/flutter/plugins/pull/2327) [android_alarm_manager] Update minimum Flutter version to 1.12.0
 
-[43461]({{site.github}}/flutter/flutter/pull/43461) Fixed usage of optional types in swift integration test.
+[43461]({{site.repo.flutter}}/pull/43461) Fixed usage of optional types in swift integration test.
 
-[13423]({{site.github}}/flutter/engine/pull/13423) Automatically destroy FlutterEngine when created by FlutterActivity or FlutterFragment.
+[13423]({{site.repo.engine}}/pull/13423) Automatically destroy FlutterEngine when created by FlutterActivity or FlutterFragment.
 
-[42958]({{site.github}}/flutter/flutter/pull/42958) Turn off bitcode for integration tests and add-to-app templates
+[42958]({{site.repo.flutter}}/pull/42958) Turn off bitcode for integration tests and add-to-app templates
 
-[13428]({{site.github}}/flutter/engine/pull/13428) Set the install name at link time for darwin dylibs
+[13428]({{site.repo.engine}}/pull/13428) Set the install name at link time for darwin dylibs
 
-[41333]({{site.github}}/flutter/flutter/pull/41333) Merge Flutter assets in add to app
+[41333]({{site.repo.flutter}}/pull/41333) Merge Flutter assets in add to app
 
-[39747]({{site.github}}/flutter/flutter/pull/39747) Fix type mismatch in Gradle
+[39747]({{site.repo.flutter}}/pull/39747) Fix type mismatch in Gradle
 
-[39986]({{site.github}}/flutter/flutter/pull/39986) Enable Proguard by default on release mode
+[39986]({{site.repo.flutter}}/pull/39986) Enable Proguard by default on release mode
 
-[40181]({{site.github}}/flutter/flutter/pull/40181) Update Kotlin and Gradle version
+[40181]({{site.repo.flutter}}/pull/40181) Update Kotlin and Gradle version
 
-[40282]({{site.github}}/flutter/flutter/pull/40282) Flip the default for proguard
+[40282]({{site.repo.flutter}}/pull/40282) Flip the default for proguard
 
-[40440]({{site.github}}/flutter/flutter/pull/40440) Rename useProguard method, so Gradle doesn't get confused
+[40440]({{site.repo.flutter}}/pull/40440) Rename useProguard method, so Gradle doesn't get confused
 
-[40453]({{site.github}}/flutter/flutter/pull/40453) Enable R8
+[40453]({{site.repo.flutter}}/pull/40453) Enable R8
 
-[40610]({{site.github}}/flutter/flutter/pull/40610) Enable the resource shrinker
+[40610]({{site.repo.flutter}}/pull/40610) Enable the resource shrinker
 
-[40900]({{site.github}}/flutter/flutter/pull/40900) Stop using deprecated features from Gradle
+[40900]({{site.repo.flutter}}/pull/40900) Stop using deprecated features from Gradle
 
-[40925]({{site.github}}/flutter/flutter/pull/40925) Use AndroidX in new projects by default
+[40925]({{site.repo.flutter}}/pull/40925) Use AndroidX in new projects by default
 
-[41142]({{site.github}}/flutter/flutter/pull/41142) Add embedding as API dependency instead of compile only dependency
+[41142]({{site.repo.flutter}}/pull/41142) Add embedding as API dependency instead of compile only dependency
 
-[41251]({{site.github}}/flutter/flutter/pull/41251) Migrate examples and tests to AndroidX
+[41251]({{site.repo.flutter}}/pull/41251) Migrate examples and tests to AndroidX
 
-[41254]({{site.github}}/flutter/flutter/pull/41254) Test that flutter assets are contained in the APK
+[41254]({{site.repo.flutter}}/pull/41254) Test that flutter assets are contained in the APK
 
-[41885]({{site.github}}/flutter/flutter/pull/41885) Include embedding transitive dependencies in plugins
+[41885]({{site.repo.flutter}}/pull/41885) Include embedding transitive dependencies in plugins
 
-[41942]({{site.github}}/flutter/flutter/pull/41942) Use mergeResourcesProvider instead of deprecated mergeResources
+[41942]({{site.repo.flutter}}/pull/41942) Use mergeResourcesProvider instead of deprecated mergeResources
 
-[42022]({{site.github}}/flutter/flutter/pull/42022) Fix smoke test
+[42022]({{site.repo.flutter}}/pull/42022) Fix smoke test
 
-[42306]({{site.github}}/flutter/flutter/pull/42306) Ensure that flutter assets are copied in the AAR
+[42306]({{site.repo.flutter}}/pull/42306) Ensure that flutter assets are copied in the AAR
 
-[42352]({{site.github}}/flutter/flutter/pull/42352) Add android.permission.WAKE_LOCK permission to abstract_method_smoke_test
+[42352]({{site.repo.flutter}}/pull/42352) Add android.permission.WAKE_LOCK permission to abstract_method_smoke_test
 
-[42360]({{site.github}}/flutter/flutter/pull/42360) Add smoke test for the new Android embedding
+[42360]({{site.repo.flutter}}/pull/42360) Add smoke test for the new Android embedding
 
-[42548]({{site.github}}/flutter/flutter/pull/42548) Print message and log event when app isn't using AndroidX
+[42548]({{site.repo.flutter}}/pull/42548) Print message and log event when app isn't using AndroidX
 
-[42684]({{site.github}}/flutter/flutter/pull/42684) Remove isNewAndroidEmbeddingEnabled flag when reading an existing pro…
+[42684]({{site.repo.flutter}}/pull/42684) Remove isNewAndroidEmbeddingEnabled flag when reading an existing pro…
 
-[42709]({{site.github}}/flutter/flutter/pull/42709) Test Gradle on Windows
+[42709]({{site.repo.flutter}}/pull/42709) Test Gradle on Windows
 
-[42981]({{site.github}}/flutter/flutter/pull/42981) Remove GeneratedPluginRegistrant.java
+[42981]({{site.repo.flutter}}/pull/42981) Remove GeneratedPluginRegistrant.java
 
-[43187]({{site.github}}/flutter/flutter/pull/43187) Ensure android.enableR8 is appended to a new line
+[43187]({{site.repo.flutter}}/pull/43187) Ensure android.enableR8 is appended to a new line
 
-[43479]({{site.github}}/flutter/flutter/pull/43479) Refactor gradle.dart
+[43479]({{site.repo.flutter}}/pull/43479) Refactor gradle.dart
 
-[43669]({{site.github}}/flutter/flutter/pull/43669) Don't read AndroidManifest.xml if it doesn't exit
+[43669]({{site.repo.flutter}}/pull/43669) Don't read AndroidManifest.xml if it doesn't exit
 
-[43674]({{site.github}}/flutter/flutter/pull/43674) Add missing import
+[43674]({{site.repo.flutter}}/pull/43674) Add missing import
 
-[43675]({{site.github}}/flutter/flutter/pull/43675) Fix device lab tests
+[43675]({{site.repo.flutter}}/pull/43675) Fix device lab tests
 
-[43927]({{site.github}}/flutter/flutter/pull/43927) Fix stdout test
+[43927]({{site.repo.flutter}}/pull/43927) Fix stdout test
 
-[43941]({{site.github}}/flutter/flutter/pull/43941) Tweaks after the gradle.dart refactor
+[43941]({{site.repo.flutter}}/pull/43941) Tweaks after the gradle.dart refactor
 
-[44301]({{site.github}}/flutter/flutter/pull/44301) Don't print how to consume AARs when building plugins as AARs
+[44301]({{site.repo.flutter}}/pull/44301) Don't print how to consume AARs when building plugins as AARs
 
-[44243]({{site.github}}/flutter/flutter/pull/44243) Build local maven repo when using local engine
+[44243]({{site.repo.flutter}}/pull/44243) Build local maven repo when using local engine
 
-[44302]({{site.github}}/flutter/flutter/pull/44302) Don't add x86 nor x64 when building a local engine in debug mode
+[44302]({{site.repo.flutter}}/pull/44302) Don't add x86 nor x64 when building a local engine in debug mode
 
-[44637]({{site.github}}/flutter/flutter/pull/44637) Attach looks at future observatory URIs
+[44637]({{site.repo.flutter}}/pull/44637) Attach looks at future observatory URIs
 
-[44783]({{site.github}}/flutter/flutter/pull/44783) Forward ProcessException to error handlers
+[44783]({{site.repo.flutter}}/pull/44783) Forward ProcessException to error handlers
 
-[44797]({{site.github}}/flutter/flutter/pull/44797) Build AAR for all build variants by default
+[44797]({{site.repo.flutter}}/pull/44797) Build AAR for all build variants by default
 
-[45439]({{site.github}}/flutter/flutter/pull/45439) Fallback to protocol discovery if mdns returns null
+[45439]({{site.repo.flutter}}/pull/45439) Fallback to protocol discovery if mdns returns null
 
-[45579]({{site.github}}/flutter/flutter/pull/45579) Add integration test for transitive plugin dependencies
+[45579]({{site.repo.flutter}}/pull/45579) Add integration test for transitive plugin dependencies
 
-[45743]({{site.github}}/flutter/flutter/pull/45743) Android log reader reads any recent logs
+[45743]({{site.repo.flutter}}/pull/45743) Android log reader reads any recent logs
 
-[45937]({{site.github}}/flutter/flutter/pull/45937) Handle case where lastLogcatTimestamp is null
+[45937]({{site.repo.flutter}}/pull/45937) Handle case where lastLogcatTimestamp is null
 
-[46040]({{site.github}}/flutter/flutter/pull/46040) Enable Android embedding v2 on the beta, dev and stable channel
+[46040]({{site.repo.flutter}}/pull/46040) Enable Android embedding v2 on the beta, dev and stable channel
 
-[46101]({{site.github}}/flutter/flutter/pull/46101) Remove flutterBuildPluginAsAarFeature flag
+[46101]({{site.repo.flutter}}/pull/46101) Remove flutterBuildPluginAsAarFeature flag
 
-[14136]({{site.github}}/flutter/engine/pull/14136) Expanded our scenario_app docs.
+[14136]({{site.repo.engine}}/pull/14136) Expanded our scenario_app docs.
 
-[14094]({{site.github}}/flutter/engine/pull/14094) Started specifying the OS version for running the tests.
+[14094]({{site.repo.engine}}/pull/14094) Started specifying the OS version for running the tests.
 
-[13421]({{site.github}}/flutter/engine/pull/13421) FlutterAppDelegate: Added back in empty lifecycle methods
+[13421]({{site.repo.engine}}/pull/13421) FlutterAppDelegate: Added back in empty lifecycle methods
 
-[13073]({{site.github}}/flutter/engine/pull/13073) Removed retain cycle from notification center.
+[13073]({{site.repo.engine}}/pull/13073) Removed retain cycle from notification center.
 
-[13006]({{site.github}}/flutter/engine/pull/13006) Refactor: FlutterDartProject
+[13006]({{site.repo.engine}}/pull/13006) Refactor: FlutterDartProject
 
-[44782]({{site.github}}/flutter/flutter/pull/44782) Updated flutter/examples to further conform to new embedding: removed references to FlutterApplication, deleted all MainActivity's that were not necessary, removed all direct invocations of GeneratedPluginRegistrant. (#22529)
+[44782]({{site.repo.flutter}}/pull/44782) Updated flutter/examples to further conform to new embedding: removed references to FlutterApplication, deleted all MainActivity's that were not necessary, removed all direct invocations of GeneratedPluginRegistrant. (#22529)
 
-[45740]({{site.github}}/flutter/flutter/pull/45740) Do not delete output directory during flutter build ios-framework
+[45740]({{site.repo.flutter}}/pull/45740) Do not delete output directory during flutter build ios-framework
 
-[45560]({{site.github}}/flutter/flutter/pull/45560) Always compile with isysroot on iOS to point to SDK root
+[45560]({{site.repo.flutter}}/pull/45560) Always compile with isysroot on iOS to point to SDK root
 
-[45436]({{site.github}}/flutter/flutter/pull/45436) Always compile with -isysroot flag on iOS to point to SDK root
+[45436]({{site.repo.flutter}}/pull/45436) Always compile with -isysroot flag on iOS to point to SDK root
 
-[45189]({{site.github}}/flutter/flutter/pull/45189) Remove chmod to make Flutter framework headers unwritable
+[45189]({{site.repo.flutter}}/pull/45189) Remove chmod to make Flutter framework headers unwritable
 
-[45136]({{site.github}}/flutter/flutter/pull/45136) Remove FLUTTER_DEVICELAB_XCODE_PROVISIONING_CONFIG code paths
+[45136]({{site.repo.flutter}}/pull/45136) Remove FLUTTER_DEVICELAB_XCODE_PROVISIONING_CONFIG code paths
 
-[44633]({{site.github}}/flutter/flutter/pull/44633) Turn on bitcode for integration tests and add-to-app templates
+[44633]({{site.repo.flutter}}/pull/44633) Turn on bitcode for integration tests and add-to-app templates
 
-[44625]({{site.github}}/flutter/flutter/pull/44625) Release startup lock during long-lived build ios framework
+[44625]({{site.repo.flutter}}/pull/44625) Release startup lock during long-lived build ios framework
 
-[44324]({{site.github}}/flutter/flutter/pull/44324) Add swift_versions to plugin template podspec, include default CocoaPod version
+[44324]({{site.repo.flutter}}/pull/44324) Add swift_versions to plugin template podspec, include default CocoaPod version
 
-[43915]({{site.github}}/flutter/flutter/pull/43915) Observe logging from VM service on iOS 13
+[43915]({{site.repo.flutter}}/pull/43915) Observe logging from VM service on iOS 13
 
-[43553]({{site.github}}/flutter/flutter/pull/43553) Pass environment variables through to xcodebuild
+[43553]({{site.repo.flutter}}/pull/43553) Pass environment variables through to xcodebuild
 
-[42872]({{site.github}}/flutter/flutter/pull/42872) Remove use_modular_headers from Podfiles using libraries
+[42872]({{site.repo.flutter}}/pull/42872) Remove use_modular_headers from Podfiles using libraries
 
-[42808]({{site.github}}/flutter/flutter/pull/42808) Run flutter pub get before pod install in platform_view_ios__start_up test
+[42808]({{site.repo.flutter}}/pull/42808) Run flutter pub get before pod install in platform_view_ios__start_up test
 
-[42254]({{site.github}}/flutter/flutter/pull/42254) Update minimum version to Xcode 10.2
+[42254]({{site.repo.flutter}}/pull/42254) Update minimum version to Xcode 10.2
 
-[42204]({{site.github}}/flutter/flutter/pull/42204) Add use_modular_headers! to default Podfile
+[42204]({{site.repo.flutter}}/pull/42204) Add use_modular_headers! to default Podfile
 
-[42029]({{site.github}}/flutter/flutter/pull/42029) Always embed iOS Flutter.framework build mode version from Xcode configuration
+[42029]({{site.repo.flutter}}/pull/42029) Always embed iOS Flutter.framework build mode version from Xcode configuration
 
-[41882]({{site.github}}/flutter/flutter/pull/41882) Increase template Swift version from 4 to 5
+[41882]({{site.repo.flutter}}/pull/41882) Increase template Swift version from 4 to 5
 
-[41491]({{site.github}}/flutter/flutter/pull/41491) Skip pod initialization if version >= 1.8.0.
+[41491]({{site.repo.flutter}}/pull/41491) Skip pod initialization if version >= 1.8.0.
 
-[40792]({{site.github}}/flutter/flutter/pull/40792) Move build info checks from generating files to the xcode build
+[40792]({{site.repo.flutter}}/pull/40792) Move build info checks from generating files to the xcode build
 
-[40611]({{site.github}}/flutter/flutter/pull/40611) Warn when build number and version can't be parsed on iOS
+[40611]({{site.repo.flutter}}/pull/40611) Warn when build number and version can't be parsed on iOS
 
-[40401]({{site.github}}/flutter/flutter/pull/40401) Make FlutterPluginRegistrant a static framework so add-to-app can use static framework plugins
+[40401]({{site.repo.flutter}}/pull/40401) Make FlutterPluginRegistrant a static framework so add-to-app can use static framework plugins
 
-[40174]({{site.github}}/flutter/flutter/pull/40174) Keep Flutter.framework binaries writable so they can be code signed
+[40174]({{site.repo.flutter}}/pull/40174) Keep Flutter.framework binaries writable so they can be code signed
 
-[40117]({{site.github}}/flutter/flutter/pull/40117) Show outdated CocoaPods version in hint text
+[40117]({{site.repo.flutter}}/pull/40117) Show outdated CocoaPods version in hint text
 
-[39539]({{site.github}}/flutter/flutter/pull/39539) Keep Flutter.framework binaries writable so they can be code signed
+[39539]({{site.repo.flutter}}/pull/39539) Keep Flutter.framework binaries writable so they can be code signed
 
-[39509]({{site.github}}/flutter/flutter/pull/39509) Skip failing add2app test to unblock roll
+[39509]({{site.repo.flutter}}/pull/39509) Skip failing add2app test to unblock roll
 
-[38992]({{site.github}}/flutter/flutter/pull/38992) Clean Xcode workspace during flutter clean
+[38992]({{site.repo.flutter}}/pull/38992) Clean Xcode workspace during flutter clean
 
-[38905]({{site.github}}/flutter/flutter/pull/38905) Remove iphonesimulator from SUPPORTED_PLATFORMS for Profile and Release modes
+[38905]({{site.repo.flutter}}/pull/38905) Remove iphonesimulator from SUPPORTED_PLATFORMS for Profile and Release modes
 
-[11357]({{site.github}}/flutter/engine/pull/11357) Rename first frame method and notify FlutterActivity when full drawn (#38714 #36796).
+[11357]({{site.repo.engine}}/pull/11357) Rename first frame method and notify FlutterActivity when full drawn (#38714 #36796).
 
-[11844]({{site.github}}/flutter/engine/pull/11844) Updated API usage in scenario app by deleting unnecessary method.
+[11844]({{site.repo.engine}}/pull/11844) Updated API usage in scenario app by deleting unnecessary method.
 
-[11902]({{site.github}}/flutter/engine/pull/11902) Remove un-needed FragmentActivity import statements to facilitate proguard.
+[11902]({{site.repo.engine}}/pull/11902) Remove un-needed FragmentActivity import statements to facilitate proguard.
 
-[12305]({{site.github}}/flutter/engine/pull/12305) Introduce flutterfragmentactivity
+[12305]({{site.repo.engine}}/pull/12305) Introduce flutterfragmentactivity
 
-[12328]({{site.github}}/flutter/engine/pull/12328) Added javadoc comments to FlutterActivity and FlutterFragmentActivity.
+[12328]({{site.repo.engine}}/pull/12328) Added javadoc comments to FlutterActivity and FlutterFragmentActivity.
 
-[12359]({{site.github}}/flutter/engine/pull/12359) Forwards Flutter View to platform views and detaches when needed.
+[12359]({{site.repo.engine}}/pull/12359) Forwards Flutter View to platform views and detaches when needed.
 
-[12362]({{site.github}}/flutter/engine/pull/12362) Fixes race condition that was reported internally.
+[12362]({{site.repo.engine}}/pull/12362) Fixes race condition that was reported internally.
 
-[12806]({{site.github}}/flutter/engine/pull/12806) Move initialization into FlutterEngine
+[12806]({{site.repo.engine}}/pull/12806) Move initialization into FlutterEngine
 
-[12987]({{site.github}}/flutter/engine/pull/12987) Added FlutterActivity and FlutterFragment hook to cleanUpFlutterEngine() as symmetry for configureFlutterEngine(). (#41943)
+[12987]({{site.repo.engine}}/pull/12987) Added FlutterActivity and FlutterFragment hook to cleanUpFlutterEngine() as symmetry for configureFlutterEngine(). (#41943)
 
-[13214]({{site.github}}/flutter/engine/pull/13214) Forwards Activity result to FlutterFragment in FlutterFragmentActivity.
+[13214]({{site.repo.engine}}/pull/13214) Forwards Activity result to FlutterFragment in FlutterFragmentActivity.
 
-[13215]({{site.github}}/flutter/engine/pull/13215) Adds Dark Mode support to new Android embedding (this was accidentally missed previously).
+[13215]({{site.repo.engine}}/pull/13215) Adds Dark Mode support to new Android embedding (this was accidentally missed previously).
 
-[13402]({{site.github}}/flutter/engine/pull/13402) Converted ActivityAware and ServiceAware Lifecycles to opaque objects (#43670)
+[13402]({{site.repo.engine}}/pull/13402) Converted ActivityAware and ServiceAware Lifecycles to opaque objects (#43670)
 
-[13660]({{site.github}}/flutter/engine/pull/13660) Fix splash screen lookup. (#44131)
+[13660]({{site.repo.engine}}/pull/13660) Fix splash screen lookup. (#44131)
 
-[13698]({{site.github}}/flutter/engine/pull/13698) Fix plugin registrant reflection path. (#44161)
+[13698]({{site.repo.engine}}/pull/13698) Fix plugin registrant reflection path. (#44161)
 
-[13738]({{site.github}}/flutter/engine/pull/13738) Removed scary experimental warnings for new embedding. (#44314)
+[13738]({{site.repo.engine}}/pull/13738) Removed scary experimental warnings for new embedding. (#44314)
 
-[13739]({{site.github}}/flutter/engine/pull/13739) Point old plugin registry accessors to new embedding plugin accessors. (#44225)
+[13739]({{site.repo.engine}}/pull/13739) Point old plugin registry accessors to new embedding plugin accessors. (#44225)
 
-[13743]({{site.github}}/flutter/engine/pull/13743) Expose asset lookup from plugin binding. (#42019)
+[13743]({{site.repo.engine}}/pull/13743) Expose asset lookup from plugin binding. (#42019)
 
-[13855]({{site.github}}/flutter/engine/pull/13855) Add support for --dart-flags in FlutterShellArgs. (#44855)
+[13855]({{site.repo.engine}}/pull/13855) Add support for --dart-flags in FlutterShellArgs. (#44855)
 
-[13932]({{site.github}}/flutter/engine/pull/13932) Removed GET_ACTIVITIES flag from all manifest meta-data lookups. (#38891)
+[13932]({{site.repo.engine}}/pull/13932) Removed GET_ACTIVITIES flag from all manifest meta-data lookups. (#38891)
 
 [2087]({{site.github}}/flutter/plugins/pull/2087) [android_alarm_manager] Update and migrate iOS example project
 
@@ -926,7 +926,7 @@ We've made a significant upgrade to Add-to-App, the feature that allows you to i
 
 [2186]({{site.github}}/flutter/plugins/pull/2186) Run clang analyzer on iOS and macOS code in CI test when packages change
 
-[40302]({{site.github}}/flutter/flutter/pull/40302) Set DEFINES_MODULE for FlutterPluginRegistrant to generate modulemap
+[40302]({{site.repo.flutter}}/pull/40302) Set DEFINES_MODULE for FlutterPluginRegistrant to generate modulemap
 
 [2206]({{site.github}}/flutter/plugins/pull/2206) [flutter_plugin_android_lifecycle] Update README with new plugin name
 
@@ -936,7 +936,7 @@ We've made a significant upgrade to Add-to-App, the feature that allows you to i
 
 [2243]({{site.github}}/flutter/plugins/pull/2243) [flutter_plugin_android_lifecycle] Adapt the FlutterLifecycleAdapter to the new embedding API
 
-[44043]({{site.github}}/flutter/flutter/pull/44043) Add Android embedding version analytics
+[44043]({{site.repo.flutter}}/pull/44043) Add Android embedding version analytics
 
 [2120]({{site.github}}/flutter/plugins/pull/2120) [image_picker] fix crash when aar from 'flutter build aar'
 
@@ -944,11 +944,11 @@ We've made a significant upgrade to Add-to-App, the feature that allows you to i
 
 [2174]({{site.github}}/flutter/plugins/pull/2174) [url_launcher] Enable androidx and jetifier in android gradle properties
 
-[11239]({{site.github}}/flutter/engine/pull/11239) Remove dart entrypoint Intent parameter from FlutterActivity. (#38713)
+[11239]({{site.repo.engine}}/pull/11239) Remove dart entrypoint Intent parameter from FlutterActivity. (#38713)
 
-[12469]({{site.github}}/flutter/engine/pull/12469) Started asserting the FlutterEngine is running before communicating over channels.
+[12469]({{site.repo.engine}}/pull/12469) Started asserting the FlutterEngine is running before communicating over channels.
 
-[13403]({{site.github}}/flutter/engine/pull/13403) Use DartExecutor.getBinaryMessenger in FlutterNativeView instead of deprecated send methods
+[13403]({{site.repo.engine}}/pull/13403) Use DartExecutor.getBinaryMessenger in FlutterNativeView instead of deprecated send methods
 
 
 ## Material
@@ -959,168 +959,168 @@ with dark mode support. Also, we added support for
 extending the height of the Scaffold's body behind
 the app bar, which was contributed by a community member! 
 
-[36998]({{site.github}}/flutter/flutter/pull/36998) Added properties in DropdownButtonFormField to match DropdownButton
+[36998]({{site.repo.flutter}}/pull/36998) Added properties in DropdownButtonFormField to match DropdownButton
 
-[37962]({{site.github}}/flutter/flutter/pull/37962) Show search app bar theme
+[37962]({{site.repo.flutter}}/pull/37962) Show search app bar theme
 
-[38583]({{site.github}}/flutter/flutter/pull/38583) Added InheritedTheme
+[38583]({{site.repo.flutter}}/pull/38583) Added InheritedTheme
 
-[38650]({{site.github}}/flutter/flutter/pull/38650) Allow independent theming of Persistent and Modal bottom sheets
+[38650]({{site.repo.flutter}}/pull/38650) Allow independent theming of Persistent and Modal bottom sheets
 
-[38709]({{site.github}}/flutter/flutter/pull/38709) [Material] Add contentPadding property to SwitchListTile
+[38709]({{site.repo.flutter}}/pull/38709) [Material] Add contentPadding property to SwitchListTile
 
-[38726]({{site.github}}/flutter/flutter/pull/38726) Make disabled buttons/chips/text fields not be focusable.
+[38726]({{site.repo.flutter}}/pull/38726) Make disabled buttons/chips/text fields not be focusable.
 
-[38813]({{site.github}}/flutter/flutter/pull/38813) Add ToggleButtons.textStyle property
+[38813]({{site.repo.flutter}}/pull/38813) Add ToggleButtons.textStyle property
 
-[38831]({{site.github}}/flutter/flutter/pull/38831) [Material] Add clip property to bottom sheet and theme
+[38831]({{site.repo.flutter}}/pull/38831) [Material] Add clip property to bottom sheet and theme
 
-[38898]({{site.github}}/flutter/flutter/pull/38898) ToggleButtons test improvement
+[38898]({{site.repo.flutter}}/pull/38898) ToggleButtons test improvement
 
-[39144]({{site.github}}/flutter/flutter/pull/39144) Add the textAlignVertical param to TextFormField
+[39144]({{site.repo.flutter}}/pull/39144) Add the textAlignVertical param to TextFormField
 
-[39156]({{site.github}}/flutter/flutter/pull/39156) Added Scaffold.extendBodyBehindAppBar
+[39156]({{site.repo.flutter}}/pull/39156) Added Scaffold.extendBodyBehindAppBar
 
-[39299]({{site.github}}/flutter/flutter/pull/39299) Add showAboutDialog sample
+[39299]({{site.repo.flutter}}/pull/39299) Add showAboutDialog sample
 
-[39333]({{site.github}}/flutter/flutter/pull/39333) Allow independent theming of Persistent and Modal bottom sheets Background Color
+[39333]({{site.repo.flutter}}/pull/39333) Allow independent theming of Persistent and Modal bottom sheets Background Color
 
-[39433]({{site.github}}/flutter/flutter/pull/39433) Add helperMaxLines to InputDecoration and InputDecorationTheme
+[39433]({{site.repo.flutter}}/pull/39433) Add helperMaxLines to InputDecoration and InputDecorationTheme
 
-[39572]({{site.github}}/flutter/flutter/pull/39572) Prevent exception when creating a Divider borderSide
+[39572]({{site.repo.flutter}}/pull/39572) Prevent exception when creating a Divider borderSide
 
-[39583]({{site.github}}/flutter/flutter/pull/39583) Fix single action banner to ensure button alignment
+[39583]({{site.repo.flutter}}/pull/39583) Fix single action banner to ensure button alignment
 
-[39627]({{site.github}}/flutter/flutter/pull/39627) Default colorScheme data in ButtonThemeData (fix for #38655)
+[39627]({{site.repo.flutter}}/pull/39627) Default colorScheme data in ButtonThemeData (fix for #38655)
 
-[39632]({{site.github}}/flutter/flutter/pull/39632) Updates to debugFillProperties to test all properties in slider.dart and slider_test.dart
+[39632]({{site.repo.flutter}}/pull/39632) Updates to debugFillProperties to test all properties in slider.dart and slider_test.dart
 
-[39903]({{site.github}}/flutter/flutter/pull/39903) Fixed passing autofocus to MaterialButton, and when rebuilding Focus widget.
+[39903]({{site.repo.flutter}}/pull/39903) Fixed passing autofocus to MaterialButton, and when rebuilding Focus widget.
 
-[39924]({{site.github}}/flutter/flutter/pull/39924) Adds DartPad option to the DartDoc snippet generator.
+[39924]({{site.repo.flutter}}/pull/39924) Adds DartPad option to the DartDoc snippet generator.
 
-[40390]({{site.github}}/flutter/flutter/pull/40390) a11y improvements for textfield
+[40390]({{site.repo.flutter}}/pull/40390) a11y improvements for textfield
 
-[40608]({{site.github}}/flutter/flutter/pull/40608) Add the option to configure a chip check mark color
+[40608]({{site.repo.flutter}}/pull/40608) Add the option to configure a chip check mark color
 
-[40641]({{site.github}}/flutter/flutter/pull/40641) Add onLongPress to Buttons
+[40641]({{site.repo.flutter}}/pull/40641) Add onLongPress to Buttons
 
-[40665]({{site.github}}/flutter/flutter/pull/40665) Fix CupertinoTextField and TextField ToolbarOptions not changing
+[40665]({{site.repo.flutter}}/pull/40665) Fix CupertinoTextField and TextField ToolbarOptions not changing
 
-[40713]({{site.github}}/flutter/flutter/pull/40713) Material textselection context menu cannot disable select all
+[40713]({{site.repo.flutter}}/pull/40713) Material textselection context menu cannot disable select all
 
-[40994]({{site.github}}/flutter/flutter/pull/40994) Fix the ThemeData.copyWith toggleButtonsTheme argument type
+[40994]({{site.repo.flutter}}/pull/40994) Fix the ThemeData.copyWith toggleButtonsTheme argument type
 
-[41120]({{site.github}}/flutter/flutter/pull/41120) Dropdown Menu layout respects menu items intrinsic sizes
+[41120]({{site.repo.flutter}}/pull/41120) Dropdown Menu layout respects menu items intrinsic sizes
 
-[41150]({{site.github}}/flutter/flutter/pull/41150) Rebuild modal routes when the value of userGestureInProgress changes
+[41150]({{site.repo.flutter}}/pull/41150) Rebuild modal routes when the value of userGestureInProgress changes
 
-[41172]({{site.github}}/flutter/flutter/pull/41172) fix some bad indentations
+[41172]({{site.repo.flutter}}/pull/41172) fix some bad indentations
 
-[41320]({{site.github}}/flutter/flutter/pull/41320) [Material] Remove text ripple from TextFields
+[41320]({{site.repo.flutter}}/pull/41320) [Material] Remove text ripple from TextFields
 
-[41338]({{site.github}}/flutter/flutter/pull/41338) Fix ReorderableListView's use of child keys (#41334)
+[41338]({{site.repo.flutter}}/pull/41338) Fix ReorderableListView's use of child keys (#41334)
 
-[41463]({{site.github}}/flutter/flutter/pull/41463) [Chip] Make sure InkResponse is in the foreground on delete for chips with background color
+[41463]({{site.repo.flutter}}/pull/41463) [Chip] Make sure InkResponse is in the foreground on delete for chips with background color
 
-[41625]({{site.github}}/flutter/flutter/pull/41625) Update DefaultTabController to allow for zero tabs
+[41625]({{site.repo.flutter}}/pull/41625) Update DefaultTabController to allow for zero tabs
 
-[41629]({{site.github}}/flutter/flutter/pull/41629) [Material] Fix Tooltip to respect ambient Directionality
+[41629]({{site.repo.flutter}}/pull/41629) [Material] Fix Tooltip to respect ambient Directionality
 
-[41632]({{site.github}}/flutter/flutter/pull/41632) fix confusing 'popupTheme' variable name in a MaterialBannerTheme method
+[41632]({{site.repo.flutter}}/pull/41632) fix confusing 'popupTheme' variable name in a MaterialBannerTheme method
 
-[41640]({{site.github}}/flutter/flutter/pull/41640) some formatting changes
+[41640]({{site.repo.flutter}}/pull/41640) some formatting changes
 
-[41650]({{site.github}}/flutter/flutter/pull/41650) DropdownButton.style API doc example for differing button and menu item text styles
+[41650]({{site.repo.flutter}}/pull/41650) DropdownButton.style API doc example for differing button and menu item text styles
 
-[41864]({{site.github}}/flutter/flutter/pull/41864) Update BottomAppBar to use elevation overlays when in a dark theme
+[41864]({{site.repo.flutter}}/pull/41864) Update BottomAppBar to use elevation overlays when in a dark theme
 
-[41972]({{site.github}}/flutter/flutter/pull/41972) Add enableFeedback param to MaterialButton, RawMaterialButton and IconButton
+[41972]({{site.repo.flutter}}/pull/41972) Add enableFeedback param to MaterialButton, RawMaterialButton and IconButton
 
-[42033]({{site.github}}/flutter/flutter/pull/42033) Reprise: Dropdown Menu layout respects menu items intrinsic sizes
+[42033]({{site.repo.flutter}}/pull/42033) Reprise: Dropdown Menu layout respects menu items intrinsic sizes
 
-[42189]({{site.github}}/flutter/flutter/pull/42189) Fix regression with ModalBottomSheets not responding to changes in theme
+[42189]({{site.repo.flutter}}/pull/42189) Fix regression with ModalBottomSheets not responding to changes in theme
 
-[42366]({{site.github}}/flutter/flutter/pull/42366) TextStyle.fontFamily should override fontFamily parameter in ThemeData
+[42366]({{site.repo.flutter}}/pull/42366) TextStyle.fontFamily should override fontFamily parameter in ThemeData
 
-[42404]({{site.github}}/flutter/flutter/pull/42404) Add isDismissible configuration for showModalBottomSheet
+[42404]({{site.repo.flutter}}/pull/42404) Add isDismissible configuration for showModalBottomSheet
 
-[42482]({{site.github}}/flutter/flutter/pull/42482) Only dismiss dropdowns if the orientation changes, not the size.
+[42482]({{site.repo.flutter}}/pull/42482) Only dismiss dropdowns if the orientation changes, not the size.
 
-[42554]({{site.github}}/flutter/flutter/pull/42554) Fix route focusing and autofocus when reparenting focus nodes.
+[42554]({{site.repo.flutter}}/pull/42554) Fix route focusing and autofocus when reparenting focus nodes.
 
-[42613]({{site.github}}/flutter/flutter/pull/42613) Fix Tooltip implementation of PopupMenuButton
+[42613]({{site.repo.flutter}}/pull/42613) Fix Tooltip implementation of PopupMenuButton
 
-[42683]({{site.github}}/flutter/flutter/pull/42683) Optimize focus operations by caching descendants and ancestors.
+[42683]({{site.repo.flutter}}/pull/42683) Optimize focus operations by caching descendants and ancestors.
 
-[42779]({{site.github}}/flutter/flutter/pull/42779) Fix chip ripple bug — No longer two ripples
+[42779]({{site.repo.flutter}}/pull/42779) Fix chip ripple bug — No longer two ripples
 
-[42811]({{site.github}}/flutter/flutter/pull/42811) Add a Focus node to the DropdownButton, and adds an activation action for it.
+[42811]({{site.repo.flutter}}/pull/42811) Add a Focus node to the DropdownButton, and adds an activation action for it.
 
-[42936]({{site.github}}/flutter/flutter/pull/42936) Support AppBars with jumbo titles
+[42936]({{site.repo.flutter}}/pull/42936) Support AppBars with jumbo titles
 
-[43213]({{site.github}}/flutter/flutter/pull/43213) Add focus nodes, hover, and shortcuts to switches, checkboxes, and radio buttons.
+[43213]({{site.repo.flutter}}/pull/43213) Add focus nodes, hover, and shortcuts to switches, checkboxes, and radio buttons.
 
-[43422]({{site.github}}/flutter/flutter/pull/43422) trivial fixed AboutListTile having an empty icon placeholder when no icon set.
+[43422]({{site.repo.flutter}}/pull/43422) trivial fixed AboutListTile having an empty icon placeholder when no icon set.
 
-[43511]({{site.github}}/flutter/flutter/pull/43511) Improve DropdownButton assert message
+[43511]({{site.repo.flutter}}/pull/43511) Improve DropdownButton assert message
 
-[43526]({{site.github}}/flutter/flutter/pull/43526) Change PopupMenuButton.icon type to Widget
+[43526]({{site.repo.flutter}}/pull/43526) Change PopupMenuButton.icon type to Widget
 
-[43722]({{site.github}}/flutter/flutter/pull/43722) Make selected item get focus when dropdown is opened
+[43722]({{site.repo.flutter}}/pull/43722) Make selected item get focus when dropdown is opened
 
-[43843]({{site.github}}/flutter/flutter/pull/43843) Remove print and fix code formatting
+[43843]({{site.repo.flutter}}/pull/43843) Remove print and fix code formatting
 
-[43848]({{site.github}}/flutter/flutter/pull/43848) Don't allow Disabled InkWells to be focusable
+[43848]({{site.repo.flutter}}/pull/43848) Don't allow Disabled InkWells to be focusable
 
-[43859]({{site.github}}/flutter/flutter/pull/43859) Add convenience accessor for primaryFocus
+[43859]({{site.repo.flutter}}/pull/43859) Add convenience accessor for primaryFocus
 
-[43946]({{site.github}}/flutter/flutter/pull/43946) Adding subtitle to ExpansionTile
+[43946]({{site.repo.flutter}}/pull/43946) Adding subtitle to ExpansionTile
 
-[43981]({{site.github}}/flutter/flutter/pull/43981) Fix typo in app_bar.dart
+[43981]({{site.repo.flutter}}/pull/43981) Fix typo in app_bar.dart
 
-[44029]({{site.github}}/flutter/flutter/pull/44029) Use alphabetic baselines for layout of InputDecorator
+[44029]({{site.repo.flutter}}/pull/44029) Use alphabetic baselines for layout of InputDecorator
 
-[44068]({{site.github}}/flutter/flutter/pull/44068) Fix typo in tabs.dart
+[44068]({{site.repo.flutter}}/pull/44068) Fix typo in tabs.dart
 
-[44076]({{site.github}}/flutter/flutter/pull/44076) Typo on comments
+[44076]({{site.repo.flutter}}/pull/44076) Typo on comments
 
-[44160]({{site.github}}/flutter/flutter/pull/44160) Wire selectedItemBuilder through DropdownButtonFormField
+[44160]({{site.repo.flutter}}/pull/44160) Wire selectedItemBuilder through DropdownButtonFormField
 
-[44296]({{site.github}}/flutter/flutter/pull/44296) ModalBarrier and Drawer barrier prevents mouse events
+[44296]({{site.repo.flutter}}/pull/44296) ModalBarrier and Drawer barrier prevents mouse events
 
-[44736]({{site.github}}/flutter/flutter/pull/44736) Check in new diffs to material localizations
+[44736]({{site.repo.flutter}}/pull/44736) Check in new diffs to material localizations
 
-[44787]({{site.github}}/flutter/flutter/pull/44787) Fix snippets to include element ID in the output sample.
+[44787]({{site.repo.flutter}}/pull/44787) Fix snippets to include element ID in the output sample.
 
-[44867]({{site.github}}/flutter/flutter/pull/44867) FocusableActionDetector widget
+[44867]({{site.repo.flutter}}/pull/44867) FocusableActionDetector widget
 
-[45081]({{site.github}}/flutter/flutter/pull/45081) Remove duplicated expect from text field test
+[45081]({{site.repo.flutter}}/pull/45081) Remove duplicated expect from text field test
 
-[45362]({{site.github}}/flutter/flutter/pull/45362) Add widget of the week video embeddings
+[45362]({{site.repo.flutter}}/pull/45362) Add widget of the week video embeddings
 
 
 ## Text & Accessibility
 
 In Text and Accessibility, we have several enhancements in ButtonBar and AlertDialog to prevent text overflow.
 
-[40468]({{site.github}}/flutter/flutter/pull/40468) Propagate textfield character limits to semantics
+[40468]({{site.repo.flutter}}/pull/40468) Propagate textfield character limits to semantics
 
-[41730]({{site.github}}/flutter/flutter/pull/41730) Allow customization of label styles for semantics debugger
+[41730]({{site.repo.flutter}}/pull/41730) Allow customization of label styles for semantics debugger
 
-[42344]({{site.github}}/flutter/flutter/pull/42344) Add onVisible callback to snackbar.
+[42344]({{site.repo.flutter}}/pull/42344) Add onVisible callback to snackbar.
 
-[42368]({{site.github}}/flutter/flutter/pull/42368) Update android semantics test to match existing engine behavior.
+[42368]({{site.repo.flutter}}/pull/42368) Update android semantics test to match existing engine behavior.
 
-[43193]({{site.github}}/flutter/flutter/pull/43193) ButtonBar aligns in column when it overflows horizontally
+[43193]({{site.repo.flutter}}/pull/43193) ButtonBar aligns in column when it overflows horizontally
 
-[43226]({{site.github}}/flutter/flutter/pull/43226) Implement AlertDialog title/content overflow scroll
+[43226]({{site.repo.flutter}}/pull/43226) Implement AlertDialog title/content overflow scroll
 
-[38573]({{site.github}}/flutter/flutter/pull/38573) Clamp scrollOffset to prevent textfield bouncing
+[38573]({{site.repo.flutter}}/pull/38573) Clamp scrollOffset to prevent textfield bouncing
 
-[41108]({{site.github}}/flutter/flutter/pull/41108) Fixing a text editing bug happening when text field changes.
+[41108]({{site.repo.flutter}}/pull/41108) Fixing a text editing bug happening when text field changes.
 
-[44605]({{site.github}}/flutter/flutter/pull/44605) Changing RenderEditable.textAlign doesn't break hot reload anymore
+[44605]({{site.repo.flutter}}/pull/44605) Changing RenderEditable.textAlign doesn't break hot reload anymore
 
 
 ## Animation & Scroll
@@ -1130,228 +1130,228 @@ For animation, we released the
 for building custom implicit animations. For more information,
 check out this [TweenAnimationBuilder video](https://www.youtube.com/watch?reload=9&v=6KiPEqzJIKQ) on Youtube.  
 
-[38317]({{site.github}}/flutter/flutter/pull/38317) TweenAnimationBuilder for building custom animations without managing an AnimationController
+[38317]({{site.repo.flutter}}/pull/38317) TweenAnimationBuilder for building custom animations without managing an AnimationController
 
-[38979]({{site.github}}/flutter/flutter/pull/38979) Adding onEnd callback to implicit animated widgets
+[38979]({{site.repo.flutter}}/pull/38979) Adding onEnd callback to implicit animated widgets
 
-[43756]({{site.github}}/flutter/flutter/pull/43756) Mark routes as opaque when added without animation
+[43756]({{site.repo.flutter}}/pull/43756) Mark routes as opaque when added without animation
 
-[39142]({{site.github}}/flutter/flutter/pull/39142) fix sliverfixedextent with sliverchildbuilderdelegate does not correc…
+[39142]({{site.repo.flutter}}/pull/39142) fix sliverfixedextent with sliverchildbuilderdelegate does not correc…
 
-[44965]({{site.github}}/flutter/flutter/pull/44965) Scroll scrollable to keep focused control visible.
+[44965]({{site.repo.flutter}}/pull/44965) Scroll scrollable to keep focused control visible.
 
 
 ## Web
 
 We increased our support for web, moving it from the dev channel to the beta channel. For more details, please check [web support blog post](https://medium.com/flutter/web-support-for-flutter-goes-beta-35b64a1217c0).
 
-[37819]({{site.github}}/flutter/flutter/pull/37819) Add HtmlElementView (the Flutter Web platform view)
+[37819]({{site.repo.flutter}}/pull/37819) Add HtmlElementView (the Flutter Web platform view)
 
-[38723]({{site.github}}/flutter/flutter/pull/38723) Handle compilation failures from web application
+[38723]({{site.repo.flutter}}/pull/38723) Handle compilation failures from web application
 
-[38823]({{site.github}}/flutter/flutter/pull/38823) Print service url when connecting to web applications
+[38823]({{site.repo.flutter}}/pull/38823) Print service url when connecting to web applications
 
-[39006]({{site.github}}/flutter/flutter/pull/39006) Add web workflow to default validators
+[39006]({{site.repo.flutter}}/pull/39006) Add web workflow to default validators
 
-[39066]({{site.github}}/flutter/flutter/pull/39066) Kill resident runner on browser disconnect.
+[39066]({{site.repo.flutter}}/pull/39066) Kill resident runner on browser disconnect.
 
-[39073]({{site.github}}/flutter/flutter/pull/39073) Add profile mode to flutter web applications
+[39073]({{site.repo.flutter}}/pull/39073) Add profile mode to flutter web applications
 
-[39189]({{site.github}}/flutter/flutter/pull/39189) fix source map loading and service protocol for flutter web
+[39189]({{site.repo.flutter}}/pull/39189) fix source map loading and service protocol for flutter web
 
-[39344]({{site.github}}/flutter/flutter/pull/39344) Upstream changes necessary for text editing in flutter web
+[39344]({{site.repo.flutter}}/pull/39344) Upstream changes necessary for text editing in flutter web
 
-[39364]({{site.github}}/flutter/flutter/pull/39364) Correct libraries path and remove dart:io and dart:isolate for dart platform
+[39364]({{site.repo.flutter}}/pull/39364) Correct libraries path and remove dart:io and dart:isolate for dart platform
 
-[39414]({{site.github}}/flutter/flutter/pull/39414) Make sure profile is forwarded through build web command
+[39414]({{site.repo.flutter}}/pull/39414) Make sure profile is forwarded through build web command
 
-[39462]({{site.github}}/flutter/flutter/pull/39462) Remove run in shell and add unit test for chrome launching
+[39462]({{site.repo.flutter}}/pull/39462) Remove run in shell and add unit test for chrome launching
 
-[39543]({{site.github}}/flutter/flutter/pull/39543) create .dart_tool if it is missing
+[39543]({{site.repo.flutter}}/pull/39543) create .dart_tool if it is missing
 
-[39628]({{site.github}}/flutter/flutter/pull/39628) Automatically generated registrants for web plugins
+[39628]({{site.repo.flutter}}/pull/39628) Automatically generated registrants for web plugins
 
-[39748]({{site.github}}/flutter/flutter/pull/39748) print launching on device message
+[39748]({{site.repo.flutter}}/pull/39748) print launching on device message
 
-[39751]({{site.github}}/flutter/flutter/pull/39751) Minor cleanup and prevent multiple exit
+[39751]({{site.repo.flutter}}/pull/39751) Minor cleanup and prevent multiple exit
 
-[39752]({{site.github}}/flutter/flutter/pull/39752) Add delay to recompile request for web
+[39752]({{site.repo.flutter}}/pull/39752) Add delay to recompile request for web
 
-[39756]({{site.github}}/flutter/flutter/pull/39756) remove web flag from create
+[39756]({{site.repo.flutter}}/pull/39756) remove web flag from create
 
-[39774]({{site.github}}/flutter/flutter/pull/39774) workaround for mangled web sdk source map packages
+[39774]({{site.repo.flutter}}/pull/39774) workaround for mangled web sdk source map packages
 
-[39910]({{site.github}}/flutter/flutter/pull/39910) If there are no web plugins, don't generate a plugin registrant
+[39910]({{site.repo.flutter}}/pull/39910) If there are no web plugins, don't generate a plugin registrant
 
-[39950]({{site.github}}/flutter/flutter/pull/39950) Register reload sources call and make 'r' restart for web
+[39950]({{site.repo.flutter}}/pull/39950) Register reload sources call and make 'r' restart for web
 
-[39951]({{site.github}}/flutter/flutter/pull/39951) Add "web" server device to allow running flutter for web on arbitrary browsers
+[39951]({{site.repo.flutter}}/pull/39951) Add "web" server device to allow running flutter for web on arbitrary browsers
 
-[39983]({{site.github}}/flutter/flutter/pull/39983) Update the supported library set for Flutter for web
+[39983]({{site.repo.flutter}}/pull/39983) Update the supported library set for Flutter for web
 
-[39999]({{site.github}}/flutter/flutter/pull/39999) Disable the performance overlay for web
+[39999]({{site.repo.flutter}}/pull/39999) Disable the performance overlay for web
 
-[40175]({{site.github}}/flutter/flutter/pull/40175) Ensure we send hot restart events for flutter web
+[40175]({{site.repo.flutter}}/pull/40175) Ensure we send hot restart events for flutter web
 
-[40191]({{site.github}}/flutter/flutter/pull/40191) add host and port to run configuration for web devices
+[40191]({{site.repo.flutter}}/pull/40191) add host and port to run configuration for web devices
 
-[40301]({{site.github}}/flutter/flutter/pull/40301) Allow skipping webOnlyInitializePlatform in Flutter for Web
+[40301]({{site.repo.flutter}}/pull/40301) Allow skipping webOnlyInitializePlatform in Flutter for Web
 
-[40370]({{site.github}}/flutter/flutter/pull/40370) rename port to web-port and hostname to web-hostname
+[40370]({{site.repo.flutter}}/pull/40370) rename port to web-port and hostname to web-hostname
 
-[40465]({{site.github}}/flutter/flutter/pull/40465) Pass --web-hostname and --web-port to release mode debugging options
+[40465]({{site.repo.flutter}}/pull/40465) Pass --web-hostname and --web-port to release mode debugging options
 
-[40627]({{site.github}}/flutter/flutter/pull/40627) Allow skipping chrome launch with --no-web-browser-launch
+[40627]({{site.repo.flutter}}/pull/40627) Allow skipping chrome launch with --no-web-browser-launch
 
-[40757]({{site.github}}/flutter/flutter/pull/40757) Fix visibility of web server device when Chrome is not available
+[40757]({{site.repo.flutter}}/pull/40757) Fix visibility of web server device when Chrome is not available
 
-[41222]({{site.github}}/flutter/flutter/pull/41222) Copy archived js part files out of dart_tool directory
+[41222]({{site.repo.flutter}}/pull/41222) Copy archived js part files out of dart_tool directory
 
-[41347]({{site.github}}/flutter/flutter/pull/41347) Fix timing issues in initialization of web resident runner
+[41347]({{site.repo.flutter}}/pull/41347) Fix timing issues in initialization of web resident runner
 
-[41386]({{site.github}}/flutter/flutter/pull/41386) Serve every html file under web
+[41386]({{site.repo.flutter}}/pull/41386) Serve every html file under web
 
-[41397]({{site.github}}/flutter/flutter/pull/41397) Keymap for Web
+[41397]({{site.repo.flutter}}/pull/41397) Keymap for Web
 
-[41441]({{site.github}}/flutter/flutter/pull/41441) Exit resident web runner on compilation failure
+[41441]({{site.repo.flutter}}/pull/41441) Exit resident web runner on compilation failure
 
-[41545]({{site.github}}/flutter/flutter/pull/41545) Add analytics tracking for compile and refresh times for Flutter Web
+[41545]({{site.repo.flutter}}/pull/41545) Add analytics tracking for compile and refresh times for Flutter Web
 
-[41618]({{site.github}}/flutter/flutter/pull/41618) Rename Server/web to Headless Server/headless-server
+[41618]({{site.repo.flutter}}/pull/41618) Rename Server/web to Headless Server/headless-server
 
-[41695]({{site.github}}/flutter/flutter/pull/41695) Add more information to cannot find Chrome message
+[41695]({{site.repo.flutter}}/pull/41695) Add more information to cannot find Chrome message
 
-[41815]({{site.github}}/flutter/flutter/pull/41815) [web] Make it clear that lowercase "r" can also perform hot restart
+[41815]({{site.repo.flutter}}/pull/41815) [web] Make it clear that lowercase "r" can also perform hot restart
 
-[41906]({{site.github}}/flutter/flutter/pull/41906) Ensure plugin registrants are generated in build_web
+[41906]({{site.repo.flutter}}/pull/41906) Ensure plugin registrants are generated in build_web
 
-[41996]({{site.github}}/flutter/flutter/pull/41996) [web] Always send the route name even if it's null
+[41996]({{site.repo.flutter}}/pull/41996) [web] Always send the route name even if it's null
 
-[42144]({{site.github}}/flutter/flutter/pull/42144) Don't eagerly call runMain when --start-paused is provided to web application
+[42144]({{site.repo.flutter}}/pull/42144) Don't eagerly call runMain when --start-paused is provided to web application
 
-[42260]({{site.github}}/flutter/flutter/pull/42260) Small cleanup of web code
+[42260]({{site.repo.flutter}}/pull/42260) Small cleanup of web code
 
-[42289]({{site.github}}/flutter/flutter/pull/42289) Ensure precache web works on dev branch
+[42289]({{site.repo.flutter}}/pull/42289) Ensure precache web works on dev branch
 
-[42531]({{site.github}}/flutter/flutter/pull/42531) Print correct hostname when web server is launched
+[42531]({{site.repo.flutter}}/pull/42531) Print correct hostname when web server is launched
 
-[42676]({{site.github}}/flutter/flutter/pull/42676) [web] Update web runner message with flutter.dev/web
+[42676]({{site.repo.flutter}}/pull/42676) [web] Update web runner message with flutter.dev/web
 
-[42701]({{site.github}}/flutter/flutter/pull/42701) serve correct content type from debug server
+[42701]({{site.repo.flutter}}/pull/42701) serve correct content type from debug server
 
-[42857]({{site.github}}/flutter/flutter/pull/42857) Fix progress indicators for release/profile builds of web.
+[42857]({{site.repo.flutter}}/pull/42857) Fix progress indicators for release/profile builds of web.
 
-[42951]({{site.github}}/flutter/flutter/pull/42951) implement debugTogglePlatform for the web
+[42951]({{site.repo.flutter}}/pull/42951) implement debugTogglePlatform for the web
 
-[42970]({{site.github}}/flutter/flutter/pull/42970) Rename headless server to web server
+[42970]({{site.repo.flutter}}/pull/42970) Rename headless server to web server
 
-[43214]({{site.github}}/flutter/flutter/pull/43214) For --profile builds on web, still use -O4 but unminified names.
+[43214]({{site.repo.flutter}}/pull/43214) For --profile builds on web, still use -O4 but unminified names.
 
-[43573]({{site.github}}/flutter/flutter/pull/43573) Catch MissingPortFile from web tooling.
+[43573]({{site.repo.flutter}}/pull/43573) Catch MissingPortFile from web tooling.
 
-[43576]({{site.github}}/flutter/flutter/pull/43576) Enable usage of experimental incremental compiler for web
+[43576]({{site.repo.flutter}}/pull/43576) Enable usage of experimental incremental compiler for web
 
-[44028]({{site.github}}/flutter/flutter/pull/44028) Support --no-resident on the web
+[44028]({{site.repo.flutter}}/pull/44028) Support --no-resident on the web
 
-[44263]({{site.github}}/flutter/flutter/pull/44263) Allow web server device to use extension if started with --start-paused
+[44263]({{site.repo.flutter}}/pull/44263) Allow web server device to use extension if started with --start-paused
 
-[44268]({{site.github}}/flutter/flutter/pull/44268) Switch from using app.progress to app.webLaunchUrl for passing web launch urls
+[44268]({{site.repo.flutter}}/pull/44268) Switch from using app.progress to app.webLaunchUrl for passing web launch urls
 
-[44421]({{site.github}}/flutter/flutter/pull/44421) switch web test to macOS
+[44421]({{site.repo.flutter}}/pull/44421) switch web test to macOS
 
-[44744]({{site.github}}/flutter/flutter/pull/44744) Ensure web-server does not force usage of dwds
+[44744]({{site.repo.flutter}}/pull/44744) Ensure web-server does not force usage of dwds
 
-[44746]({{site.github}}/flutter/flutter/pull/44746) Remove chrome device web integration test
+[44746]({{site.repo.flutter}}/pull/44746) Remove chrome device web integration test
 
-[44830]({{site.github}}/flutter/flutter/pull/44830) Update manual_tests to be able to run on macOS/web
+[44830]({{site.repo.flutter}}/pull/44830) Update manual_tests to be able to run on macOS/web
 
-[45145]({{site.github}}/flutter/flutter/pull/45145) cache sdkNameAndVersion logic for web devices
+[45145]({{site.repo.flutter}}/pull/45145) cache sdkNameAndVersion logic for web devices
 
-[45286]({{site.github}}/flutter/flutter/pull/45286) Fix experimental incremental web compiler for Windows
+[45286]({{site.repo.flutter}}/pull/45286) Fix experimental incremental web compiler for Windows
 
-[11360]({{site.github}}/flutter/engine/pull/11360) build legacy web SDK
+[11360]({{site.repo.engine}}/pull/11360) build legacy web SDK
 
-[11421]({{site.github}}/flutter/engine/pull/11421) sync Flutter Web engine to the latest
+[11421]({{site.repo.engine}}/pull/11421) sync Flutter Web engine to the latest
 
-[11732]({{site.github}}/flutter/engine/pull/11732) last flutter web sync: cc38319841
+[11732]({{site.repo.engine}}/pull/11732) last flutter web sync: cc38319841
 
-[11796]({{site.github}}/flutter/engine/pull/11796) Provide a hook for a plugin handler to receive messages on the web
+[11796]({{site.repo.engine}}/pull/11796) Provide a hook for a plugin handler to receive messages on the web
 
-[12161]({{site.github}}/flutter/engine/pull/12161) Ensure that the web image ImageShader implements Shader
+[12161]({{site.repo.engine}}/pull/12161) Ensure that the web image ImageShader implements Shader
 
-[12335]({{site.github}}/flutter/engine/pull/12335) [Web] Implement dark mode support for web
+[12335]({{site.repo.engine}}/pull/12335) [Web] Implement dark mode support for web
 
-[12445]({{site.github}}/flutter/engine/pull/12445) [web] filter test targets; cache host.dart compilation
+[12445]({{site.repo.engine}}/pull/12445) [web] filter test targets; cache host.dart compilation
 
-[12712]({{site.github}}/flutter/engine/pull/12712) Support correct keymap for web
+[12712]({{site.repo.engine}}/pull/12712) Support correct keymap for web
 
-[12747]({{site.github}}/flutter/engine/pull/12747) Add web implementation for channel_buffers.dart
+[12747]({{site.repo.engine}}/pull/12747) Add web implementation for channel_buffers.dart
 
-[12753]({{site.github}}/flutter/engine/pull/12753) [web] Don't require felt to be in PATH
+[12753]({{site.repo.engine}}/pull/12753) [web] Don't require felt to be in PATH
 
-[12794]({{site.github}}/flutter/engine/pull/12794) [web] Add support for path transform
+[12794]({{site.repo.engine}}/pull/12794) [web] Add support for path transform
 
-[12811]({{site.github}}/flutter/engine/pull/12811) [web] Implement basic radial gradient (TileMode.clamp, no transform)
+[12811]({{site.repo.engine}}/pull/12811) [web] Implement basic radial gradient (TileMode.clamp, no transform)
 
-[13003]({{site.github}}/flutter/engine/pull/13003) [web] Update the url when route is replaced
+[13003]({{site.repo.engine}}/pull/13003) [web] Update the url when route is replaced
 
-[13066]({{site.github}}/flutter/engine/pull/13066) [web] Add basic color per vertex drawVertices API support
+[13066]({{site.repo.engine}}/pull/13066) [web] Add basic color per vertex drawVertices API support
 
-[13141]({{site.github}}/flutter/engine/pull/13141) Enable/tweak web sdk source maps
+[13141]({{site.repo.engine}}/pull/13141) Enable/tweak web sdk source maps
 
-[13161]({{site.github}}/flutter/engine/pull/13161) Enable/tweak web sdk source maps, take 2
+[13161]({{site.repo.engine}}/pull/13161) Enable/tweak web sdk source maps, take 2
 
-[13187]({{site.github}}/flutter/engine/pull/13187) [web] Environment variable to disable felt snapshot
+[13187]({{site.repo.engine}}/pull/13187) [web] Environment variable to disable felt snapshot
 
-[13190]({{site.github}}/flutter/engine/pull/13190) [web] Fix canvas reuse metrics. Refactor drawVertices code.
+[13190]({{site.repo.engine}}/pull/13190) [web] Fix canvas reuse metrics. Refactor drawVertices code.
 
-[13259]({{site.github}}/flutter/engine/pull/13259) [web] Support -j to use goma in felt build
+[13259]({{site.repo.engine}}/pull/13259) [web] Support -j to use goma in felt build
 
-[13268]({{site.github}}/flutter/engine/pull/13268) [web] Support input action
+[13268]({{site.repo.engine}}/pull/13268) [web] Support input action
 
-[13272]({{site.github}}/flutter/engine/pull/13272) [web] [test] Adding firefox install functionality to the test platform
+[13272]({{site.repo.engine}}/pull/13272) [web] [test] Adding firefox install functionality to the test platform
 
-[13296]({{site.github}}/flutter/engine/pull/13296) [web] Cupertino dynamic color fix.
+[13296]({{site.repo.engine}}/pull/13296) [web] Cupertino dynamic color fix.
 
-[13359]({{site.github}}/flutter/engine/pull/13359) Web: fix Color subclass handling
+[13359]({{site.repo.engine}}/pull/13359) Web: fix Color subclass handling
 
-[13462]({{site.github}}/flutter/engine/pull/13462) [web] Get the size from visualviewport instead of window.innerHeight/innerW…
+[13462]({{site.repo.engine}}/pull/13462) [web] Get the size from visualviewport instead of window.innerHeight/innerW…
 
-[13483]({{site.github}}/flutter/engine/pull/13483) web: fix Paragraph.getBoxesForRange for zero-length ranges
+[13483]({{site.repo.engine}}/pull/13483) web: fix Paragraph.getBoxesForRange for zero-length ranges
 
-[13634]({{site.github}}/flutter/engine/pull/13634) [web] Ignore changes in *.ttf files in felt build watch mode
+[13634]({{site.repo.engine}}/pull/13634) [web] Ignore changes in *.ttf files in felt build watch mode
 
-[13699]({{site.github}}/flutter/engine/pull/13699) [web] Don't send keyboard events from text fields to flutter
+[13699]({{site.repo.engine}}/pull/13699) [web] Don't send keyboard events from text fields to flutter
 
-[13722]({{site.github}}/flutter/engine/pull/13722) [web] Proper support for text field's obscureText
+[13722]({{site.repo.engine}}/pull/13722) [web] Proper support for text field's obscureText
 
-[13741]({{site.github}}/flutter/engine/pull/13741) [web] Refactor text editing to handle any order of platform messages gracefully
+[13741]({{site.repo.engine}}/pull/13741) [web] Refactor text editing to handle any order of platform messages gracefully
 
-[13748]({{site.github}}/flutter/engine/pull/13748) [web] Support gif/webp animations, Speed up image drawing in BitmapCanvas.
+[13748]({{site.repo.engine}}/pull/13748) [web] Support gif/webp animations, Speed up image drawing in BitmapCanvas.
 
-[13769]({{site.github}}/flutter/engine/pull/13769) [web] Implement TextStyle.shadows
+[13769]({{site.repo.engine}}/pull/13769) [web] Implement TextStyle.shadows
 
-[13779]({{site.github}}/flutter/engine/pull/13779) [web] Fix path to svg for drrect
+[13779]({{site.repo.engine}}/pull/13779) [web] Fix path to svg for drrect
 
-[13802]({{site.github}}/flutter/engine/pull/13802) [web] Fix selectable text rendering
+[13802]({{site.repo.engine}}/pull/13802) [web] Fix selectable text rendering
 
-[13809]({{site.github}}/flutter/engine/pull/13809) [web] Fix blendmode for images
+[13809]({{site.repo.engine}}/pull/13809) [web] Fix blendmode for images
 
-[13860]({{site.github}}/flutter/engine/pull/13860) [web] Change canvas sibling transforms to 3d with z=0 to get around canvas rendering bug.
+[13860]({{site.repo.engine}}/pull/13860) [web] Change canvas sibling transforms to 3d with z=0 to get around canvas rendering bug.
 
-[13901]({{site.github}}/flutter/engine/pull/13901) [web] Fix single line bitmap canvas text shadow
+[13901]({{site.repo.engine}}/pull/13901) [web] Fix single line bitmap canvas text shadow
 
-[13909]({{site.github}}/flutter/engine/pull/13909) [web] Implement PathMetrics.length
+[13909]({{site.repo.engine}}/pull/13909) [web] Implement PathMetrics.length
 
-[13922]({{site.github}}/flutter/engine/pull/13922) [web] Flutter for web autocorrect support
+[13922]({{site.repo.engine}}/pull/13922) [web] Flutter for web autocorrect support
 
-[13929]({{site.github}}/flutter/engine/pull/13929) [web] Allow users to enable canvas text measurement
+[13929]({{site.repo.engine}}/pull/13929) [web] Allow users to enable canvas text measurement
 
-[13940]({{site.github}}/flutter/engine/pull/13940) [web] Fix Edge detection for correct dom_renderer reset
+[13940]({{site.repo.engine}}/pull/13940) [web] Fix Edge detection for correct dom_renderer reset
 
-[13960]({{site.github}}/flutter/engine/pull/13960) [web] Fix default line-height issue for Firefox
+[13960]({{site.repo.engine}}/pull/13960) [web] Fix default line-height issue for Firefox
 
-[13981]({{site.github}}/flutter/engine/pull/13981) [web] use Element.nodes instead of Element.children in text layout
+[13981]({{site.repo.engine}}/pull/13981) [web] use Element.nodes instead of Element.children in text layout
 
 [2119]({{site.github}}/flutter/plugins/pull/2119) Add web url launcher
 
@@ -1360,977 +1360,977 @@ We increased our support for web, moving it from the dev channel to the beta cha
 
 We are also moving macOS support from tech preview to alpha,
 enabling it in the dev channel. For more details, see the
-[Flutter wiki]({{site.github}}/flutter/flutter/wiki/Desktop-shells).
+[Flutter wiki]({{site.repo.flutter}}/wiki/Desktop-shells).
 
-[37901]({{site.github}}/flutter/flutter/pull/37901) [macos] Check for special keys before creating a logical key
+[37901]({{site.repo.flutter}}/pull/37901) [macos] Check for special keys before creating a logical key
 
-[38748]({{site.github}}/flutter/flutter/pull/38748) Create correctly structured framework for macOS
+[38748]({{site.repo.flutter}}/pull/38748) Create correctly structured framework for macOS
 
-[38858]({{site.github}}/flutter/flutter/pull/38858) Use GLFW-name artifacts on Windows and Linux
+[38858]({{site.repo.flutter}}/pull/38858) Use GLFW-name artifacts on Windows and Linux
 
-[38909]({{site.github}}/flutter/flutter/pull/38909) Add support for macOS release/profile mode (3 of 3)
+[38909]({{site.repo.flutter}}/pull/38909) Add support for macOS release/profile mode (3 of 3)
 
-[39017]({{site.github}}/flutter/flutter/pull/39017) Add "OneSequenceRecognizer.resolvePointer". Fix DragGestureRecognizer crash on multiple pointers
+[39017]({{site.repo.flutter}}/pull/39017) Add "OneSequenceRecognizer.resolvePointer". Fix DragGestureRecognizer crash on multiple pointers
 
-[39264]({{site.github}}/flutter/flutter/pull/39264) Add profile support on macOS
+[39264]({{site.repo.flutter}}/pull/39264) Add profile support on macOS
 
-[39432]({{site.github}}/flutter/flutter/pull/39432) Do not hide .git in zip for Windows
+[39432]({{site.repo.flutter}}/pull/39432) Do not hide .git in zip for Windows
 
-[39702]({{site.github}}/flutter/flutter/pull/39702) Fix macOS App.framework version symlink
+[39702]({{site.repo.flutter}}/pull/39702) Fix macOS App.framework version symlink
 
-[39836]({{site.github}}/flutter/flutter/pull/39836) Switch to the Win32 Windows embedding
+[39836]({{site.repo.flutter}}/pull/39836) Switch to the Win32 Windows embedding
 
-[40011]({{site.github}}/flutter/flutter/pull/40011) [windows] Searches for pre-release and 'all' Visual Studio installations
+[40011]({{site.repo.flutter}}/pull/40011) [windows] Searches for pre-release and 'all' Visual Studio installations
 
-[40186]({{site.github}}/flutter/flutter/pull/40186) Add shortcuts and actions for default focus traversal
+[40186]({{site.repo.flutter}}/pull/40186) Add shortcuts and actions for default focus traversal
 
-[40194]({{site.github}}/flutter/flutter/pull/40194) Add an ephemeral directory to Windows projects
+[40194]({{site.repo.flutter}}/pull/40194) Add an ephemeral directory to Windows projects
 
-[40197]({{site.github}}/flutter/flutter/pull/40197) [windows] Refactor to optimize vswhere queries
+[40197]({{site.repo.flutter}}/pull/40197) [windows] Refactor to optimize vswhere queries
 
-[40294]({{site.github}}/flutter/flutter/pull/40294) fix copy command and remove resolve sync for macOS assemble
+[40294]({{site.repo.flutter}}/pull/40294) fix copy command and remove resolve sync for macOS assemble
 
-[40375]({{site.github}}/flutter/flutter/pull/40375) Harden macOS build use of Xcode project getInfo
+[40375]({{site.repo.flutter}}/pull/40375) Harden macOS build use of Xcode project getInfo
 
-[40393]({{site.github}}/flutter/flutter/pull/40393) Convert build mode to lowercase in tool_backend
+[40393]({{site.repo.flutter}}/pull/40393) Convert build mode to lowercase in tool_backend
 
-[40587]({{site.github}}/flutter/flutter/pull/40587) Add an ephemeral directory for Linux
+[40587]({{site.repo.flutter}}/pull/40587) Add an ephemeral directory for Linux
 
-[40730]({{site.github}}/flutter/flutter/pull/40730) Invalidate macOS pods on plugin changes
+[40730]({{site.repo.flutter}}/pull/40730) Invalidate macOS pods on plugin changes
 
-[40851]({{site.github}}/flutter/flutter/pull/40851) Support create for macOS (app and plugin)
+[40851]({{site.repo.flutter}}/pull/40851) Support create for macOS (app and plugin)
 
-[41015]({{site.github}}/flutter/flutter/pull/41015) Add the beginnings of plugin support for Windows and Linux
+[41015]({{site.repo.flutter}}/pull/41015) Add the beginnings of plugin support for Windows and Linux
 
-[41332]({{site.github}}/flutter/flutter/pull/41332) Prevent PointerEnter[or Exit]Event from erasing event.down value
+[41332]({{site.repo.flutter}}/pull/41332) Prevent PointerEnter[or Exit]Event from erasing event.down value
 
-[41551]({{site.github}}/flutter/flutter/pull/41551) Pass Linux build mode on command line
+[41551]({{site.repo.flutter}}/pull/41551) Pass Linux build mode on command line
 
-[41612]({{site.github}}/flutter/flutter/pull/41612) AOT support for Linux Desktop I: switch Linux builds to assemble
+[41612]({{site.repo.flutter}}/pull/41612) AOT support for Linux Desktop I: switch Linux builds to assemble
 
-[41747]({{site.github}}/flutter/flutter/pull/41747) Add Profile entry to macOS Podfile
+[41747]({{site.repo.flutter}}/pull/41747) Add Profile entry to macOS Podfile
 
-[42031]({{site.github}}/flutter/flutter/pull/42031) Rewrite MouseTracker's tracking and notifying algorithm
+[42031]({{site.repo.flutter}}/pull/42031) Rewrite MouseTracker's tracking and notifying algorithm
 
-[42235]({{site.github}}/flutter/flutter/pull/42235) Reading deviceId for RawKeyEventDataAndroid event
+[42235]({{site.repo.flutter}}/pull/42235) Reading deviceId for RawKeyEventDataAndroid event
 
-[42487]({{site.github}}/flutter/flutter/pull/42487) refactor depfile usage and update linux rule
+[42487]({{site.repo.flutter}}/pull/42487) refactor depfile usage and update linux rule
 
-[42861]({{site.github}}/flutter/flutter/pull/42861) Add repeatCount to RawKeyEventDataAndroid
+[42861]({{site.repo.flutter}}/pull/42861) Add repeatCount to RawKeyEventDataAndroid
 
-[42962]({{site.github}}/flutter/flutter/pull/42962) Remove linux-x64 unpack logic
+[42962]({{site.repo.flutter}}/pull/42962) Remove linux-x64 unpack logic
 
-[43238]({{site.github}}/flutter/flutter/pull/43238) Fixing focus traversal when the node options are empty
+[43238]({{site.repo.flutter}}/pull/43238) Fixing focus traversal when the node options are empty
 
-[43362]({{site.github}}/flutter/flutter/pull/43362) Allow rebuilding of docker image, re-enable deploy gallery macos
+[43362]({{site.repo.flutter}}/pull/43362) Allow rebuilding of docker image, re-enable deploy gallery macos
 
-[43758]({{site.github}}/flutter/flutter/pull/43758) Split desktop config fallback variable by platform
+[43758]({{site.repo.flutter}}/pull/43758) Split desktop config fallback variable by platform
 
-[44130]({{site.github}}/flutter/flutter/pull/44130) Add command key bindings to macOS text editing and fix selection.
+[44130]({{site.repo.flutter}}/pull/44130) Add command key bindings to macOS text editing and fix selection.
 
-[44410]({{site.github}}/flutter/flutter/pull/44410) Add macOS fn key support.
+[44410]({{site.repo.flutter}}/pull/44410) Add macOS fn key support.
 
-[44576]({{site.github}}/flutter/flutter/pull/44576) [ci] Use the latest Cirrus Image for macOS
+[44576]({{site.repo.flutter}}/pull/44576) [ci] Use the latest Cirrus Image for macOS
 
-[44620]({{site.github}}/flutter/flutter/pull/44620) Bump memory requirements for tool_tests-general-linux
+[44620]({{site.repo.flutter}}/pull/44620) Bump memory requirements for tool_tests-general-linux
 
-[44844]({{site.github}}/flutter/flutter/pull/44844) Properly interpret modifiers on GLFW key events
+[44844]({{site.repo.flutter}}/pull/44844) Properly interpret modifiers on GLFW key events
 
-[45264]({{site.github}}/flutter/flutter/pull/45264) Add macOS hot reload test
+[45264]({{site.repo.flutter}}/pull/45264) Add macOS hot reload test
 
-[45392]({{site.github}}/flutter/flutter/pull/45392) [ci] more resources to Windows tasks
+[45392]({{site.repo.flutter}}/pull/45392) [ci] more resources to Windows tasks
 
-[8507]({{site.github}}/flutter/engine/pull/8507) Add texture support for macOS shell.
+[8507]({{site.repo.engine}}/pull/8507) Add texture support for macOS shell.
 
-[11324]({{site.github}}/flutter/engine/pull/11324) Clean up Windows and Linux build output
+[11324]({{site.repo.engine}}/pull/11324) Clean up Windows and Linux build output
 
-[11327]({{site.github}}/flutter/engine/pull/11327) [Windows] Update API for alternative Windows shell platform implementation
+[11327]({{site.repo.engine}}/pull/11327) [Windows] Update API for alternative Windows shell platform implementation
 
-[11380]({{site.github}}/flutter/engine/pull/11380) Use App.framework in macOS FlutterDartProject
+[11380]({{site.repo.engine}}/pull/11380) Use App.framework in macOS FlutterDartProject
 
-[11386]({{site.github}}/flutter/engine/pull/11386) Allow non-resizable windows in GLFW embedding
+[11386]({{site.repo.engine}}/pull/11386) Allow non-resizable windows in GLFW embedding
 
-[11475]({{site.github}}/flutter/engine/pull/11475) buildfix: support build windows release/profile mode(#32746)
+[11475]({{site.repo.engine}}/pull/11475) buildfix: support build windows release/profile mode(#32746)
 
-[11828]({{site.github}}/flutter/engine/pull/11828) [Windows] Address #36422 by adding a context for async resource uploading
+[11828]({{site.repo.engine}}/pull/11828) [Windows] Address #36422 by adding a context for async resource uploading
 
-[12230]({{site.github}}/flutter/engine/pull/12230) Add an initial macOS version of FlutterAppDelegate
+[12230]({{site.repo.engine}}/pull/12230) Add an initial macOS version of FlutterAppDelegate
 
-[12234]({{site.github}}/flutter/engine/pull/12234) [glfw/windows] Stops keeping track of input models
+[12234]({{site.repo.engine}}/pull/12234) [glfw/windows] Stops keeping track of input models
 
-[12267]({{site.github}}/flutter/engine/pull/12267) [macos] Stops keeping track of text input models
+[12267]({{site.repo.engine}}/pull/12267) [macos] Stops keeping track of text input models
 
-[12276]({{site.github}}/flutter/engine/pull/12276) Add system font change listener for windows
+[12276]({{site.repo.engine}}/pull/12276) Add system font change listener for windows
 
-[12423]({{site.github}}/flutter/engine/pull/12423) add windows embedding test
+[12423]({{site.repo.engine}}/pull/12423) add windows embedding test
 
-[12809]({{site.github}}/flutter/engine/pull/12809) Use the x64 host toolchain for x86 target gen_snapshot only on Linux
+[12809]({{site.repo.engine}}/pull/12809) Use the x64 host toolchain for x86 target gen_snapshot only on Linux
 
-[12814]({{site.github}}/flutter/engine/pull/12814) Enable all engine test on windows
+[12814]({{site.repo.engine}}/pull/12814) Enable all engine test on windows
 
-[13300]({{site.github}}/flutter/engine/pull/13300) Switch the MacOS Desktop embedder to using a thread configuration where the platform and render task runners are the same.
+[13300]({{site.repo.engine}}/pull/13300) Switch the MacOS Desktop embedder to using a thread configuration where the platform and render task runners are the same.
 
-[13702]({{site.github}}/flutter/engine/pull/13702) Fix editing selection and deletion on macOS
+[13702]({{site.repo.engine}}/pull/13702) Fix editing selection and deletion on macOS
 
 
 ## Framework
 
 We've fixed many bugs in this release to improve the quality and stability of our framework. 
 
-[38643]({{site.github}}/flutter/flutter/pull/38643) PlatformViewLink handles focus
+[38643]({{site.repo.flutter}}/pull/38643) PlatformViewLink handles focus
 
-[38699]({{site.github}}/flutter/flutter/pull/38699) fix widgetspan does not work with ellipsis in text widget
+[38699]({{site.repo.flutter}}/pull/38699) fix widgetspan does not work with ellipsis in text widget
 
-[38789]({{site.github}}/flutter/flutter/pull/38789) Fix DragTarget not being rebuilt when a rejected Draggable enters #38786
+[38789]({{site.repo.flutter}}/pull/38789) Fix DragTarget not being rebuilt when a rejected Draggable enters #38786
 
-[38930]({{site.github}}/flutter/flutter/pull/38930) Implement system fonts system channel listener
+[38930]({{site.repo.flutter}}/pull/38930) Implement system fonts system channel listener
 
-[38936]({{site.github}}/flutter/flutter/pull/38936) Fix KeySet (and LogicalKeySet) hashCode calculation
+[38936]({{site.repo.flutter}}/pull/38936) Fix KeySet (and LogicalKeySet) hashCode calculation
 
-[39059]({{site.github}}/flutter/flutter/pull/39059) Explain const values in MediaQuery test file
+[39059]({{site.repo.flutter}}/pull/39059) Explain const values in MediaQuery test file
 
-[39085]({{site.github}}/flutter/flutter/pull/39085) Make inspector details subtree depth configurable.
+[39085]({{site.repo.flutter}}/pull/39085) Make inspector details subtree depth configurable.
 
-[39089]({{site.github}}/flutter/flutter/pull/39089) Correct InheritedTheme.captureAll() for multiple theme ancestors of the same type
+[39089]({{site.repo.flutter}}/pull/39089) Correct InheritedTheme.captureAll() for multiple theme ancestors of the same type
 
-[39195]({{site.github}}/flutter/flutter/pull/39195) respect reversed scroll views
+[39195]({{site.repo.flutter}}/pull/39195) respect reversed scroll views
 
-[39252]({{site.github}}/flutter/flutter/pull/39252) Adds relayout option to CustomMultiChildLayout.
+[39252]({{site.repo.flutter}}/pull/39252) Adds relayout option to CustomMultiChildLayout.
 
-[39282]({{site.github}}/flutter/flutter/pull/39282) Expose text metrics in TextPainter.
+[39282]({{site.repo.flutter}}/pull/39282) Expose text metrics in TextPainter.
 
-[39354]({{site.github}}/flutter/flutter/pull/39354) Add IterableFlagsProperty and use it on proxy box classes
+[39354]({{site.repo.flutter}}/pull/39354) Add IterableFlagsProperty and use it on proxy box classes
 
-[39428]({{site.github}}/flutter/flutter/pull/39428) Replace doc example text
+[39428]({{site.repo.flutter}}/pull/39428) Replace doc example text
 
-[39446]({{site.github}}/flutter/flutter/pull/39446) Add viewType to PlatformViewLink
+[39446]({{site.repo.flutter}}/pull/39446) Add viewType to PlatformViewLink
 
-[39844]({{site.github}}/flutter/flutter/pull/39844) Fix curve for popping heroes
+[39844]({{site.repo.flutter}}/pull/39844) Fix curve for popping heroes
 
-[40099]({{site.github}}/flutter/flutter/pull/40099) Fix double.infinity serialization
+[40099]({{site.repo.flutter}}/pull/40099) Fix double.infinity serialization
 
-[40105]({{site.github}}/flutter/flutter/pull/40105) Ensure frame is scheduled when root widget is attached
+[40105]({{site.repo.flutter}}/pull/40105) Ensure frame is scheduled when root widget is attached
 
-[40119]({{site.github}}/flutter/flutter/pull/40119) fix skips to include all channels
+[40119]({{site.repo.flutter}}/pull/40119) fix skips to include all channels
 
-[40280]({{site.github}}/flutter/flutter/pull/40280) PlatformView: recreate surface if the controller changes
+[40280]({{site.repo.flutter}}/pull/40280) PlatformView: recreate surface if the controller changes
 
-[40306]({{site.github}}/flutter/flutter/pull/40306) Restore offstage and ticker mode after hero pop and the from hero is null
+[40306]({{site.repo.flutter}}/pull/40306) Restore offstage and ticker mode after hero pop and the from hero is null
 
-[40609]({{site.github}}/flutter/flutter/pull/40609) Specify ifTrue and ifFalse for strut FlagProperty
+[40609]({{site.repo.flutter}}/pull/40609) Specify ifTrue and ifFalse for strut FlagProperty
 
-[40635]({{site.github}}/flutter/flutter/pull/40635) Return WidgetSpans from getSpanForPosition
+[40635]({{site.repo.flutter}}/pull/40635) Return WidgetSpans from getSpanForPosition
 
-[40638]({{site.github}}/flutter/flutter/pull/40638) Allow sending platform messages from plugins to the framework and implement EventChannel
+[40638]({{site.repo.flutter}}/pull/40638) Allow sending platform messages from plugins to the framework and implement EventChannel
 
-[40709]({{site.github}}/flutter/flutter/pull/40709) Fixed Selectable text align is broken
+[40709]({{site.repo.flutter}}/pull/40709) Fixed Selectable text align is broken
 
-[40718]({{site.github}}/flutter/flutter/pull/40718) Handle CR+LF end of line sequences in the license parser
+[40718]({{site.repo.flutter}}/pull/40718) Handle CR+LF end of line sequences in the license parser
 
-[40775]({{site.github}}/flutter/flutter/pull/40775) Use EdgeInsetsGeometry instead of EdgeInsets
+[40775]({{site.repo.flutter}}/pull/40775) Use EdgeInsetsGeometry instead of EdgeInsets
 
-[40917]({{site.github}}/flutter/flutter/pull/40917) AnimatedBuilder API Doc improvements
+[40917]({{site.repo.flutter}}/pull/40917) AnimatedBuilder API Doc improvements
 
-[41145]({{site.github}}/flutter/flutter/pull/41145) Explicitly set CocoaPods version
+[41145]({{site.repo.flutter}}/pull/41145) Explicitly set CocoaPods version
 
-[41245]({{site.github}}/flutter/flutter/pull/41245) Change the way ActionDispatcher is found.
+[41245]({{site.repo.flutter}}/pull/41245) Change the way ActionDispatcher is found.
 
-[41329]({{site.github}}/flutter/flutter/pull/41329) Refactor: Base tap gesture recognizer
+[41329]({{site.repo.flutter}}/pull/41329) Refactor: Base tap gesture recognizer
 
-[41417]({{site.github}}/flutter/flutter/pull/41417) Address previous comments, fix Intent.doNothing.
+[41417]({{site.repo.flutter}}/pull/41417) Address previous comments, fix Intent.doNothing.
 
-[41763]({{site.github}}/flutter/flutter/pull/41763) No longer rebuild Routes when MediaQuery updates
+[41763]({{site.repo.flutter}}/pull/41763) No longer rebuild Routes when MediaQuery updates
 
-[41791]({{site.github}}/flutter/flutter/pull/41791) Refactor: Make MouseTracker test concise with some utility functions
+[41791]({{site.repo.flutter}}/pull/41791) Refactor: Make MouseTracker test concise with some utility functions
 
-[41803]({{site.github}}/flutter/flutter/pull/41803) Fixed media query issues and added test to prevent it from coming back
+[41803]({{site.repo.flutter}}/pull/41803) Fixed media query issues and added test to prevent it from coming back
 
-[41879]({{site.github}}/flutter/flutter/pull/41879) Make MouseTracker.sendMouseNotifications private
+[41879]({{site.repo.flutter}}/pull/41879) Make MouseTracker.sendMouseNotifications private
 
-[42076]({{site.github}}/flutter/flutter/pull/42076) create gesture recognizers on attach and dispose on detach to avoid leaks
+[42076]({{site.repo.flutter}}/pull/42076) create gesture recognizers on attach and dispose on detach to avoid leaks
 
-[42253]({{site.github}}/flutter/flutter/pull/42253) Change modal barrier to dismissing on tap up
+[42253]({{site.repo.flutter}}/pull/42253) Change modal barrier to dismissing on tap up
 
-[42484]({{site.github}}/flutter/flutter/pull/42484) Gradient transform
+[42484]({{site.repo.flutter}}/pull/42484) Gradient transform
 
-[42526]({{site.github}}/flutter/flutter/pull/42526) Improve routers performance
+[42526]({{site.repo.flutter}}/pull/42526) Improve routers performance
 
-[42558]({{site.github}}/flutter/flutter/pull/42558) Use placeholder dimensions that reflect the final text layout
+[42558]({{site.repo.flutter}}/pull/42558) Use placeholder dimensions that reflect the final text layout
 
-[42688]({{site.github}}/flutter/flutter/pull/42688) Source Code Comment Typo Fixes
+[42688]({{site.repo.flutter}}/pull/42688) Source Code Comment Typo Fixes
 
-[42777]({{site.github}}/flutter/flutter/pull/42777) Fix memory leak in TransitionRoute
+[42777]({{site.repo.flutter}}/pull/42777) Fix memory leak in TransitionRoute
 
-[42879]({{site.github}}/flutter/flutter/pull/42879) Re-implement hardware keyboard text selection.
+[42879]({{site.repo.flutter}}/pull/42879) Re-implement hardware keyboard text selection.
 
-[42953]({{site.github}}/flutter/flutter/pull/42953) Soften layer breakage
+[42953]({{site.repo.flutter}}/pull/42953) Soften layer breakage
 
-[43006]({{site.github}}/flutter/flutter/pull/43006) Set default borderRadius to zero in ClipRRect (as documented)
+[43006]({{site.repo.flutter}}/pull/43006) Set default borderRadius to zero in ClipRRect (as documented)
 
-[43246]({{site.github}}/flutter/flutter/pull/43246) Tap.dart: Fixes the spacing to the right side of reason
+[43246]({{site.repo.flutter}}/pull/43246) Tap.dart: Fixes the spacing to the right side of reason
 
-[43296]({{site.github}}/flutter/flutter/pull/43296) Skip failing test to green build
+[43296]({{site.repo.flutter}}/pull/43296) Skip failing test to green build
 
-[43467]({{site.github}}/flutter/flutter/pull/43467) Fixed bug where we could accidently call a callback twice.
+[43467]({{site.repo.flutter}}/pull/43467) Fixed bug where we could accidently call a callback twice.
 
-[43677]({{site.github}}/flutter/flutter/pull/43677) add libzip cache artifact
+[43677]({{site.repo.flutter}}/pull/43677) add libzip cache artifact
 
-[43684]({{site.github}}/flutter/flutter/pull/43684) [flutter_runner] Use sky_engine from the topaz tree
+[43684]({{site.repo.flutter}}/pull/43684) [flutter_runner] Use sky_engine from the topaz tree
 
-[43685]({{site.github}}/flutter/flutter/pull/43685) Remove Poller class from flutter_tools
+[43685]({{site.repo.flutter}}/pull/43685) Remove Poller class from flutter_tools
 
-[43739]({{site.github}}/flutter/flutter/pull/43739) enable avoid_web_libraries_in_flutter
+[43739]({{site.repo.flutter}}/pull/43739) enable avoid_web_libraries_in_flutter
 
-[43865]({{site.github}}/flutter/flutter/pull/43865) Reorder show and setEditingState calls to the IMM
+[43865]({{site.repo.flutter}}/pull/43865) Reorder show and setEditingState calls to the IMM
 
-[44150]({{site.github}}/flutter/flutter/pull/44150) Manually roll engine to unred the tree
+[44150]({{site.repo.flutter}}/pull/44150) Manually roll engine to unred the tree
 
-[44217]({{site.github}}/flutter/flutter/pull/44217) Moving pointer event sanitizing to engine.
+[44217]({{site.repo.flutter}}/pull/44217) Moving pointer event sanitizing to engine.
 
-[44233]({{site.github}}/flutter/flutter/pull/44233) Remove yield from inherited model
+[44233]({{site.repo.flutter}}/pull/44233) Remove yield from inherited model
 
-[44408]({{site.github}}/flutter/flutter/pull/44408) Remove no longer needed clean up code
+[44408]({{site.repo.flutter}}/pull/44408) Remove no longer needed clean up code
 
-[44422]({{site.github}}/flutter/flutter/pull/44422) Remove TextRange, export it from dart:ui
+[44422]({{site.repo.flutter}}/pull/44422) Remove TextRange, export it from dart:ui
 
-[44490]({{site.github}}/flutter/flutter/pull/44490) Fix "node._relayoutBoundary == _relayoutBoundary" crash
+[44490]({{site.repo.flutter}}/pull/44490) Fix "node._relayoutBoundary == _relayoutBoundary" crash
 
-[44611]({{site.github}}/flutter/flutter/pull/44611) Convert to TextPosition for getWordBoundary
+[44611]({{site.repo.flutter}}/pull/44611) Convert to TextPosition for getWordBoundary
 
-[44617]({{site.github}}/flutter/flutter/pull/44617) Make disposing a ScrollPosition with pixels=null legal
+[44617]({{site.repo.flutter}}/pull/44617) Make disposing a ScrollPosition with pixels=null legal
 
-[44622]({{site.github}}/flutter/flutter/pull/44622) Track and use fallback TextAffinity for null affinity platform TextSelections.
+[44622]({{site.repo.flutter}}/pull/44622) Track and use fallback TextAffinity for null affinity platform TextSelections.
 
-[44967]({{site.github}}/flutter/flutter/pull/44967) Try a mildly prettier FlutterError and make it less drastic in release mode
+[44967]({{site.repo.flutter}}/pull/44967) Try a mildly prettier FlutterError and make it less drastic in release mode
 
-[45083]({{site.github}}/flutter/flutter/pull/45083) Fix draggable scrollable sheet scroll notification
+[45083]({{site.repo.flutter}}/pull/45083) Fix draggable scrollable sheet scroll notification
 
-[45240]({{site.github}}/flutter/flutter/pull/45240) implicit-casts:false in flutter_web_plugins
+[45240]({{site.repo.flutter}}/pull/45240) implicit-casts:false in flutter_web_plugins
 
-[45249]({{site.github}}/flutter/flutter/pull/45249) implicit-casts:false in flutter_goldens and flutter_goldens_client
+[45249]({{site.repo.flutter}}/pull/45249) implicit-casts:false in flutter_goldens and flutter_goldens_client
 
 
 ## Engine
 
 In this update, the core engine continues to see many improvements, including a fix that solves the long-requested scrolling performance issue on iPhoneX/Xs.  
 
-[9386]({{site.github}}/flutter/engine/pull/9386) [glfw] Send the glfw key data to the framework.
+[9386]({{site.repo.engine}}/pull/9386) [glfw] Send the glfw key data to the framework.
 
-[9498]({{site.github}}/flutter/engine/pull/9498) Notify framework to clear input connection when app is backgrounded (#35054).
+[9498]({{site.repo.engine}}/pull/9498) Notify framework to clear input connection when app is backgrounded (#35054).
 
-[9806]({{site.github}}/flutter/engine/pull/9806) Reuse texture cache in ios_external_texture_gl.
+[9806]({{site.repo.engine}}/pull/9806) Reuse texture cache in ios_external_texture_gl.
 
-[9864]({{site.github}}/flutter/engine/pull/9864) Add capability to add AppDelegate as UNUserNotificationCenterDelegate
+[9864]({{site.repo.engine}}/pull/9864) Add capability to add AppDelegate as UNUserNotificationCenterDelegate
 
-[9888]({{site.github}}/flutter/engine/pull/9888) Provide dart vm initalize isolate callback so that children isolates belong to parent's isolate group.
+[9888]({{site.repo.engine}}/pull/9888) Provide dart vm initalize isolate callback so that children isolates belong to parent's isolate group.
 
-[10154]({{site.github}}/flutter/engine/pull/10154) Started taking advantage of Skia's new copyTableData to avoid superfluous copies.
+[10154]({{site.repo.engine}}/pull/10154) Started taking advantage of Skia's new copyTableData to avoid superfluous copies.
 
-[10182]({{site.github}}/flutter/engine/pull/10182) Made flutter startup faster by allowing initialization to be parallelized
+[10182]({{site.repo.engine}}/pull/10182) Made flutter startup faster by allowing initialization to be parallelized
 
-[10326]({{site.github}}/flutter/engine/pull/10326) copypixelbuffer causes crash
+[10326]({{site.repo.engine}}/pull/10326) copypixelbuffer causes crash
 
-[10670]({{site.github}}/flutter/engine/pull/10670) Expose LineMetrics in dart:ui
+[10670]({{site.repo.engine}}/pull/10670) Expose LineMetrics in dart:ui
 
-[10945]({{site.github}}/flutter/engine/pull/10945) De-dup FILE output for each license
+[10945]({{site.repo.engine}}/pull/10945) De-dup FILE output for each license
 
-[11041]({{site.github}}/flutter/engine/pull/11041) Add a BroadcastStream to FrameTiming
+[11041]({{site.repo.engine}}/pull/11041) Add a BroadcastStream to FrameTiming
 
-[11049]({{site.github}}/flutter/engine/pull/11049) Release _ongoingTouches when FlutterViewController dealloc
+[11049]({{site.repo.engine}}/pull/11049) Release _ongoingTouches when FlutterViewController dealloc
 
-[11062]({{site.github}}/flutter/engine/pull/11062) Provide a placeholder queue ID for the custom embedder task runner.
+[11062]({{site.repo.engine}}/pull/11062) Provide a placeholder queue ID for the custom embedder task runner.
 
-[11063]({{site.github}}/flutter/engine/pull/11063) Update ExternalViewEmbedder class comment.
+[11063]({{site.repo.engine}}/pull/11063) Update ExternalViewEmbedder class comment.
 
-[11070]({{site.github}}/flutter/engine/pull/11070) Platform View implemenation for Metal
+[11070]({{site.repo.engine}}/pull/11070) Platform View implemenation for Metal
 
-[11210]({{site.github}}/flutter/engine/pull/11210) Add Chrome to Dockerfile
+[11210]({{site.repo.engine}}/pull/11210) Add Chrome to Dockerfile
 
-[11222]({{site.github}}/flutter/engine/pull/11222) Dont present session twice
+[11222]({{site.repo.engine}}/pull/11222) Dont present session twice
 
-[11224]({{site.github}}/flutter/engine/pull/11224) Update metal layer drawable size on relayout.
+[11224]({{site.repo.engine}}/pull/11224) Update metal layer drawable size on relayout.
 
-[11226]({{site.github}}/flutter/engine/pull/11226) Make firebase testlab always pass
+[11226]({{site.repo.engine}}/pull/11226) Make firebase testlab always pass
 
-[11228]({{site.github}}/flutter/engine/pull/11228) Re-enable firebase test and don't use google login
+[11228]({{site.repo.engine}}/pull/11228) Re-enable firebase test and don't use google login
 
-[11230]({{site.github}}/flutter/engine/pull/11230) Update tflite_native and language_model revisions to match the Dart SDK
+[11230]({{site.repo.engine}}/pull/11230) Update tflite_native and language_model revisions to match the Dart SDK
 
-[11256]({{site.github}}/flutter/engine/pull/11256) Upgrade compiler to Clang 10.
+[11256]({{site.repo.engine}}/pull/11256) Upgrade compiler to Clang 10.
 
-[11265]({{site.github}}/flutter/engine/pull/11265) make it possible to disable debug symbols stripping
+[11265]({{site.repo.engine}}/pull/11265) make it possible to disable debug symbols stripping
 
-[11270]({{site.github}}/flutter/engine/pull/11270) Reset NSNetService delegate to nil，when stop service.
+[11270]({{site.repo.engine}}/pull/11270) Reset NSNetService delegate to nil，when stop service.
 
-[11283]({{site.github}}/flutter/engine/pull/11283) Fix objects equal to null not being detected as null
+[11283]({{site.repo.engine}}/pull/11283) Fix objects equal to null not being detected as null
 
-[11300]({{site.github}}/flutter/engine/pull/11300) Do not Prepare raster_cache if view_embedder is present
+[11300]({{site.repo.engine}}/pull/11300) Do not Prepare raster_cache if view_embedder is present
 
-[11305]({{site.github}}/flutter/engine/pull/11305) Fix a segfault in EmbedderTest.CanSpecifyCustomTaskRunner
+[11305]({{site.repo.engine}}/pull/11305) Fix a segfault in EmbedderTest.CanSpecifyCustomTaskRunner
 
-[11306]({{site.github}}/flutter/engine/pull/11306) Set FlutterMacOS podspec min version to 10.11
+[11306]({{site.repo.engine}}/pull/11306) Set FlutterMacOS podspec min version to 10.11
 
-[11309]({{site.github}}/flutter/engine/pull/11309) Fix change_install_name.py to be GN-friendly
+[11309]({{site.repo.engine}}/pull/11309) Fix change_install_name.py to be GN-friendly
 
-[11310]({{site.github}}/flutter/engine/pull/11310) When using a custom compositor, ensure the root canvas is flushed.
+[11310]({{site.repo.engine}}/pull/11310) When using a custom compositor, ensure the root canvas is flushed.
 
-[11315]({{site.github}}/flutter/engine/pull/11315) Do not add null task observers
+[11315]({{site.repo.engine}}/pull/11315) Do not add null task observers
 
-[11330]({{site.github}}/flutter/engine/pull/11330) Remove engine hash from the output artifact
+[11330]({{site.repo.engine}}/pull/11330) Remove engine hash from the output artifact
 
-[11355]({{site.github}}/flutter/engine/pull/11355) update sim script
+[11355]({{site.repo.engine}}/pull/11355) update sim script
 
-[11356]({{site.github}}/flutter/engine/pull/11356) Remove engine hash from pom filename
+[11356]({{site.repo.engine}}/pull/11356) Remove engine hash from pom filename
 
-[11361]({{site.github}}/flutter/engine/pull/11361) Include Java stack trace in method channel invocations
+[11361]({{site.repo.engine}}/pull/11361) Include Java stack trace in method channel invocations
 
-[11367]({{site.github}}/flutter/engine/pull/11367) Make message loop task entry containers thread safe
+[11367]({{site.repo.engine}}/pull/11367) Make message loop task entry containers thread safe
 
-[11368]({{site.github}}/flutter/engine/pull/11368) Switch to an incremental runloop for GLFW
+[11368]({{site.repo.engine}}/pull/11368) Switch to an incremental runloop for GLFW
 
-[11374]({{site.github}}/flutter/engine/pull/11374) Update scenarios readme
+[11374]({{site.repo.engine}}/pull/11374) Update scenarios readme
 
-[11382]({{site.github}}/flutter/engine/pull/11382) Trivial: remove empty line in the pom file
+[11382]({{site.repo.engine}}/pull/11382) Trivial: remove empty line in the pom file
 
-[11384]({{site.github}}/flutter/engine/pull/11384) Account for root surface transformation on the surfaces managed by the external view embedder.
+[11384]({{site.repo.engine}}/pull/11384) Account for root surface transformation on the surfaces managed by the external view embedder.
 
-[11388]({{site.github}}/flutter/engine/pull/11388) Allow overriding the GLFW pixel ratio
+[11388]({{site.repo.engine}}/pull/11388) Allow overriding the GLFW pixel ratio
 
-[11392]({{site.github}}/flutter/engine/pull/11392) Wire up software rendering in the test compositor.
+[11392]({{site.repo.engine}}/pull/11392) Wire up software rendering in the test compositor.
 
-[11394]({{site.github}}/flutter/engine/pull/11394) Avoid root surface acquisition during custom composition with software renderer.
+[11394]({{site.repo.engine}}/pull/11394) Avoid root surface acquisition during custom composition with software renderer.
 
-[11395]({{site.github}}/flutter/engine/pull/11395) Remove deprecated ThreadTest::GetThreadTaskRunner and use the newer CreateNewThread API.
+[11395]({{site.repo.engine}}/pull/11395) Remove deprecated ThreadTest::GetThreadTaskRunner and use the newer CreateNewThread API.
 
-[11416]({{site.github}}/flutter/engine/pull/11416) Shrink cirrus docker image: reduce RUN count, apt-get clean
+[11416]({{site.repo.engine}}/pull/11416) Shrink cirrus docker image: reduce RUN count, apt-get clean
 
-[11419]({{site.github}}/flutter/engine/pull/11419) Support non-60 refresh rate on PerformanceOverlay
+[11419]({{site.repo.engine}}/pull/11419) Support non-60 refresh rate on PerformanceOverlay
 
-[11420]({{site.github}}/flutter/engine/pull/11420) Fix touchpad scrolling on Chromebook
+[11420]({{site.repo.engine}}/pull/11420) Fix touchpad scrolling on Chromebook
 
-[11423]({{site.github}}/flutter/engine/pull/11423) Add tracing of the number of frames in flight in the pipeline.
+[11423]({{site.repo.engine}}/pull/11423) Add tracing of the number of frames in flight in the pipeline.
 
-[11427]({{site.github}}/flutter/engine/pull/11427) Skip empty platform view overlays.
+[11427]({{site.repo.engine}}/pull/11427) Skip empty platform view overlays.
 
-[11436]({{site.github}}/flutter/engine/pull/11436) update method for skia
+[11436]({{site.repo.engine}}/pull/11436) update method for skia
 
-[11456]({{site.github}}/flutter/engine/pull/11456) Update the ui.LineMetrics.height metric to be more useful to external users
+[11456]({{site.repo.engine}}/pull/11456) Update the ui.LineMetrics.height metric to be more useful to external users
 
-[11473]({{site.github}}/flutter/engine/pull/11473) Add missing newline at EOF
+[11473]({{site.repo.engine}}/pull/11473) Add missing newline at EOF
 
-[11489]({{site.github}}/flutter/engine/pull/11489) Ensure trailing newline before EOF in C++ sources
+[11489]({{site.repo.engine}}/pull/11489) Ensure trailing newline before EOF in C++ sources
 
-[11520]({{site.github}}/flutter/engine/pull/11520) Bitcode only for release
+[11520]({{site.repo.engine}}/pull/11520) Bitcode only for release
 
-[11524]({{site.github}}/flutter/engine/pull/11524) Reuse texture cache in ios_external_texture_gl
+[11524]({{site.repo.engine}}/pull/11524) Reuse texture cache in ios_external_texture_gl
 
-[11528]({{site.github}}/flutter/engine/pull/11528) Strip bitcode from gen_snapshot
+[11528]({{site.repo.engine}}/pull/11528) Strip bitcode from gen_snapshot
 
-[11537]({{site.github}}/flutter/engine/pull/11537) Add check to enable metal for import
+[11537]({{site.repo.engine}}/pull/11537) Add check to enable metal for import
 
-[11550]({{site.github}}/flutter/engine/pull/11550) Make Skia cache size channel respond with a value
+[11550]({{site.repo.engine}}/pull/11550) Make Skia cache size channel respond with a value
 
-[11554]({{site.github}}/flutter/engine/pull/11554) make engine, ui, and sdk rewriter inputs of dill construction
+[11554]({{site.repo.engine}}/pull/11554) make engine, ui, and sdk rewriter inputs of dill construction
 
-[11576]({{site.github}}/flutter/engine/pull/11576) Minor tweaks to the Doxygen theme.
+[11576]({{site.repo.engine}}/pull/11576) Minor tweaks to the Doxygen theme.
 
-[11622]({{site.github}}/flutter/engine/pull/11622) Include from font_asset_provider
+[11622]({{site.repo.engine}}/pull/11622) Include from font_asset_provider
 
-[11635]({{site.github}}/flutter/engine/pull/11635) [flutter_runner] Port Expose ViewBound Wireframe Functionality
+[11635]({{site.repo.engine}}/pull/11635) [flutter_runner] Port Expose ViewBound Wireframe Functionality
 
-[11636]({{site.github}}/flutter/engine/pull/11636) [fidl][flutter_runner] Port Migrate to new fit::optional compatible APIs
+[11636]({{site.repo.engine}}/pull/11636) [fidl][flutter_runner] Port Migrate to new fit::optional compatible APIs
 
-[11638]({{site.github}}/flutter/engine/pull/11638) Update CanvasSpy::onDrawEdgeAAQuad for Skia API change
+[11638]({{site.repo.engine}}/pull/11638) Update CanvasSpy::onDrawEdgeAAQuad for Skia API change
 
-[11649]({{site.github}}/flutter/engine/pull/11649) [flutter] Port: Run handle wait completers on the microtask queue
+[11649]({{site.repo.engine}}/pull/11649) [flutter] Port: Run handle wait completers on the microtask queue
 
-[11654]({{site.github}}/flutter/engine/pull/11654) Append newlines to EOF of all translation units.
+[11654]({{site.repo.engine}}/pull/11654) Append newlines to EOF of all translation units.
 
-[11655]({{site.github}}/flutter/engine/pull/11655) Don't crash while loading improperly formatted fonts on Safari
+[11655]({{site.repo.engine}}/pull/11655) Don't crash while loading improperly formatted fonts on Safari
 
-[11669]({{site.github}}/flutter/engine/pull/11669) Add style guide and formatting information
+[11669]({{site.repo.engine}}/pull/11669) Add style guide and formatting information
 
-[11717]({{site.github}}/flutter/engine/pull/11717) Return a JSON value for the Skia channel
+[11717]({{site.repo.engine}}/pull/11717) Return a JSON value for the Skia channel
 
-[11722]({{site.github}}/flutter/engine/pull/11722) Quote the font family name whenever setting the font-family property.
+[11722]({{site.repo.engine}}/pull/11722) Quote the font family name whenever setting the font-family property.
 
-[11736]({{site.github}}/flutter/engine/pull/11736) Add wasm to sky_engine
+[11736]({{site.repo.engine}}/pull/11736) Add wasm to sky_engine
 
-[11776]({{site.github}}/flutter/engine/pull/11776) [flutter_runner] Port over all the changes to the dart_runner cmx files
+[11776]({{site.repo.engine}}/pull/11776) [flutter_runner] Port over all the changes to the dart_runner cmx files
 
-[11783]({{site.github}}/flutter/engine/pull/11783) completely strip bitcode
+[11783]({{site.repo.engine}}/pull/11783) completely strip bitcode
 
-[11795]({{site.github}}/flutter/engine/pull/11795) Add a good reference source for font metrics.
+[11795]({{site.repo.engine}}/pull/11795) Add a good reference source for font metrics.
 
-[11804]({{site.github}}/flutter/engine/pull/11804) Incorporate View.setSystemGestureExclusionRects code review feedback from #11441
+[11804]({{site.repo.engine}}/pull/11804) Incorporate View.setSystemGestureExclusionRects code review feedback from #11441
 
-[11808]({{site.github}}/flutter/engine/pull/11808) Annotate nullability on FlutterEngine to make swift writing more ergonomic
+[11808]({{site.repo.engine}}/pull/11808) Annotate nullability on FlutterEngine to make swift writing more ergonomic
 
-[11835]({{site.github}}/flutter/engine/pull/11835) [CFE/VM] Fix merge/typo for bump to kernel version 29
+[11835]({{site.repo.engine}}/pull/11835) [CFE/VM] Fix merge/typo for bump to kernel version 29
 
-[11839]({{site.github}}/flutter/engine/pull/11839) Remove ENABLE_BITCODE from Scenarios test app
+[11839]({{site.repo.engine}}/pull/11839) Remove ENABLE_BITCODE from Scenarios test app
 
-[11842]({{site.github}}/flutter/engine/pull/11842) Fix RTL justification with newline by passing in full justify tracking var
+[11842]({{site.repo.engine}}/pull/11842) Fix RTL justification with newline by passing in full justify tracking var
 
-[11847]({{site.github}}/flutter/engine/pull/11847) Add a sample unit test target to flutter runner
+[11847]({{site.repo.engine}}/pull/11847) Add a sample unit test target to flutter runner
 
-[11849]({{site.github}}/flutter/engine/pull/11849) Support building standalone far packages with autogen manifests
+[11849]({{site.repo.engine}}/pull/11849) Support building standalone far packages with autogen manifests
 
-[11875]({{site.github}}/flutter/engine/pull/11875) [flutter_runner] Add common libs to the test far
+[11875]({{site.repo.engine}}/pull/11875) [flutter_runner] Add common libs to the test far
 
-[11877]({{site.github}}/flutter/engine/pull/11877) Finish plumbing message responses on method channels
+[11877]({{site.repo.engine}}/pull/11877) Finish plumbing message responses on method channels
 
-[11880]({{site.github}}/flutter/engine/pull/11880) Handle new navigation platform messages
+[11880]({{site.repo.engine}}/pull/11880) Handle new navigation platform messages
 
-[11893]({{site.github}}/flutter/engine/pull/11893) Add @Keep annotation
+[11893]({{site.repo.engine}}/pull/11893) Add @Keep annotation
 
-[11899]({{site.github}}/flutter/engine/pull/11899) Improve input method and Unicode character display(#30661)
+[11899]({{site.repo.engine}}/pull/11899) Improve input method and Unicode character display(#30661)
 
-[12011]({{site.github}}/flutter/engine/pull/12011) Cherry-picks for 1.9.1
+[12011]({{site.repo.engine}}/pull/12011) Cherry-picks for 1.9.1
 
-[12016]({{site.github}}/flutter/engine/pull/12016) [flutter_runner] Kernel platform files can now be built in topaz
+[12016]({{site.repo.engine}}/pull/12016) [flutter_runner] Kernel platform files can now be built in topaz
 
-[12023]({{site.github}}/flutter/engine/pull/12023) Fix multi span text ruler cache lookup failure.
+[12023]({{site.repo.engine}}/pull/12023) Fix multi span text ruler cache lookup failure.
 
-[12026]({{site.github}}/flutter/engine/pull/12026) [flutter_runner] Plumb Flutter component arguments to the Dart entrypoint
+[12026]({{site.repo.engine}}/pull/12026) [flutter_runner] Plumb Flutter component arguments to the Dart entrypoint
 
-[12034]({{site.github}}/flutter/engine/pull/12034) [flutter_runner] Refactor our build rules to make them more inline with topaz
+[12034]({{site.repo.engine}}/pull/12034) [flutter_runner] Refactor our build rules to make them more inline with topaz
 
-[12048]({{site.github}}/flutter/engine/pull/12048) [flutter_runner] Generate symbols for the Dart VM profiler
+[12048]({{site.repo.engine}}/pull/12048) [flutter_runner] Generate symbols for the Dart VM profiler
 
-[12054]({{site.github}}/flutter/engine/pull/12054) [flutter_runner] Port the accessibility bridge from Topaz
+[12054]({{site.repo.engine}}/pull/12054) [flutter_runner] Port the accessibility bridge from Topaz
 
-[12076]({{site.github}}/flutter/engine/pull/12076) Add a method to flutter_window_controller to destroy the current window.
+[12076]({{site.repo.engine}}/pull/12076) Add a method to flutter_window_controller to destroy the current window.
 
-[12080]({{site.github}}/flutter/engine/pull/12080) Don't quote generic font families
+[12080]({{site.repo.engine}}/pull/12080) Don't quote generic font families
 
-[12081]({{site.github}}/flutter/engine/pull/12081) Add GradientRadial paintStyle implementation
+[12081]({{site.repo.engine}}/pull/12081) Add GradientRadial paintStyle implementation
 
-[12087]({{site.github}}/flutter/engine/pull/12087) Don't launch the observatory by default on each embedder unit-test invocation.
+[12087]({{site.repo.engine}}/pull/12087) Don't launch the observatory by default on each embedder unit-test invocation.
 
-[12204]({{site.github}}/flutter/engine/pull/12204) Don't disable toString in release mode for dart:ui classes
+[12204]({{site.repo.engine}}/pull/12204) Don't disable toString in release mode for dart:ui classes
 
-[12205]({{site.github}}/flutter/engine/pull/12205) Don't load Roboto by default
+[12205]({{site.repo.engine}}/pull/12205) Don't load Roboto by default
 
-[12218]({{site.github}}/flutter/engine/pull/12218) Namespace patched SDK names to not conflict with Topaz
+[12218]({{site.repo.engine}}/pull/12218) Namespace patched SDK names to not conflict with Topaz
 
-[12222]({{site.github}}/flutter/engine/pull/12222) Do not generate kernel platform files on topaz tree
+[12222]({{site.repo.engine}}/pull/12222) Do not generate kernel platform files on topaz tree
 
-[12226]({{site.github}}/flutter/engine/pull/12226) [web_ui] add missing dispose handler for MethodCalls to flutter/platform_view
+[12226]({{site.repo.engine}}/pull/12226) [web_ui] add missing dispose handler for MethodCalls to flutter/platform_view
 
-[12227]({{site.github}}/flutter/engine/pull/12227) [web_ui] PersistedPlatformView attribute update handling to enable resizing
+[12227]({{site.repo.engine}}/pull/12227) [web_ui] PersistedPlatformView attribute update handling to enable resizing
 
-[12228]({{site.github}}/flutter/engine/pull/12228) pin and auto-install chrome version
+[12228]({{site.repo.engine}}/pull/12228) pin and auto-install chrome version
 
-[12229]({{site.github}}/flutter/engine/pull/12229) Improve check to render (or not) a DRRect when inner falls outside of outer on RecordingCanvas
+[12229]({{site.repo.engine}}/pull/12229) Improve check to render (or not) a DRRect when inner falls outside of outer on RecordingCanvas
 
-[12249]({{site.github}}/flutter/engine/pull/12249) Editable text fix
+[12249]({{site.repo.engine}}/pull/12249) Editable text fix
 
-[12253]({{site.github}}/flutter/engine/pull/12253) Implement Base32Decode
+[12253]({{site.repo.engine}}/pull/12253) Implement Base32Decode
 
-[12256]({{site.github}}/flutter/engine/pull/12256) Do not assume Platform.script is a Dart source file during training.
+[12256]({{site.repo.engine}}/pull/12256) Do not assume Platform.script is a Dart source file during training.
 
-[12257]({{site.github}}/flutter/engine/pull/12257) Re-enable ThreadChecker and fix associated failures
+[12257]({{site.repo.engine}}/pull/12257) Re-enable ThreadChecker and fix associated failures
 
-[12258]({{site.github}}/flutter/engine/pull/12258) Refactor and polish the 'felt' tool
+[12258]({{site.repo.engine}}/pull/12258) Refactor and polish the 'felt' tool
 
-[12269]({{site.github}}/flutter/engine/pull/12269) a11y: expose max character count for text fields
+[12269]({{site.repo.engine}}/pull/12269) a11y: expose max character count for text fields
 
-[12273]({{site.github}}/flutter/engine/pull/12273) Clean up after AppLifecycleTests
+[12273]({{site.repo.engine}}/pull/12273) Clean up after AppLifecycleTests
 
-[12274]({{site.github}}/flutter/engine/pull/12274) Store screenshot test output as Cirrus artifacts; do fuzzy comparison of non-matching screenshot pixels
+[12274]({{site.repo.engine}}/pull/12274) Store screenshot test output as Cirrus artifacts; do fuzzy comparison of non-matching screenshot pixels
 
-[12275]({{site.github}}/flutter/engine/pull/12275) Shuffle test order and repeat test runs once.
+[12275]({{site.repo.engine}}/pull/12275) Shuffle test order and repeat test runs once.
 
-[12281]({{site.github}}/flutter/engine/pull/12281) optionally skip builds
+[12281]({{site.repo.engine}}/pull/12281) optionally skip builds
 
-[12282]({{site.github}}/flutter/engine/pull/12282) [flutter_runner] Change the path to artifacts
+[12282]({{site.repo.engine}}/pull/12282) [flutter_runner] Change the path to artifacts
 
-[12287]({{site.github}}/flutter/engine/pull/12287) Adds PluginRegistry to the C++ client wrapper API
+[12287]({{site.repo.engine}}/pull/12287) Adds PluginRegistry to the C++ client wrapper API
 
-[12288]({{site.github}}/flutter/engine/pull/12288) Include firefox in check to quote font families
+[12288]({{site.repo.engine}}/pull/12288) Include firefox in check to quote font families
 
-[12289]({{site.github}}/flutter/engine/pull/12289) Fix flutter runner paths
+[12289]({{site.repo.engine}}/pull/12289) Fix flutter runner paths
 
-[12303]({{site.github}}/flutter/engine/pull/12303) Add a build command to felt
+[12303]({{site.repo.engine}}/pull/12303) Add a build command to felt
 
-[12306]({{site.github}}/flutter/engine/pull/12306) Fix the declaration of setSystemGestureExclusionRects to match the PlatformMessageHandler interface
+[12306]({{site.repo.engine}}/pull/12306) Fix the declaration of setSystemGestureExclusionRects to match the PlatformMessageHandler interface
 
-[12307]({{site.github}}/flutter/engine/pull/12307) Cleanup in web_ui
+[12307]({{site.repo.engine}}/pull/12307) Cleanup in web_ui
 
-[12308]({{site.github}}/flutter/engine/pull/12308) [flutter] Remove old A11y API's.
+[12308]({{site.repo.engine}}/pull/12308) [flutter] Remove old A11y API's.
 
-[12318]({{site.github}}/flutter/engine/pull/12318) Update canvaskit backend
+[12318]({{site.repo.engine}}/pull/12318) Update canvaskit backend
 
-[12319]({{site.github}}/flutter/engine/pull/12319) Add "type" to getDisplayRefreshRate protocol
+[12319]({{site.repo.engine}}/pull/12319) Add "type" to getDisplayRefreshRate protocol
 
-[12320]({{site.github}}/flutter/engine/pull/12320) Fix continuous event polling in the GLFW event loop
+[12320]({{site.repo.engine}}/pull/12320) Fix continuous event polling in the GLFW event loop
 
-[12323]({{site.github}}/flutter/engine/pull/12323) README for the felt tool
+[12323]({{site.repo.engine}}/pull/12323) README for the felt tool
 
-[12330]({{site.github}}/flutter/engine/pull/12330) Ensure DRRects without corners also draw.
+[12330]({{site.repo.engine}}/pull/12330) Ensure DRRects without corners also draw.
 
-[12336]({{site.github}}/flutter/engine/pull/12336) Check for index bounds in RTL handling for trailing whitespace runs.
+[12336]({{site.repo.engine}}/pull/12336) Check for index bounds in RTL handling for trailing whitespace runs.
 
-[12340]({{site.github}}/flutter/engine/pull/12340) [flutter_runner] Do not use pre-builts just yet
+[12340]({{site.repo.engine}}/pull/12340) [flutter_runner] Do not use pre-builts just yet
 
-[12342]({{site.github}}/flutter/engine/pull/12342) Update test to verify that secondary isolate gets shutdown before root isolate exits.
+[12342]({{site.repo.engine}}/pull/12342) Update test to verify that secondary isolate gets shutdown before root isolate exits.
 
-[12343]({{site.github}}/flutter/engine/pull/12343) [flutter_runner] Remove usages of shared snapshots from CC sources
+[12343]({{site.repo.engine}}/pull/12343) [flutter_runner] Remove usages of shared snapshots from CC sources
 
-[12345]({{site.github}}/flutter/engine/pull/12345) [flutter_runner] Port over the tuning advice for vulkan surface provider
+[12345]({{site.repo.engine}}/pull/12345) [flutter_runner] Port over the tuning advice for vulkan surface provider
 
-[12346]({{site.github}}/flutter/engine/pull/12346) [flutter_runner] Move from runner context to component context
+[12346]({{site.repo.engine}}/pull/12346) [flutter_runner] Move from runner context to component context
 
-[12347]({{site.github}}/flutter/engine/pull/12347) [flutter_runner][async] Migrate dart/flutter to new async-loop APIs
+[12347]({{site.repo.engine}}/pull/12347) [flutter_runner][async] Migrate dart/flutter to new async-loop APIs
 
-[12348]({{site.github}}/flutter/engine/pull/12348) [flutter_runner] Port the new compilation trace from topaz
+[12348]({{site.repo.engine}}/pull/12348) [flutter_runner] Port the new compilation trace from topaz
 
-[12349]({{site.github}}/flutter/engine/pull/12349) [flutter_runner] Explicitly set |trace_skia| to false
+[12349]({{site.repo.engine}}/pull/12349) [flutter_runner] Explicitly set |trace_skia| to false
 
-[12350]({{site.github}}/flutter/engine/pull/12350) [flutter_runner] Port vulkan surface changes
+[12350]({{site.repo.engine}}/pull/12350) [flutter_runner] Port vulkan surface changes
 
-[12355]({{site.github}}/flutter/engine/pull/12355) skip flaky test
+[12355]({{site.repo.engine}}/pull/12355) skip flaky test
 
-[12363]({{site.github}}/flutter/engine/pull/12363) Track "mouse leave" event
+[12363]({{site.repo.engine}}/pull/12363) Track "mouse leave" event
 
-[12375]({{site.github}}/flutter/engine/pull/12375) Sync dart_runner
+[12375]({{site.repo.engine}}/pull/12375) Sync dart_runner
 
-[12395]({{site.github}}/flutter/engine/pull/12395) Update --dart-vm-flags whitelist to include --write-service-info and --sample-buffer-duration
+[12395]({{site.repo.engine}}/pull/12395) Update --dart-vm-flags whitelist to include --write-service-info and --sample-buffer-duration
 
-[12403]({{site.github}}/flutter/engine/pull/12403) Don't send pointer events when the framework isn't ready yet
+[12403]({{site.repo.engine}}/pull/12403) Don't send pointer events when the framework isn't ready yet
 
-[12410]({{site.github}}/flutter/engine/pull/12410) Send TYPE_VIEW_FOCUSED for views with input focus.
+[12410]({{site.repo.engine}}/pull/12410) Send TYPE_VIEW_FOCUSED for views with input focus.
 
-[12412]({{site.github}}/flutter/engine/pull/12412) SkSL precompile
+[12412]({{site.repo.engine}}/pull/12412) SkSL precompile
 
-[12426]({{site.github}}/flutter/engine/pull/12426) Store fallback font names as a vector instead of a set.
+[12426]({{site.repo.engine}}/pull/12426) Store fallback font names as a vector instead of a set.
 
-[12431]({{site.github}}/flutter/engine/pull/12431) Interpret negative radii as 0 in recording_canvas.dart
+[12431]({{site.repo.engine}}/pull/12431) Interpret negative radii as 0 in recording_canvas.dart
 
-[12432]({{site.github}}/flutter/engine/pull/12432) Work around Samsung keyboard issue
+[12432]({{site.repo.engine}}/pull/12432) Work around Samsung keyboard issue
 
-[12434]({{site.github}}/flutter/engine/pull/12434) delete golden files; switch to flutter/goldens
+[12434]({{site.repo.engine}}/pull/12434) delete golden files; switch to flutter/goldens
 
-[12435]({{site.github}}/flutter/engine/pull/12435) add dart:html, dart:js, and dart:js_util to the copy of the Dart SDK used for analysis
+[12435]({{site.repo.engine}}/pull/12435) add dart:html, dart:js, and dart:js_util to the copy of the Dart SDK used for analysis
 
-[12443]({{site.github}}/flutter/engine/pull/12443) Force exit felt tool on sigint, sigterm
+[12443]({{site.repo.engine}}/pull/12443) Force exit felt tool on sigint, sigterm
 
-[12446]({{site.github}}/flutter/engine/pull/12446) Add support for JIT release mode
+[12446]({{site.repo.engine}}/pull/12446) Add support for JIT release mode
 
-[12447]({{site.github}}/flutter/engine/pull/12447) Reflect selection changes in Firefox for text editing
+[12447]({{site.repo.engine}}/pull/12447) Reflect selection changes in Firefox for text editing
 
-[12448]({{site.github}}/flutter/engine/pull/12448) Make kDoNotResizeDimension public so framework can use it directly
+[12448]({{site.repo.engine}}/pull/12448) Make kDoNotResizeDimension public so framework can use it directly
 
-[12450]({{site.github}}/flutter/engine/pull/12450) Adds support for 5 mouse buttons
+[12450]({{site.repo.engine}}/pull/12450) Adds support for 5 mouse buttons
 
-[12453]({{site.github}}/flutter/engine/pull/12453) Adding Link SemanticsFlag
+[12453]({{site.repo.engine}}/pull/12453) Adding Link SemanticsFlag
 
-[12454]({{site.github}}/flutter/engine/pull/12454) Add .mskp file to binary format
+[12454]({{site.repo.engine}}/pull/12454) Add .mskp file to binary format
 
-[12470]({{site.github}}/flutter/engine/pull/12470) [web_ui] Check if a pointer is already down for the specific device
+[12470]({{site.repo.engine}}/pull/12470) [web_ui] Check if a pointer is already down for the specific device
 
-[12479]({{site.github}}/flutter/engine/pull/12479) Refactoring text_editing.dart
+[12479]({{site.repo.engine}}/pull/12479) Refactoring text_editing.dart
 
-[12563]({{site.github}}/flutter/engine/pull/12563) Remove use of the blobs snapshot format from unittests
+[12563]({{site.repo.engine}}/pull/12563) Remove use of the blobs snapshot format from unittests
 
-[12565]({{site.github}}/flutter/engine/pull/12565) Remove references to topaz
+[12565]({{site.repo.engine}}/pull/12565) Remove references to topaz
 
-[12573]({{site.github}}/flutter/engine/pull/12573) [flutter_runner] Refactor thread_application pair to ActiveApplication
+[12573]({{site.repo.engine}}/pull/12573) [flutter_runner] Refactor thread_application pair to ActiveApplication
 
-[12618]({{site.github}}/flutter/engine/pull/12618) Add isFocusable to SemanticsFlag
+[12618]({{site.repo.engine}}/pull/12618) Add isFocusable to SemanticsFlag
 
-[12681]({{site.github}}/flutter/engine/pull/12681) Create a package-able incremental compiler
+[12681]({{site.repo.engine}}/pull/12681) Create a package-able incremental compiler
 
-[12695]({{site.github}}/flutter/engine/pull/12695) Add onUnregistered callback in 'Texture' and 'FlutterTexture'
+[12695]({{site.repo.engine}}/pull/12695) Add onUnregistered callback in 'Texture' and 'FlutterTexture'
 
-[12698]({{site.github}}/flutter/engine/pull/12698) [web_ui] Fixing invalid state bug for text editing
+[12698]({{site.repo.engine}}/pull/12698) [web_ui] Fixing invalid state bug for text editing
 
-[12699]({{site.github}}/flutter/engine/pull/12699) Adding 'pub get' to the 'compile_xxxx.sh' in the Scenario app
+[12699]({{site.repo.engine}}/pull/12699) Adding 'pub get' to the 'compile_xxxx.sh' in the Scenario app
 
-[12700]({{site.github}}/flutter/engine/pull/12700) Add missing flag for embedder.
+[12700]({{site.repo.engine}}/pull/12700) Add missing flag for embedder.
 
-[12701]({{site.github}}/flutter/engine/pull/12701) Cleanup: Made a macro to assert ARC is enabled.
+[12701]({{site.repo.engine}}/pull/12701) Cleanup: Made a macro to assert ARC is enabled.
 
-[12706]({{site.github}}/flutter/engine/pull/12706) Check for a null input method subtype
+[12706]({{site.repo.engine}}/pull/12706) Check for a null input method subtype
 
-[12708]({{site.github}}/flutter/engine/pull/12708) Cleanup: Turned on NS_ASSUME_NONNULL_BEGIN for FlutterViewController.
+[12708]({{site.repo.engine}}/pull/12708) Cleanup: Turned on NS_ASSUME_NONNULL_BEGIN for FlutterViewController.
 
-[12710]({{site.github}}/flutter/engine/pull/12710) Set transparent background in textarea elements
+[12710]({{site.repo.engine}}/pull/12710) Set transparent background in textarea elements
 
-[12725]({{site.github}}/flutter/engine/pull/12725) Expanded channel buffer resize to method channels.
+[12725]({{site.repo.engine}}/pull/12725) Expanded channel buffer resize to method channels.
 
-[12728]({{site.github}}/flutter/engine/pull/12728) Remove unused import in the scenario app
+[12728]({{site.repo.engine}}/pull/12728) Remove unused import in the scenario app
 
-[12730]({{site.github}}/flutter/engine/pull/12730) Stop setting the accessibility text if a node has SCOPES_ROUTE set.
+[12730]({{site.repo.engine}}/pull/12730) Stop setting the accessibility text if a node has SCOPES_ROUTE set.
 
-[12733]({{site.github}}/flutter/engine/pull/12733) [flutter_runner] Make rd and rx uniform
+[12733]({{site.repo.engine}}/pull/12733) [flutter_runner] Make rd and rx uniform
 
-[12746]({{site.github}}/flutter/engine/pull/12746) Send AccessibilityEvent.TYPE_VIEW_FOCUSED when input focus is set.
+[12746]({{site.repo.engine}}/pull/12746) Send AccessibilityEvent.TYPE_VIEW_FOCUSED when input focus is set.
 
-[12754]({{site.github}}/flutter/engine/pull/12754) Fix Metal builds by accounting for the updated SubmitFrame signature.
+[12754]({{site.repo.engine}}/pull/12754) Fix Metal builds by accounting for the updated SubmitFrame signature.
 
-[12775]({{site.github}}/flutter/engine/pull/12775) Added some thread asserts to the code and made ios_surface_ safe since
+[12775]({{site.repo.engine}}/pull/12775) Added some thread asserts to the code and made ios_surface_ safe since
 
-[12777]({{site.github}}/flutter/engine/pull/12777) Fix Metal builds.
+[12777]({{site.repo.engine}}/pull/12777) Fix Metal builds.
 
-[12780]({{site.github}}/flutter/engine/pull/12780) Restart all modern Samsung keyboard IMM
+[12780]({{site.repo.engine}}/pull/12780) Restart all modern Samsung keyboard IMM
 
-[12783]({{site.github}}/flutter/engine/pull/12783) Add a unit-test to verify that root surface transformation affects platform view coordinates.
+[12783]({{site.repo.engine}}/pull/12783) Add a unit-test to verify that root surface transformation affects platform view coordinates.
 
-[12785]({{site.github}}/flutter/engine/pull/12785) Fix bug in package script and add dev_compiler to list
+[12785]({{site.repo.engine}}/pull/12785) Fix bug in package script and add dev_compiler to list
 
-[12793]({{site.github}}/flutter/engine/pull/12793) Fixing selection issues in Firefox
+[12793]({{site.repo.engine}}/pull/12793) Fixing selection issues in Firefox
 
-[12797]({{site.github}}/flutter/engine/pull/12797) add option for bulk-updating screenshots; update screenshots (Work in progress
+[12797]({{site.repo.engine}}/pull/12797) add option for bulk-updating screenshots; update screenshots (Work in progress
 
-[12798]({{site.github}}/flutter/engine/pull/12798) [flutter_runner] Update the cmx files to include TZ support
+[12798]({{site.repo.engine}}/pull/12798) [flutter_runner] Update the cmx files to include TZ support
 
-[12799]({{site.github}}/flutter/engine/pull/12799) Disable EmbedderTest::CanLaunchAndShutdownMultipleTimes.
+[12799]({{site.repo.engine}}/pull/12799) Disable EmbedderTest::CanLaunchAndShutdownMultipleTimes.
 
-[12800]({{site.github}}/flutter/engine/pull/12800) Prettify all CMX files
+[12800]({{site.repo.engine}}/pull/12800) Prettify all CMX files
 
-[12801]({{site.github}}/flutter/engine/pull/12801) do not wrap font family name
+[12801]({{site.repo.engine}}/pull/12801) do not wrap font family name
 
-[12802]({{site.github}}/flutter/engine/pull/12802) Build gen_snapshot with a 64-bit host toolchain even if the target platform is 32-bit
+[12802]({{site.repo.engine}}/pull/12802) Build gen_snapshot with a 64-bit host toolchain even if the target platform is 32-bit
 
-[12808]({{site.github}}/flutter/engine/pull/12808) Added an embedder example
+[12808]({{site.repo.engine}}/pull/12808) Added an embedder example
 
-[12813]({{site.github}}/flutter/engine/pull/12813) Unblock SIGPROF on flutter_tester start
+[12813]({{site.repo.engine}}/pull/12813) Unblock SIGPROF on flutter_tester start
 
-[12816]({{site.github}}/flutter/engine/pull/12816) Enable sanitizer build variants.
+[12816]({{site.repo.engine}}/pull/12816) Enable sanitizer build variants.
 
-[12821]({{site.github}}/flutter/engine/pull/12821) Update buildroot to pull in ubsan updates.
+[12821]({{site.repo.engine}}/pull/12821) Update buildroot to pull in ubsan updates.
 
-[12931]({{site.github}}/flutter/engine/pull/12931) remove references to package:_chrome
+[12931]({{site.repo.engine}}/pull/12931) remove references to package:_chrome
 
-[12958]({{site.github}}/flutter/engine/pull/12958) Adding deviceId to KeyEventChannel enconding method
+[12958]({{site.repo.engine}}/pull/12958) Adding deviceId to KeyEventChannel enconding method
 
-[12960]({{site.github}}/flutter/engine/pull/12960) Fix typo on channel buffer debug output.
+[12960]({{site.repo.engine}}/pull/12960) Fix typo on channel buffer debug output.
 
-[12974]({{site.github}}/flutter/engine/pull/12974) Support empty strings and vectors in standard codec
+[12974]({{site.repo.engine}}/pull/12974) Support empty strings and vectors in standard codec
 
-[12980]({{site.github}}/flutter/engine/pull/12980) Made _printDebug only happen on debug builds of the engine for now.
+[12980]({{site.repo.engine}}/pull/12980) Made _printDebug only happen on debug builds of the engine for now.
 
-[12982]({{site.github}}/flutter/engine/pull/12982) Color matrix doc
+[12982]({{site.repo.engine}}/pull/12982) Color matrix doc
 
-[12986]({{site.github}}/flutter/engine/pull/12986) Prevent default when Tab is clicked
+[12986]({{site.repo.engine}}/pull/12986) Prevent default when Tab is clicked
 
-[12988]({{site.github}}/flutter/engine/pull/12988) Use the standard gen_snapshot target unless the platform requires host_targeting_host
+[12988]({{site.repo.engine}}/pull/12988) Use the standard gen_snapshot target unless the platform requires host_targeting_host
 
-[12989]({{site.github}}/flutter/engine/pull/12989) Unpublicize kDoNotResizeDimension
+[12989]({{site.repo.engine}}/pull/12989) Unpublicize kDoNotResizeDimension
 
-[12991]({{site.github}}/flutter/engine/pull/12991) Compile sanitizer suppressions list and file bugs as necessary.
+[12991]({{site.repo.engine}}/pull/12991) Compile sanitizer suppressions list and file bugs as necessary.
 
-[12999]({{site.github}}/flutter/engine/pull/12999) Started setting our debug background task id to invalid
+[12999]({{site.repo.engine}}/pull/12999) Started setting our debug background task id to invalid
 
-[13001]({{site.github}}/flutter/engine/pull/13001) Missing link flag
+[13001]({{site.repo.engine}}/pull/13001) Missing link flag
 
-[13004]({{site.github}}/flutter/engine/pull/13004) Allow embedders to disable causal async stacks in the Dart VM
+[13004]({{site.repo.engine}}/pull/13004) Allow embedders to disable causal async stacks in the Dart VM
 
-[13005]({{site.github}}/flutter/engine/pull/13005) Auto-formatter fixes for [BUILD.gn](http://build.gn/) files
+[13005]({{site.repo.engine}}/pull/13005) Auto-formatter fixes for [BUILD.gn](http://build.gn/) files
 
-[13008]({{site.github}}/flutter/engine/pull/13008) Integration with more of Skia's SkShaper/SkParagraph APIs
+[13008]({{site.repo.engine}}/pull/13008) Integration with more of Skia's SkShaper/SkParagraph APIs
 
-[13009]({{site.github}}/flutter/engine/pull/13009) Fixing Link Semantics Typo
+[13009]({{site.repo.engine}}/pull/13009) Fixing Link Semantics Typo
 
-[13015]({{site.github}}/flutter/engine/pull/13015) Fire PlatformViewController FlutterView callbacks
+[13015]({{site.repo.engine}}/pull/13015) Fire PlatformViewController FlutterView callbacks
 
-[13042]({{site.github}}/flutter/engine/pull/13042) Add "felt clean" command
+[13042]({{site.repo.engine}}/pull/13042) Add "felt clean" command
 
-[13043]({{site.github}}/flutter/engine/pull/13043) Add a task runner for the Win32 embedding
+[13043]({{site.repo.engine}}/pull/13043) Add a task runner for the Win32 embedding
 
-[13044]({{site.github}}/flutter/engine/pull/13044) Support keyboard types on mobile browsers
+[13044]({{site.repo.engine}}/pull/13044) Support keyboard types on mobile browsers
 
-[13047]({{site.github}}/flutter/engine/pull/13047) Allow embedders to specify arbitrary data to the isolate on launch.
+[13047]({{site.repo.engine}}/pull/13047) Allow embedders to specify arbitrary data to the isolate on launch.
 
-[13049]({{site.github}}/flutter/engine/pull/13049) Ignore thread leaks from Dart VM in tsan instrumented builds.
+[13049]({{site.repo.engine}}/pull/13049) Ignore thread leaks from Dart VM in tsan instrumented builds.
 
-[13053]({{site.github}}/flutter/engine/pull/13053) Set the Cirrus badge to only display status of the master branch.
+[13053]({{site.repo.engine}}/pull/13053) Set the Cirrus badge to only display status of the master branch.
 
-[13056]({{site.github}}/flutter/engine/pull/13056) Put Metal renderer selection behind runtime flag and plist opt-in.
+[13056]({{site.repo.engine}}/pull/13056) Put Metal renderer selection behind runtime flag and plist opt-in.
 
-[13071]({{site.github}}/flutter/engine/pull/13071) [dart_aot_runner] Add support for generating dart_aot snapshots
+[13071]({{site.repo.engine}}/pull/13071) [dart_aot_runner] Add support for generating dart_aot snapshots
 
-[13074]({{site.github}}/flutter/engine/pull/13074) [dart_aot_runner] Add rules to generate dart_aot binaries
+[13074]({{site.repo.engine}}/pull/13074) [dart_aot_runner] Add rules to generate dart_aot binaries
 
-[13082]({{site.github}}/flutter/engine/pull/13082) java imports/style
+[13082]({{site.repo.engine}}/pull/13082) java imports/style
 
-[13085]({{site.github}}/flutter/engine/pull/13085) Print more output when gen_package fails
+[13085]({{site.repo.engine}}/pull/13085) Print more output when gen_package fails
 
-[13086]({{site.github}}/flutter/engine/pull/13086) Gen package output corrected
+[13086]({{site.repo.engine}}/pull/13086) Gen package output corrected
 
-[13088]({{site.github}}/flutter/engine/pull/13088) felt: use rest args for specifying test targets
+[13088]({{site.repo.engine}}/pull/13088) felt: use rest args for specifying test targets
 
-[13089]({{site.github}}/flutter/engine/pull/13089) cleanup gen_package.py
+[13089]({{site.repo.engine}}/pull/13089) cleanup gen_package.py
 
-[13090]({{site.github}}/flutter/engine/pull/13090) Snapshot the felt tool for faster start-up
+[13090]({{site.repo.engine}}/pull/13090) Snapshot the felt tool for faster start-up
 
-[13091]({{site.github}}/flutter/engine/pull/13091) Remove persistent cache unittest timeout
+[13091]({{site.repo.engine}}/pull/13091) Remove persistent cache unittest timeout
 
-[13094]({{site.github}}/flutter/engine/pull/13094) Integrate more SkParagraph builder patches
+[13094]({{site.repo.engine}}/pull/13094) Integrate more SkParagraph builder patches
 
-[13096]({{site.github}}/flutter/engine/pull/13096) [dart_aot_runner] Use the host_toolchain to build kernels
+[13096]({{site.repo.engine}}/pull/13096) [dart_aot_runner] Use the host_toolchain to build kernels
 
-[13097]({{site.github}}/flutter/engine/pull/13097) Update felt README
+[13097]({{site.repo.engine}}/pull/13097) Update felt README
 
-[13101]({{site.github}}/flutter/engine/pull/13101) [dart_aot_runner] Generate vmservice aotsnapshots
+[13101]({{site.repo.engine}}/pull/13101) [dart_aot_runner] Generate vmservice aotsnapshots
 
-[13103]({{site.github}}/flutter/engine/pull/13103) [dart_aot_runner] Complete the port of dart_aot_runner
+[13103]({{site.repo.engine}}/pull/13103) [dart_aot_runner] Complete the port of dart_aot_runner
 
-[13121]({{site.github}}/flutter/engine/pull/13121) Change IO thread shader cache strategy
+[13121]({{site.repo.engine}}/pull/13121) Change IO thread shader cache strategy
 
-[13122]({{site.github}}/flutter/engine/pull/13122) refactoring chrome_installer
+[13122]({{site.repo.engine}}/pull/13122) refactoring chrome_installer
 
-[13123]({{site.github}}/flutter/engine/pull/13123) Upgrades the ICU version to 64.2
+[13123]({{site.repo.engine}}/pull/13123) Upgrades the ICU version to 64.2
 
-[13124]({{site.github}}/flutter/engine/pull/13124) Allow embedders to specify a render task runner description.
+[13124]({{site.repo.engine}}/pull/13124) Allow embedders to specify a render task runner description.
 
-[13125]({{site.github}}/flutter/engine/pull/13125) add the dart:__interceptors library to the dart sdk
+[13125]({{site.repo.engine}}/pull/13125) add the dart:__interceptors library to the dart sdk
 
-[13126]({{site.github}}/flutter/engine/pull/13126) [frontend_server] Include bytecode generation in the training run.
+[13126]({{site.repo.engine}}/pull/13126) [frontend_server] Include bytecode generation in the training run.
 
-[13143]({{site.github}}/flutter/engine/pull/13143) Add flutter_tester binary to the CIPD package
+[13143]({{site.repo.engine}}/pull/13143) Add flutter_tester binary to the CIPD package
 
-[13144]({{site.github}}/flutter/engine/pull/13144) Document //flutter/runtime/dart_vm
+[13144]({{site.repo.engine}}/pull/13144) Document //flutter/runtime/dart_vm
 
-[13151]({{site.github}}/flutter/engine/pull/13151) Remove incomplete static thread safety annotations.
+[13151]({{site.repo.engine}}/pull/13151) Remove incomplete static thread safety annotations.
 
-[13153]({{site.github}}/flutter/engine/pull/13153) Make the Dart isolate constructor private.
+[13153]({{site.repo.engine}}/pull/13153) Make the Dart isolate constructor private.
 
-[13154]({{site.github}}/flutter/engine/pull/13154) Fix an output file path for the frontend server package_incremental script
+[13154]({{site.repo.engine}}/pull/13154) Fix an output file path for the frontend server package_incremental script
 
-[13157]({{site.github}}/flutter/engine/pull/13157) Fix type error in SkVertices
+[13157]({{site.repo.engine}}/pull/13157) Fix type error in SkVertices
 
-[13159]({{site.github}}/flutter/engine/pull/13159) Move surface-based SceneBuilder implementation under surface/
+[13159]({{site.repo.engine}}/pull/13159) Move surface-based SceneBuilder implementation under surface/
 
-[13162]({{site.github}}/flutter/engine/pull/13162) Document //flutter/runtime/dart_isolate.h
+[13162]({{site.repo.engine}}/pull/13162) Document //flutter/runtime/dart_isolate.h
 
-[13175]({{site.github}}/flutter/engine/pull/13175) Remove redundant call to updateEditingState in sendKeyEvent
+[13175]({{site.repo.engine}}/pull/13175) Remove redundant call to updateEditingState in sendKeyEvent
 
-[13176]({{site.github}}/flutter/engine/pull/13176) Add repeatCount to FlutterKeyEvent
+[13176]({{site.repo.engine}}/pull/13176) Add repeatCount to FlutterKeyEvent
 
-[13177]({{site.github}}/flutter/engine/pull/13177) Update compiler to Clang 10.
+[13177]({{site.repo.engine}}/pull/13177) Update compiler to Clang 10.
 
-[13182]({{site.github}}/flutter/engine/pull/13182) If we get a 'down' event, add that device to the active devices.
+[13182]({{site.repo.engine}}/pull/13182) If we get a 'down' event, add that device to the active devices.
 
-[13185]({{site.github}}/flutter/engine/pull/13185) Adding firefox_installer.dart
+[13185]({{site.repo.engine}}/pull/13185) Adding firefox_installer.dart
 
-[13192]({{site.github}}/flutter/engine/pull/13192) Use window.devicePixelRatio in the CanvasKit backend
+[13192]({{site.repo.engine}}/pull/13192) Use window.devicePixelRatio in the CanvasKit backend
 
-[13193]({{site.github}}/flutter/engine/pull/13193) Custom compositor layers must take into account the device pixel ratio.
+[13193]({{site.repo.engine}}/pull/13193) Custom compositor layers must take into account the device pixel ratio.
 
-[13196]({{site.github}}/flutter/engine/pull/13196) Document //flutter/runtime/dart_snapshot.h
+[13196]({{site.repo.engine}}/pull/13196) Document //flutter/runtime/dart_snapshot.h
 
-[13207]({{site.github}}/flutter/engine/pull/13207) Wrap the text in text editing to fix selections.
+[13207]({{site.repo.engine}}/pull/13207) Wrap the text in text editing to fix selections.
 
-[13209]({{site.github}}/flutter/engine/pull/13209) Preserve stdout colors of subprocesses run by felt
+[13209]({{site.repo.engine}}/pull/13209) Preserve stdout colors of subprocesses run by felt
 
-[13212]({{site.github}}/flutter/engine/pull/13212) Add trace events around custom compositor callbacks.
+[13212]({{site.repo.engine}}/pull/13212) Add trace events around custom compositor callbacks.
 
-[13218]({{site.github}}/flutter/engine/pull/13218) Specify a human readable reason for an error from the embedder API.
+[13218]({{site.repo.engine}}/pull/13218) Specify a human readable reason for an error from the embedder API.
 
-[13232]({{site.github}}/flutter/engine/pull/13232) Avoid dereferencing IO manager weak pointers on the UI thread
+[13232]({{site.repo.engine}}/pull/13232) Avoid dereferencing IO manager weak pointers on the UI thread
 
-[13237]({{site.github}}/flutter/engine/pull/13237) Do not attempt to drain the SkiaUnrefQueue in the destructor
+[13237]({{site.repo.engine}}/pull/13237) Do not attempt to drain the SkiaUnrefQueue in the destructor
 
-[13238]({{site.github}}/flutter/engine/pull/13238) Allow embedders to update preferrred locales.
+[13238]({{site.repo.engine}}/pull/13238) Allow embedders to update preferrred locales.
 
-[13239]({{site.github}}/flutter/engine/pull/13239) Hold a reference to the Skia unref queue in UIDartState
+[13239]({{site.repo.engine}}/pull/13239) Hold a reference to the Skia unref queue in UIDartState
 
-[13240]({{site.github}}/flutter/engine/pull/13240) Update CanvasKit to 0.7.0 and flesh out painting
+[13240]({{site.repo.engine}}/pull/13240) Update CanvasKit to 0.7.0 and flesh out painting
 
-[13241]({{site.github}}/flutter/engine/pull/13241) Ignore *.obj files when gathering licenses
+[13241]({{site.repo.engine}}/pull/13241) Ignore *.obj files when gathering licenses
 
-[13242]({{site.github}}/flutter/engine/pull/13242) Update harfbuzz to 2.6.2, Roll buildroot to a518e
+[13242]({{site.repo.engine}}/pull/13242) Update harfbuzz to 2.6.2, Roll buildroot to a518e
 
-[13255]({{site.github}}/flutter/engine/pull/13255) Fix NPE in accessibility bridge
+[13255]({{site.repo.engine}}/pull/13255) Fix NPE in accessibility bridge
 
-[13261]({{site.github}}/flutter/engine/pull/13261) Updated license script to ignore testdata directories
+[13261]({{site.repo.engine}}/pull/13261) Updated license script to ignore testdata directories
 
-[13265]({{site.github}}/flutter/engine/pull/13265) Ensure we call into Engine from the UI taskrunner in Shell::EngineHasLivePorts()
+[13265]({{site.repo.engine}}/pull/13265) Ensure we call into Engine from the UI taskrunner in Shell::EngineHasLivePorts()
 
-[13269]({{site.github}}/flutter/engine/pull/13269) Send flag modified events to the framework
+[13269]({{site.repo.engine}}/pull/13269) Send flag modified events to the framework
 
-[13270]({{site.github}}/flutter/engine/pull/13270) Add recipe changelog
+[13270]({{site.repo.engine}}/pull/13270) Add recipe changelog
 
-[13274]({{site.github}}/flutter/engine/pull/13274) Fix decode feature detection in HtmlCodec
+[13274]({{site.repo.engine}}/pull/13274) Fix decode feature detection in HtmlCodec
 
-[13275]({{site.github}}/flutter/engine/pull/13275) Flesh out the CanvasKit backend some more
+[13275]({{site.repo.engine}}/pull/13275) Flesh out the CanvasKit backend some more
 
-[13292]({{site.github}}/flutter/engine/pull/13292) Disable flaky test ShellTest_ReportTimingsIsCalled.
+[13292]({{site.repo.engine}}/pull/13292) Disable flaky test ShellTest_ReportTimingsIsCalled.
 
-[13295]({{site.github}}/flutter/engine/pull/13295) Avoid accessing the Cocoa view on the GPU or IO task runners.
+[13295]({{site.repo.engine}}/pull/13295) Avoid accessing the Cocoa view on the GPU or IO task runners.
 
-[13311]({{site.github}}/flutter/engine/pull/13311) [recipe] Upload opt flutter_tester
+[13311]({{site.repo.engine}}/pull/13311) [recipe] Upload opt flutter_tester
 
-[13314]({{site.github}}/flutter/engine/pull/13314) Guarding EAGLContext used by Flutter
+[13314]({{site.repo.engine}}/pull/13314) Guarding EAGLContext used by Flutter
 
-[13319]({{site.github}}/flutter/engine/pull/13319) Add FlutterEngineRunsAOTCompiledDartCode to the embedder API.
+[13319]({{site.repo.engine}}/pull/13319) Add FlutterEngineRunsAOTCompiledDartCode to the embedder API.
 
-[13321]({{site.github}}/flutter/engine/pull/13321) Pass LinearTextFlag to SkFont - iOS13 letter spacing
+[13321]({{site.repo.engine}}/pull/13321) Pass LinearTextFlag to SkFont - iOS13 letter spacing
 
-[13337]({{site.github}}/flutter/engine/pull/13337) Bump dart/language_model to 9fJQZ0TrnAGQKrEtuL3-AXbUfPzYxqpN_OBHr9P4hE4C
+[13337]({{site.repo.engine}}/pull/13337) Bump dart/language_model to 9fJQZ0TrnAGQKrEtuL3-AXbUfPzYxqpN_OBHr9P4hE4C
 
-[13342]({{site.github}}/flutter/engine/pull/13342) Intercept SystemSound.play platform message before it's sent.
+[13342]({{site.repo.engine}}/pull/13342) Intercept SystemSound.play platform message before it's sent.
 
-[13345]({{site.github}}/flutter/engine/pull/13345) Expose platform view ID on embedder semantics node
+[13345]({{site.repo.engine}}/pull/13345) Expose platform view ID on embedder semantics node
 
-[13360]({{site.github}}/flutter/engine/pull/13360) Turn on RasterCache based on view hierarchy
+[13360]({{site.repo.engine}}/pull/13360) Turn on RasterCache based on view hierarchy
 
-[13361]({{site.github}}/flutter/engine/pull/13361) Expand on CanvasKit backend more
+[13361]({{site.repo.engine}}/pull/13361) Expand on CanvasKit backend more
 
-[13364]({{site.github}}/flutter/engine/pull/13364) [flutter_runner] Remove the checks for libdart profiler symbols
+[13364]({{site.repo.engine}}/pull/13364) [flutter_runner] Remove the checks for libdart profiler symbols
 
-[13367]({{site.github}}/flutter/engine/pull/13367) Delay metal drawable acquisition till frame submission.
+[13367]({{site.repo.engine}}/pull/13367) Delay metal drawable acquisition till frame submission.
 
-[13391]({{site.github}}/flutter/engine/pull/13391) Implement basic Picture.toImage via BitmapCanvas
+[13391]({{site.repo.engine}}/pull/13391) Implement basic Picture.toImage via BitmapCanvas
 
-[13395]({{site.github}}/flutter/engine/pull/13395) fix fml_unittes is not run during presubmit
+[13395]({{site.repo.engine}}/pull/13395) fix fml_unittes is not run during presubmit
 
-[13397]({{site.github}}/flutter/engine/pull/13397) [flutter_runner] Don't build far files twice
+[13397]({{site.repo.engine}}/pull/13397) [flutter_runner] Don't build far files twice
 
-[13401]({{site.github}}/flutter/engine/pull/13401) Reformat [BUILD.gn](http://build.gn/) files to comply with the format checker presubmit script
+[13401]({{site.repo.engine}}/pull/13401) Reformat [BUILD.gn](http://build.gn/) files to comply with the format checker presubmit script
 
-[13405]({{site.github}}/flutter/engine/pull/13405) Make sure root surface transformations survive resetting the matrix directly in Flow.
+[13405]({{site.repo.engine}}/pull/13405) Make sure root surface transformations survive resetting the matrix directly in Flow.
 
-[13406]({{site.github}}/flutter/engine/pull/13406) Fix the dry run mode of the GN format checker script
+[13406]({{site.repo.engine}}/pull/13406) Fix the dry run mode of the GN format checker script
 
-[13407]({{site.github}}/flutter/engine/pull/13407) Kick luci
+[13407]({{site.repo.engine}}/pull/13407) Kick luci
 
-[13419]({{site.github}}/flutter/engine/pull/13419) [dart_runner] Common libs need to exist for aot runner
+[13419]({{site.repo.engine}}/pull/13419) [dart_runner] Common libs need to exist for aot runner
 
-[13424]({{site.github}}/flutter/engine/pull/13424) Add isRunningInRobolectricTest back
+[13424]({{site.repo.engine}}/pull/13424) Add isRunningInRobolectricTest back
 
-[13440]({{site.github}}/flutter/engine/pull/13440) Switch to Cirrus Dockerfile as CI
+[13440]({{site.repo.engine}}/pull/13440) Switch to Cirrus Dockerfile as CI
 
-[13444]({{site.github}}/flutter/engine/pull/13444) Remove usage of yaml module from CIPD script
+[13444]({{site.repo.engine}}/pull/13444) Remove usage of yaml module from CIPD script
 
-[13448]({{site.github}}/flutter/engine/pull/13448) Duplicate the directory fd in fml::VisitFiles
+[13448]({{site.repo.engine}}/pull/13448) Duplicate the directory fd in fml::VisitFiles
 
-[13451]({{site.github}}/flutter/engine/pull/13451) Fix mDNS for iOS13
+[13451]({{site.repo.engine}}/pull/13451) Fix mDNS for iOS13
 
-[13460]({{site.github}}/flutter/engine/pull/13460) [dart] Makes the intl services available
+[13460]({{site.repo.engine}}/pull/13460) [dart] Makes the intl services available
 
-[13461]({{site.github}}/flutter/engine/pull/13461) CIPD needs the directory to be relative
+[13461]({{site.repo.engine}}/pull/13461) CIPD needs the directory to be relative
 
-[13464]({{site.github}}/flutter/engine/pull/13464) [recipe] Upload sky_engine to CIPD
+[13464]({{site.repo.engine}}/pull/13464) [recipe] Upload sky_engine to CIPD
 
-[13468]({{site.github}}/flutter/engine/pull/13468) Pass the automaticallyRegisterPlugins flag to the FlutterEngine constructor in FlutterActivityTest
+[13468]({{site.repo.engine}}/pull/13468) Pass the automaticallyRegisterPlugins flag to the FlutterEngine constructor in FlutterActivityTest
 
-[13478]({{site.github}}/flutter/engine/pull/13478) use check_output instead of check_call
+[13478]({{site.repo.engine}}/pull/13478) use check_output instead of check_call
 
-[13479]({{site.github}}/flutter/engine/pull/13479) Print the output
+[13479]({{site.repo.engine}}/pull/13479) Print the output
 
-[13630]({{site.github}}/flutter/engine/pull/13630) Fix bug where Enter doesn't add new line in multi-line fields
+[13630]({{site.repo.engine}}/pull/13630) Fix bug where Enter doesn't add new line in multi-line fields
 
-[13642]({{site.github}}/flutter/engine/pull/13642) Issues/39832 reland
+[13642]({{site.repo.engine}}/pull/13642) Issues/39832 reland
 
-[13643]({{site.github}}/flutter/engine/pull/13643) Ensure that the CAMetalLayer FBO attachments can be read from.
+[13643]({{site.repo.engine}}/pull/13643) Ensure that the CAMetalLayer FBO attachments can be read from.
 
-[13649]({{site.github}}/flutter/engine/pull/13649) Add 'Cough' test font and support multiple test fonts.
+[13649]({{site.repo.engine}}/pull/13649) Add 'Cough' test font and support multiple test fonts.
 
-[13695]({{site.github}}/flutter/engine/pull/13695) Fix Class.forName unchecked call warning
+[13695]({{site.repo.engine}}/pull/13695) Fix Class.forName unchecked call warning
 
-[13697]({{site.github}}/flutter/engine/pull/13697) Moves pointer event sanitizing to engine.
+[13697]({{site.repo.engine}}/pull/13697) Moves pointer event sanitizing to engine.
 
-[13708]({{site.github}}/flutter/engine/pull/13708) Ensure that the device pixel ratio is taken into account with window metrics in physical pixels.
+[13708]({{site.repo.engine}}/pull/13708) Ensure that the device pixel ratio is taken into account with window metrics in physical pixels.
 
-[13710]({{site.github}}/flutter/engine/pull/13710) Fix picture raster cache throttling
+[13710]({{site.repo.engine}}/pull/13710) Fix picture raster cache throttling
 
-[13711]({{site.github}}/flutter/engine/pull/13711) Imagefilter wrapper object
+[13711]({{site.repo.engine}}/pull/13711) Imagefilter wrapper object
 
-[13719]({{site.github}}/flutter/engine/pull/13719) Fix NPE in splash screen lookup
+[13719]({{site.repo.engine}}/pull/13719) Fix NPE in splash screen lookup
 
-[13727]({{site.github}}/flutter/engine/pull/13727) Add line boundary information to LineMetrics.
+[13727]({{site.repo.engine}}/pull/13727) Add line boundary information to LineMetrics.
 
-[13728]({{site.github}}/flutter/engine/pull/13728) Prefer SchedulerBinding.addTimingsCallback
+[13728]({{site.repo.engine}}/pull/13728) Prefer SchedulerBinding.addTimingsCallback
 
-[13731]({{site.github}}/flutter/engine/pull/13731) Expose the platform view mutator stack to custom compositors.
+[13731]({{site.repo.engine}}/pull/13731) Expose the platform view mutator stack to custom compositors.
 
-[13735]({{site.github}}/flutter/engine/pull/13735) Cleanup obsolete --strong option of front-end server
+[13735]({{site.repo.engine}}/pull/13735) Cleanup obsolete --strong option of front-end server
 
-[13736]({{site.github}}/flutter/engine/pull/13736) libtxt: pass an RTL bool flag instead of a bidiFlags enum to measureText
+[13736]({{site.repo.engine}}/pull/13736) libtxt: pass an RTL bool flag instead of a bidiFlags enum to measureText
 
-[13742]({{site.github}}/flutter/engine/pull/13742) Only specify --no-link-platform when not specifying --aot, roll dart-lang sdk
+[13742]({{site.repo.engine}}/pull/13742) Only specify --no-link-platform when not specifying --aot, roll dart-lang sdk
 
-[13744]({{site.github}}/flutter/engine/pull/13744) Create a new picture recorder even when the embedder supplied render target is recycled.
+[13744]({{site.repo.engine}}/pull/13744) Create a new picture recorder even when the embedder supplied render target is recycled.
 
-[13747]({{site.github}}/flutter/engine/pull/13747) Move TextRange from the framework to dart:ui.
+[13747]({{site.repo.engine}}/pull/13747) Move TextRange from the framework to dart:ui.
 
-[13760]({{site.github}}/flutter/engine/pull/13760) Implement Path.computeMetrics in the CanvasKit backend
+[13760]({{site.repo.engine}}/pull/13760) Implement Path.computeMetrics in the CanvasKit backend
 
-[13762]({{site.github}}/flutter/engine/pull/13762) Turn on RasterCache based on view hierarchy
+[13762]({{site.repo.engine}}/pull/13762) Turn on RasterCache based on view hierarchy
 
-[13765]({{site.github}}/flutter/engine/pull/13765) Change wordBoundary to take dynamic temporarily
+[13765]({{site.repo.engine}}/pull/13765) Change wordBoundary to take dynamic temporarily
 
-[13768]({{site.github}}/flutter/engine/pull/13768) Add ImageFilter and BackdropFilter to CanvasKit backend
+[13768]({{site.repo.engine}}/pull/13768) Add ImageFilter and BackdropFilter to CanvasKit backend
 
-[13772]({{site.github}}/flutter/engine/pull/13772) Move Path and PathMetrics from canvas.dart into their own files. No delta
+[13772]({{site.repo.engine}}/pull/13772) Move Path and PathMetrics from canvas.dart into their own files. No delta
 
-[13780]({{site.github}}/flutter/engine/pull/13780) Allow passing hot reload debugging flags through
+[13780]({{site.repo.engine}}/pull/13780) Allow passing hot reload debugging flags through
 
-[13781]({{site.github}}/flutter/engine/pull/13781) Create a WeakPtrFactory for use on the UI thread in VsyncWaiter
+[13781]({{site.repo.engine}}/pull/13781) Create a WeakPtrFactory for use on the UI thread in VsyncWaiter
 
-[13782]({{site.github}}/flutter/engine/pull/13782) Document the coordinate space of points in FlutterPointerEvent.
+[13782]({{site.repo.engine}}/pull/13782) Document the coordinate space of points in FlutterPointerEvent.
 
-[13784]({{site.github}}/flutter/engine/pull/13784) Add Helvetica and sans-serif as fallback font families
+[13784]({{site.repo.engine}}/pull/13784) Add Helvetica and sans-serif as fallback font families
 
-[13785]({{site.github}}/flutter/engine/pull/13785) Fix RendererContextSwitch result check in Rasterizer::MakeRasterSnapshot
+[13785]({{site.repo.engine}}/pull/13785) Fix RendererContextSwitch result check in Rasterizer::MakeRasterSnapshot
 
-[13786]({{site.github}}/flutter/engine/pull/13786) Take devicePixelRatio into account when drawing shadows
+[13786]({{site.repo.engine}}/pull/13786) Take devicePixelRatio into account when drawing shadows
 
-[13795]({{site.github}}/flutter/engine/pull/13795) Adds missing comma in EngineParagraphStyle.toString()
+[13795]({{site.repo.engine}}/pull/13795) Adds missing comma in EngineParagraphStyle.toString()
 
-[13796]({{site.github}}/flutter/engine/pull/13796) implement radial gradient in canvaskit backend
+[13796]({{site.repo.engine}}/pull/13796) implement radial gradient in canvaskit backend
 
-[13799]({{site.github}}/flutter/engine/pull/13799) Update version of dart/language_model distributed with flutter engine to latest
+[13799]({{site.repo.engine}}/pull/13799) Update version of dart/language_model distributed with flutter engine to latest
 
-[13803]({{site.github}}/flutter/engine/pull/13803) [build] Make --engine-version flag optional
+[13803]({{site.repo.engine}}/pull/13803) [build] Make --engine-version flag optional
 
-[13805]({{site.github}}/flutter/engine/pull/13805) Remove extra shadows from ParagraphStyle
+[13805]({{site.repo.engine}}/pull/13805) Remove extra shadows from ParagraphStyle
 
-[13812]({{site.github}}/flutter/engine/pull/13812) RendererContextSwitch guard flutter's gl context rework.
+[13812]({{site.repo.engine}}/pull/13812) RendererContextSwitch guard flutter's gl context rework.
 
-[13829]({{site.github}}/flutter/engine/pull/13829) [dart_runner] Initialize logging and tracing
+[13829]({{site.repo.engine}}/pull/13829) [dart_runner] Initialize logging and tracing
 
-[13832]({{site.github}}/flutter/engine/pull/13832) Remove unused import
+[13832]({{site.repo.engine}}/pull/13832) Remove unused import
 
-[13848]({{site.github}}/flutter/engine/pull/13848) Use Skia's matchStyleCSS3 to find bundled asset typefaces matching a font style
+[13848]({{site.repo.engine}}/pull/13848) Use Skia's matchStyleCSS3 to find bundled asset typefaces matching a font style
 
-[13850]({{site.github}}/flutter/engine/pull/13850) Fix test to account for pixel ratio transformations being framework responsibility.
+[13850]({{site.repo.engine}}/pull/13850) Fix test to account for pixel ratio transformations being framework responsibility.
 
-[13851]({{site.github}}/flutter/engine/pull/13851) Implement the rest of ui.Path methods for CanvasKit
+[13851]({{site.repo.engine}}/pull/13851) Implement the rest of ui.Path methods for CanvasKit
 
-[13869]({{site.github}}/flutter/engine/pull/13869) Changing test runner and platform to be browser independent
+[13869]({{site.repo.engine}}/pull/13869) Changing test runner and platform to be browser independent
 
-[13881]({{site.github}}/flutter/engine/pull/13881) Change edge conditions of getLineBoundary
+[13881]({{site.repo.engine}}/pull/13881) Change edge conditions of getLineBoundary
 
-[13902]({{site.github}}/flutter/engine/pull/13902) Adding opacity -> alpha method to Color class
+[13902]({{site.repo.engine}}/pull/13902) Adding opacity -> alpha method to Color class
 
-[13903]({{site.github}}/flutter/engine/pull/13903) Implement basic text rendering support in CanvasKit backend
+[13903]({{site.repo.engine}}/pull/13903) Implement basic text rendering support in CanvasKit backend
 
-[13904]({{site.github}}/flutter/engine/pull/13904) Fix withIn matcher distance function lookup
+[13904]({{site.repo.engine}}/pull/13904) Fix withIn matcher distance function lookup
 
-[13907]({{site.github}}/flutter/engine/pull/13907) allow ignoring toString, hashCode, and == in api_conform_test
+[13907]({{site.repo.engine}}/pull/13907) allow ignoring toString, hashCode, and == in api_conform_test
 
-[13908]({{site.github}}/flutter/engine/pull/13908) Made a way to turn off the OpenGL operations on the IO thread for backgrounded apps
+[13908]({{site.repo.engine}}/pull/13908) Made a way to turn off the OpenGL operations on the IO thread for backgrounded apps
 
-[13918]({{site.github}}/flutter/engine/pull/13918) Add virtual destructor to GPUSurfaceSoftwareDelegate.
+[13918]({{site.repo.engine}}/pull/13918) Add virtual destructor to GPUSurfaceSoftwareDelegate.
 
-[13926]({{site.github}}/flutter/engine/pull/13926) Add dev_compiler and frontend_server to package uploading rule
+[13926]({{site.repo.engine}}/pull/13926) Add dev_compiler and frontend_server to package uploading rule
 
-[13934]({{site.github}}/flutter/engine/pull/13934) Ensure we use the base CompositorContext's AcquireFrame method when screenshotting
+[13934]({{site.repo.engine}}/pull/13934) Ensure we use the base CompositorContext's AcquireFrame method when screenshotting
 
-[13943]({{site.github}}/flutter/engine/pull/13943) Made the thread checker print out the thread names on Apple platforms.
+[13943]({{site.repo.engine}}/pull/13943) Made the thread checker print out the thread names on Apple platforms.
 
-[13945]({{site.github}}/flutter/engine/pull/13945) Update SwiftShader to 5d1e854.
+[13945]({{site.repo.engine}}/pull/13945) Update SwiftShader to 5d1e854.
 
-[13962]({{site.github}}/flutter/engine/pull/13962) Added auto-reviewer config file
+[13962]({{site.repo.engine}}/pull/13962) Added auto-reviewer config file
 
-[13975]({{site.github}}/flutter/engine/pull/13975) Refactor to passing functions by const ref
+[13975]({{site.repo.engine}}/pull/13975) Refactor to passing functions by const ref
 
-[14082]({{site.github}}/flutter/engine/pull/14082) add pointer data santizing in flutter web engine
+[14082]({{site.repo.engine}}/pull/14082) add pointer data santizing in flutter web engine
 
 
 ## Plugins
@@ -2667,343 +2667,343 @@ In addition to the PRs listed below, please also check out the following release
 
 ### Tooling PRs
 
-[37508]({{site.github}}/flutter/flutter/pull/37508) build bundle with assemble
+[37508]({{site.repo.flutter}}/pull/37508) build bundle with assemble
 
-[37642]({{site.github}}/flutter/flutter/pull/37642) Unit test for build.dart::GenSnapshot
+[37642]({{site.repo.flutter}}/pull/37642) Unit test for build.dart::GenSnapshot
 
-[37832]({{site.github}}/flutter/flutter/pull/37832) add --exit and --match-host-platform defaults to devicelab runner
+[37832]({{site.repo.flutter}}/pull/37832) add --exit and --match-host-platform defaults to devicelab runner
 
-[37845]({{site.github}}/flutter/flutter/pull/37845) echo error messages to stderr
+[37845]({{site.repo.flutter}}/pull/37845) echo error messages to stderr
 
-[38560]({{site.github}}/flutter/flutter/pull/38560) refactor cocoapods validator to detect broken install
+[38560]({{site.repo.flutter}}/pull/38560) refactor cocoapods validator to detect broken install
 
-[38576]({{site.github}}/flutter/flutter/pull/38576) flutter_tools/version: git log.showSignature=false
+[38576]({{site.repo.flutter}}/pull/38576) flutter_tools/version: git log.showSignature=false
 
-[38632]({{site.github}}/flutter/flutter/pull/38632) Flutter Plugin Tool supports multi-platform plugin config
+[38632]({{site.repo.flutter}}/pull/38632) Flutter Plugin Tool supports multi-platform plugin config
 
-[38654]({{site.github}}/flutter/flutter/pull/38654) [flutter_tool] Remove some async file io
+[38654]({{site.repo.flutter}}/pull/38654) [flutter_tool] Remove some async file io
 
-[38869]({{site.github}}/flutter/flutter/pull/38869) Store file hashes per build configuration.
+[38869]({{site.repo.flutter}}/pull/38869) Store file hashes per build configuration.
 
-[38894]({{site.github}}/flutter/flutter/pull/38894) [flutter_tool] Move http request close under try-catch
+[38894]({{site.repo.flutter}}/pull/38894) [flutter_tool] Move http request close under try-catch
 
-[38907]({{site.github}}/flutter/flutter/pull/38907) Throw error when hot reload enters bad state
+[38907]({{site.repo.flutter}}/pull/38907) Throw error when hot reload enters bad state
 
-[38920]({{site.github}}/flutter/flutter/pull/38920) [flutter_tool] Handle crashes from doctor validators
+[38920]({{site.repo.flutter}}/pull/38920) [flutter_tool] Handle crashes from doctor validators
 
-[38925]({{site.github}}/flutter/flutter/pull/38925) [flutter_tool] Only send one crash report per run
+[38925]({{site.repo.flutter}}/pull/38925) [flutter_tool] Only send one crash report per run
 
-[38932]({{site.github}}/flutter/flutter/pull/38932) Add build warning for non-debug desktop builds
+[38932]({{site.repo.flutter}}/pull/38932) Add build warning for non-debug desktop builds
 
-[39000]({{site.github}}/flutter/flutter/pull/39000) Dont throw StateError when calling assemble
+[39000]({{site.repo.flutter}}/pull/39000) Dont throw StateError when calling assemble
 
-[39005]({{site.github}}/flutter/flutter/pull/39005) [flutter_tool] Teach crash reporter about HttpException
+[39005]({{site.repo.flutter}}/pull/39005) [flutter_tool] Teach crash reporter about HttpException
 
-[39013]({{site.github}}/flutter/flutter/pull/39013) Update package versions to latest
+[39013]({{site.repo.flutter}}/pull/39013) Update package versions to latest
 
-[39052]({{site.github}}/flutter/flutter/pull/39052) Make forward calls run interactively
+[39052]({{site.repo.flutter}}/pull/39052) Make forward calls run interactively
 
-[39136]({{site.github}}/flutter/flutter/pull/39136) [flutter_tool] Some additional input validation for 'version'
+[39136]({{site.repo.flutter}}/pull/39136) [flutter_tool] Some additional input validation for 'version'
 
-[39140]({{site.github}}/flutter/flutter/pull/39140) Move commands into their own shard
+[39140]({{site.repo.flutter}}/pull/39140) Move commands into their own shard
 
-[39147]({{site.github}}/flutter/flutter/pull/39147) Downgrade the AndroidX warning
+[39147]({{site.repo.flutter}}/pull/39147) Downgrade the AndroidX warning
 
-[39274]({{site.github}}/flutter/flutter/pull/39274) Use output dir instead of specific paths in assemble rules
+[39274]({{site.repo.flutter}}/pull/39274) Use output dir instead of specific paths in assemble rules
 
-[39280]({{site.github}}/flutter/flutter/pull/39280) [flutter_tool] Use a timeout for xcode showBuildSettings
+[39280]({{site.repo.flutter}}/pull/39280) [flutter_tool] Use a timeout for xcode showBuildSettings
 
-[39358]({{site.github}}/flutter/flutter/pull/39358) surface errors from build runner
+[39358]({{site.repo.flutter}}/pull/39358) surface errors from build runner
 
-[39445]({{site.github}}/flutter/flutter/pull/39445) [flutter_tool] Add onError callback to asyncGuard. Use it in Doctor
+[39445]({{site.repo.flutter}}/pull/39445) [flutter_tool] Add onError callback to asyncGuard. Use it in Doctor
 
-[39524]({{site.github}}/flutter/flutter/pull/39524) Register flutterVersion service in flutter_tools.
+[39524]({{site.repo.flutter}}/pull/39524) Register flutterVersion service in flutter_tools.
 
-[39530]({{site.github}}/flutter/flutter/pull/39530) keep symbols for profile
+[39530]({{site.repo.flutter}}/pull/39530) keep symbols for profile
 
-[39541]({{site.github}}/flutter/flutter/pull/39541) Handle single unsupported device
+[39541]({{site.repo.flutter}}/pull/39541) Handle single unsupported device
 
-[39555]({{site.github}}/flutter/flutter/pull/39555) Use feature flags to control build command visibility
+[39555]({{site.repo.flutter}}/pull/39555) Use feature flags to control build command visibility
 
-[39558]({{site.github}}/flutter/flutter/pull/39558) Filter error message from skip build script checks
+[39558]({{site.repo.flutter}}/pull/39558) Filter error message from skip build script checks
 
-[39579]({{site.github}}/flutter/flutter/pull/39579) [flutter_tools] Add a timeout to another showBuildSettings command
+[39579]({{site.repo.flutter}}/pull/39579) [flutter_tools] Add a timeout to another showBuildSettings command
 
-[39654]({{site.github}}/flutter/flutter/pull/39654) Use persisted build information to automatically clean old outputs
+[39654]({{site.repo.flutter}}/pull/39654) Use persisted build information to automatically clean old outputs
 
-[39699]({{site.github}}/flutter/flutter/pull/39699) Detecting when installing over MingW's Git Bash, fixing paths
+[39699]({{site.repo.flutter}}/pull/39699) Detecting when installing over MingW's Git Bash, fixing paths
 
-[39781]({{site.github}}/flutter/flutter/pull/39781) Add lib/generated_plugin_registrant.dart to gitignore
+[39781]({{site.repo.flutter}}/pull/39781) Add lib/generated_plugin_registrant.dart to gitignore
 
-[39782]({{site.github}}/flutter/flutter/pull/39782) Allow specifying a project for Xcode getInfo
+[39782]({{site.repo.flutter}}/pull/39782) Allow specifying a project for Xcode getInfo
 
-[39899]({{site.github}}/flutter/flutter/pull/39899) [flutter_tool] process.dart cleanup
+[39899]({{site.repo.flutter}}/pull/39899) [flutter_tool] process.dart cleanup
 
-[39997]({{site.github}}/flutter/flutter/pull/39997) Remove visibleForTesting annotation; this constructor is used outside…
+[39997]({{site.repo.flutter}}/pull/39997) Remove visibleForTesting annotation; this constructor is used outside…
 
-[40029]({{site.github}}/flutter/flutter/pull/40029) [BUG] Process all children of intent-filter instead of just the first one to identify default activity
+[40029]({{site.repo.flutter}}/pull/40029) [BUG] Process all children of intent-filter instead of just the first one to identify default activity
 
-[40131]({{site.github}}/flutter/flutter/pull/40131) ensure we use pub from flutter SDK
+[40131]({{site.repo.flutter}}/pull/40131) ensure we use pub from flutter SDK
 
-[40159]({{site.github}}/flutter/flutter/pull/40159) [flutter_tool] Kill a timing-out process before trying to drain its streams
+[40159]({{site.repo.flutter}}/pull/40159) [flutter_tool] Kill a timing-out process before trying to drain its streams
 
-[40171]({{site.github}}/flutter/flutter/pull/40171) Place hot reload artifacts in a temp directory
+[40171]({{site.repo.flutter}}/pull/40171) Place hot reload artifacts in a temp directory
 
-[40195]({{site.github}}/flutter/flutter/pull/40195) Make Swift plugin template swift-format compliant
+[40195]({{site.repo.flutter}}/pull/40195) Make Swift plugin template swift-format compliant
 
-[40210]({{site.github}}/flutter/flutter/pull/40210) make sure we launch with dwds
+[40210]({{site.repo.flutter}}/pull/40210) make sure we launch with dwds
 
-[40259]({{site.github}}/flutter/flutter/pull/40259) remove io and isolate from libraries
+[40259]({{site.repo.flutter}}/pull/40259) remove io and isolate from libraries
 
-[40366]({{site.github}}/flutter/flutter/pull/40366) Place existing dill into hot reload temp directory to boost initialization time
+[40366]({{site.repo.flutter}}/pull/40366) Place existing dill into hot reload temp directory to boost initialization time
 
-[40368]({{site.github}}/flutter/flutter/pull/40368) ensure dart2js does not compile unsupported packages
+[40368]({{site.repo.flutter}}/pull/40368) ensure dart2js does not compile unsupported packages
 
-[40397]({{site.github}}/flutter/flutter/pull/40397) Adds list required components when VS is not installed
+[40397]({{site.repo.flutter}}/pull/40397) Adds list required components when VS is not installed
 
-[40410]({{site.github}}/flutter/flutter/pull/40410) Remove fluter tool usage of protobuf
+[40410]({{site.repo.flutter}}/pull/40410) Remove fluter tool usage of protobuf
 
-[40435]({{site.github}}/flutter/flutter/pull/40435) [flutter_tool] Remove the synchronous -showBuildSettings
+[40435]({{site.repo.flutter}}/pull/40435) [flutter_tool] Remove the synchronous -showBuildSettings
 
-[40472]({{site.github}}/flutter/flutter/pull/40472) Dont kill other processes when starting desktop application
+[40472]({{site.repo.flutter}}/pull/40472) Dont kill other processes when starting desktop application
 
-[40783]({{site.github}}/flutter/flutter/pull/40783) ensure debug builds are only accessible through run
+[40783]({{site.repo.flutter}}/pull/40783) ensure debug builds are only accessible through run
 
-[40795]({{site.github}}/flutter/flutter/pull/40795) Update toolchain description to request the latest version
+[40795]({{site.repo.flutter}}/pull/40795) Update toolchain description to request the latest version
 
-[40968]({{site.github}}/flutter/flutter/pull/40968) add missing trailing commas in flutter_tools
+[40968]({{site.repo.flutter}}/pull/40968) add missing trailing commas in flutter_tools
 
-[40988]({{site.github}}/flutter/flutter/pull/40988) [flutter_tool] Report rss high watermark in command analytics events
+[40988]({{site.repo.flutter}}/pull/40988) [flutter_tool] Report rss high watermark in command analytics events
 
-[41224]({{site.github}}/flutter/flutter/pull/41224) fix flutter error report correct local widget
+[41224]({{site.repo.flutter}}/pull/41224) fix flutter error report correct local widget
 
-[41304]({{site.github}}/flutter/flutter/pull/41304) [flutter_tools] Allows adding multiple signal handlers
+[41304]({{site.repo.flutter}}/pull/41304) [flutter_tools] Allows adding multiple signal handlers
 
-[41401]({{site.github}}/flutter/flutter/pull/41401) Flutter build bundle without --precompiled should always perform a debug build.
+[41401]({{site.repo.flutter}}/pull/41401) Flutter build bundle without --precompiled should always perform a debug build.
 
-[41406]({{site.github}}/flutter/flutter/pull/41406) Retry devfs uploads in case they fail.
+[41406]({{site.repo.flutter}}/pull/41406) Retry devfs uploads in case they fail.
 
-[41424]({{site.github}}/flutter/flutter/pull/41424) Don't update last compiled time when compilation is rejected
+[41424]({{site.repo.flutter}}/pull/41424) Don't update last compiled time when compilation is rejected
 
-[41447]({{site.github}}/flutter/flutter/pull/41447) Switch to assemble API for dart2js
+[41447]({{site.repo.flutter}}/pull/41447) Switch to assemble API for dart2js
 
-[41493]({{site.github}}/flutter/flutter/pull/41493) [flutter_tool] Report to analytics when the tool is killed by a signal
+[41493]({{site.repo.flutter}}/pull/41493) [flutter_tool] Report to analytics when the tool is killed by a signal
 
-[41514]({{site.github}}/flutter/flutter/pull/41514) Ensure we find dart.exe on local engines
+[41514]({{site.repo.flutter}}/pull/41514) Ensure we find dart.exe on local engines
 
-[41519]({{site.github}}/flutter/flutter/pull/41519) Make desktop stopApp only apply to processes Flutter started
+[41519]({{site.repo.flutter}}/pull/41519) Make desktop stopApp only apply to processes Flutter started
 
-[41583]({{site.github}}/flutter/flutter/pull/41583) Add debugging option to write vmservice address to file after starting
+[41583]({{site.repo.flutter}}/pull/41583) Add debugging option to write vmservice address to file after starting
 
-[41610]({{site.github}}/flutter/flutter/pull/41610) track unused inputs in build_runner
+[41610]({{site.repo.flutter}}/pull/41610) track unused inputs in build_runner
 
-[41621]({{site.github}}/flutter/flutter/pull/41621) change logging in mDNS discovery to verbose-mode only
+[41621]({{site.repo.flutter}}/pull/41621) change logging in mDNS discovery to verbose-mode only
 
-[41652]({{site.github}}/flutter/flutter/pull/41652) [flutter_tools] Add more info to pub get failure event
+[41652]({{site.repo.flutter}}/pull/41652) [flutter_tools] Add more info to pub get failure event
 
-[41687]({{site.github}}/flutter/flutter/pull/41687) Use processManager.run() instead of manually capturing streams in test_utils getPackages()
+[41687]({{site.repo.flutter}}/pull/41687) Use processManager.run() instead of manually capturing streams in test_utils getPackages()
 
-[41697]({{site.github}}/flutter/flutter/pull/41697) Handle missing .packages file in the flutter tool for prebuilt artifacts
+[41697]({{site.repo.flutter}}/pull/41697) Handle missing .packages file in the flutter tool for prebuilt artifacts
 
-[41735]({{site.github}}/flutter/flutter/pull/41735) handle empty entry in asset list and add more explicit validation
+[41735]({{site.repo.flutter}}/pull/41735) handle empty entry in asset list and add more explicit validation
 
-[41751]({{site.github}}/flutter/flutter/pull/41751) Add support for downloading x86 JIT release artifact
+[41751]({{site.repo.flutter}}/pull/41751) Add support for downloading x86 JIT release artifact
 
-[41788]({{site.github}}/flutter/flutter/pull/41788) Reduce log verbosity by removing individual used files
+[41788]({{site.repo.flutter}}/pull/41788) Reduce log verbosity by removing individual used files
 
-[41832]({{site.github}}/flutter/flutter/pull/41832) Plumb --enable-asserts through to frontend_server invocation in debug…
+[41832]({{site.repo.flutter}}/pull/41832) Plumb --enable-asserts through to frontend_server invocation in debug…
 
-[41862]({{site.github}}/flutter/flutter/pull/41862) Make output directory a build input
+[41862]({{site.repo.flutter}}/pull/41862) Make output directory a build input
 
-[41989]({{site.github}}/flutter/flutter/pull/41989) Flutter doctor should require java 1.8+
+[41989]({{site.repo.flutter}}/pull/41989) Flutter doctor should require java 1.8+
 
-[42008]({{site.github}}/flutter/flutter/pull/42008) Restructure ProjectFileInvalidator.findInvalidated a bit
+[42008]({{site.repo.flutter}}/pull/42008) Restructure ProjectFileInvalidator.findInvalidated a bit
 
-[42016]({{site.github}}/flutter/flutter/pull/42016) [flutter_tool] Re-work analytics events to use labels and values
+[42016]({{site.repo.flutter}}/pull/42016) [flutter_tool] Re-work analytics events to use labels and values
 
-[42026]({{site.github}}/flutter/flutter/pull/42026) Stop leaking iproxy processes
+[42026]({{site.repo.flutter}}/pull/42026) Stop leaking iproxy processes
 
-[42028]({{site.github}}/flutter/flutter/pull/42028) Make ProjectFileInvalidator.findInvalidated able to use the async FileStat.stat
+[42028]({{site.repo.flutter}}/pull/42028) Make ProjectFileInvalidator.findInvalidated able to use the async FileStat.stat
 
-[42187]({{site.github}}/flutter/flutter/pull/42187) Be more verbose when pub fails
+[42187]({{site.repo.flutter}}/pull/42187) Be more verbose when pub fails
 
-[42209]({{site.github}}/flutter/flutter/pull/42209) Add error logging to flutter generate
+[42209]({{site.repo.flutter}}/pull/42209) Add error logging to flutter generate
 
-[42243]({{site.github}}/flutter/flutter/pull/42243) Improve trailing whitespace message
+[42243]({{site.repo.flutter}}/pull/42243) Improve trailing whitespace message
 
-[42252]({{site.github}}/flutter/flutter/pull/42252) catch argument error from Make
+[42252]({{site.repo.flutter}}/pull/42252) catch argument error from Make
 
-[42353]({{site.github}}/flutter/flutter/pull/42353) Add --cache-sksl flag to drive and run
+[42353]({{site.repo.flutter}}/pull/42353) Add --cache-sksl flag to drive and run
 
-[42354]({{site.github}}/flutter/flutter/pull/42354) Pass -Ddart.developer.causal_async_stacks=true to frontend_server invocations.
+[42354]({{site.repo.flutter}}/pull/42354) Pass -Ddart.developer.causal_async_stacks=true to frontend_server invocations.
 
-[42364]({{site.github}}/flutter/flutter/pull/42364) Wrap dwds in async guard, only catch known error types
+[42364]({{site.repo.flutter}}/pull/42364) Wrap dwds in async guard, only catch known error types
 
-[42373]({{site.github}}/flutter/flutter/pull/42373) Switch build commands to use process utils
+[42373]({{site.repo.flutter}}/pull/42373) Switch build commands to use process utils
 
-[42376]({{site.github}}/flutter/flutter/pull/42376) Add option to precache unsigned mac binaries.
+[42376]({{site.repo.flutter}}/pull/42376) Add option to precache unsigned mac binaries.
 
-[42471]({{site.github}}/flutter/flutter/pull/42471) Pass build mode-specific bytecode generation options to frontend_server.
+[42471]({{site.repo.flutter}}/pull/42471) Pass build mode-specific bytecode generation options to frontend_server.
 
-[42476]({{site.github}}/flutter/flutter/pull/42476) Refactor BuildMode into class, add jit_release configuration
+[42476]({{site.repo.flutter}}/pull/42476) Refactor BuildMode into class, add jit_release configuration
 
-[42491]({{site.github}}/flutter/flutter/pull/42491) Extra defensive programming for pub modification time assert
+[42491]({{site.repo.flutter}}/pull/42491) Extra defensive programming for pub modification time assert
 
-[42538]({{site.github}}/flutter/flutter/pull/42538) [flutter_tool] Improve yaml font map validation
+[42538]({{site.repo.flutter}}/pull/42538) [flutter_tool] Improve yaml font map validation
 
-[42597]({{site.github}}/flutter/flutter/pull/42597) Deflake wildcard asset test
+[42597]({{site.repo.flutter}}/pull/42597) Deflake wildcard asset test
 
-[42655]({{site.github}}/flutter/flutter/pull/42655) resident_web_runner doesn't close debug connection
+[42655]({{site.repo.flutter}}/pull/42655) resident_web_runner doesn't close debug connection
 
-[42656]({{site.github}}/flutter/flutter/pull/42656) Catch appInstanceId error
+[42656]({{site.repo.flutter}}/pull/42656) Catch appInstanceId error
 
-[42668]({{site.github}}/flutter/flutter/pull/42668) dispose devices on cleanupAtFinish() for run_cold.dart
+[42668]({{site.repo.flutter}}/pull/42668) dispose devices on cleanupAtFinish() for run_cold.dart
 
-[42698]({{site.github}}/flutter/flutter/pull/42698) Ensure we stop the status when browser connection is complete
+[42698]({{site.repo.flutter}}/pull/42698) Ensure we stop the status when browser connection is complete
 
-[42791]({{site.github}}/flutter/flutter/pull/42791) fix type error in manifest asset bundle
+[42791]({{site.repo.flutter}}/pull/42791) fix type error in manifest asset bundle
 
-[42813]({{site.github}}/flutter/flutter/pull/42813) Fix NPE in Chrome Device
+[42813]({{site.repo.flutter}}/pull/42813) Fix NPE in Chrome Device
 
-[42972]({{site.github}}/flutter/flutter/pull/42972) Do not produce an error when encountering a new type in a service response.
+[42972]({{site.repo.flutter}}/pull/42972) Do not produce an error when encountering a new type in a service response.
 
-[42977]({{site.github}}/flutter/flutter/pull/42977) switch dart2js build to depfile, remove Source.function
+[42977]({{site.repo.flutter}}/pull/42977) switch dart2js build to depfile, remove Source.function
 
-[43016]({{site.github}}/flutter/flutter/pull/43016) ensure we can disable --track-widget-creation in debug mode
+[43016]({{site.repo.flutter}}/pull/43016) ensure we can disable --track-widget-creation in debug mode
 
-[43022]({{site.github}}/flutter/flutter/pull/43022) Enable dump-skp-on-shader-compilation in drive
+[43022]({{site.repo.flutter}}/pull/43022) Enable dump-skp-on-shader-compilation in drive
 
-[43042]({{site.github}}/flutter/flutter/pull/43042) add samsungexynos7570 to list of known physical devices
+[43042]({{site.repo.flutter}}/pull/43042) add samsungexynos7570 to list of known physical devices
 
-[43080]({{site.github}}/flutter/flutter/pull/43080) Indent Kotlin code with 4 spaces
+[43080]({{site.repo.flutter}}/pull/43080) Indent Kotlin code with 4 spaces
 
-[43180]({{site.github}}/flutter/flutter/pull/43180) Adding missing break in plugin validation check
+[43180]({{site.repo.flutter}}/pull/43180) Adding missing break in plugin validation check
 
-[43217]({{site.github}}/flutter/flutter/pull/43217) [flutter_tool] Update analytics policy, send event on disable
+[43217]({{site.repo.flutter}}/pull/43217) [flutter_tool] Update analytics policy, send event on disable
 
-[43219]({{site.github}}/flutter/flutter/pull/43219) Add devfs for incremental compiler JavaScript bundle
+[43219]({{site.repo.flutter}}/pull/43219) Add devfs for incremental compiler JavaScript bundle
 
-[43225]({{site.github}}/flutter/flutter/pull/43225) Catch io.StdinException from failure to set stdin echo/line mode
+[43225]({{site.repo.flutter}}/pull/43225) Catch io.StdinException from failure to set stdin echo/line mode
 
-[43281]({{site.github}}/flutter/flutter/pull/43281) Add compiler configuration to support dartdevc target
+[43281]({{site.repo.flutter}}/pull/43281) Add compiler configuration to support dartdevc target
 
-[43292]({{site.github}}/flutter/flutter/pull/43292) initial bootstrap script for incremental compiler support
+[43292]({{site.repo.flutter}}/pull/43292) initial bootstrap script for incremental compiler support
 
-[43381]({{site.github}}/flutter/flutter/pull/43381) [flutter_tool] Use engine flutter_runner prebuilts
+[43381]({{site.repo.flutter}}/pull/43381) [flutter_tool] Use engine flutter_runner prebuilts
 
-[43390]({{site.github}}/flutter/flutter/pull/43390) catch ChromeDebugException from dwds
+[43390]({{site.repo.flutter}}/pull/43390) catch ChromeDebugException from dwds
 
-[43401]({{site.github}}/flutter/flutter/pull/43401) Handle permission error during flutter clean
+[43401]({{site.repo.flutter}}/pull/43401) Handle permission error during flutter clean
 
-[43402]({{site.github}}/flutter/flutter/pull/43402) Handle format error from vswhere
+[43402]({{site.repo.flutter}}/pull/43402) Handle format error from vswhere
 
-[43403]({{site.github}}/flutter/flutter/pull/43403) Handle version and option skew errors
+[43403]({{site.repo.flutter}}/pull/43403) Handle version and option skew errors
 
-[43436]({{site.github}}/flutter/flutter/pull/43436) Handle onError callback with optional argument
+[43436]({{site.repo.flutter}}/pull/43436) Handle onError callback with optional argument
 
-[43448]({{site.github}}/flutter/flutter/pull/43448) Don't html-escape in the plugin registrant templates.
+[43448]({{site.repo.flutter}}/pull/43448) Don't html-escape in the plugin registrant templates.
 
-[43471]({{site.github}}/flutter/flutter/pull/43471) flip track widget creation on by default
+[43471]({{site.repo.flutter}}/pull/43471) flip track widget creation on by default
 
-[43544]({{site.github}}/flutter/flutter/pull/43544) Catch AppConnectionException
+[43544]({{site.repo.flutter}}/pull/43544) Catch AppConnectionException
 
-[43546]({{site.github}}/flutter/flutter/pull/43546) Alias upgrade-packages => update-packages
+[43546]({{site.repo.flutter}}/pull/43546) Alias upgrade-packages => update-packages
 
-[43577]({{site.github}}/flutter/flutter/pull/43577) set trace to true for desktop builds
+[43577]({{site.repo.flutter}}/pull/43577) set trace to true for desktop builds
 
-[43586]({{site.github}}/flutter/flutter/pull/43586) Ensure Chrome is closed on tab close
+[43586]({{site.repo.flutter}}/pull/43586) Ensure Chrome is closed on tab close
 
-[43598]({{site.github}}/flutter/flutter/pull/43598) Catch failed daemon startup error
+[43598]({{site.repo.flutter}}/pull/43598) Catch failed daemon startup error
 
-[43599]({{site.github}}/flutter/flutter/pull/43599) catch failure to parse FLUTTER_STORAGE_BASE_URL
+[43599]({{site.repo.flutter}}/pull/43599) catch failure to parse FLUTTER_STORAGE_BASE_URL
 
-[43602]({{site.github}}/flutter/flutter/pull/43602) Don't indefinitely persist file hashes, handle more error conditions
+[43602]({{site.repo.flutter}}/pull/43602) Don't indefinitely persist file hashes, handle more error conditions
 
-[43667]({{site.github}}/flutter/flutter/pull/43667) Added a null check for ranges in the sourceReport map.
+[43667]({{site.repo.flutter}}/pull/43667) Added a null check for ranges in the sourceReport map.
 
-[43725]({{site.github}}/flutter/flutter/pull/43725) Add reloadMethod RPC
+[43725]({{site.repo.flutter}}/pull/43725) Add reloadMethod RPC
 
-[43753]({{site.github}}/flutter/flutter/pull/43753) pass --no-gen-bytecode to aot kernel compiler invocations
+[43753]({{site.repo.flutter}}/pull/43753) pass --no-gen-bytecode to aot kernel compiler invocations
 
-[43764]({{site.github}}/flutter/flutter/pull/43764) Update create.dart
+[43764]({{site.repo.flutter}}/pull/43764) Update create.dart
 
-[43767]({{site.github}}/flutter/flutter/pull/43767) check if libimobiledevice executables exist
+[43767]({{site.repo.flutter}}/pull/43767) check if libimobiledevice executables exist
 
-[43800]({{site.github}}/flutter/flutter/pull/43800) de-flake logger test
+[43800]({{site.repo.flutter}}/pull/43800) de-flake logger test
 
-[43862]({{site.github}}/flutter/flutter/pull/43862) Ensure target platform is passed is always passed
+[43862]({{site.repo.flutter}}/pull/43862) Ensure target platform is passed is always passed
 
-[43870]({{site.github}}/flutter/flutter/pull/43870) check for instanceof instead of runtimeType
+[43870]({{site.repo.flutter}}/pull/43870) check for instanceof instead of runtimeType
 
-[43907]({{site.github}}/flutter/flutter/pull/43907) Serve correct mime type on release dev server
+[43907]({{site.repo.flutter}}/pull/43907) Serve correct mime type on release dev server
 
-[43908]({{site.github}}/flutter/flutter/pull/43908) remove no-gen-bytecode flag
+[43908]({{site.repo.flutter}}/pull/43908) remove no-gen-bytecode flag
 
-[43945]({{site.github}}/flutter/flutter/pull/43945) Remove Source.behavior, fix bug in depfile invalidation
+[43945]({{site.repo.flutter}}/pull/43945) Remove Source.behavior, fix bug in depfile invalidation
 
-[44017]({{site.github}}/flutter/flutter/pull/44017) Asset server fix for sourcemaps
+[44017]({{site.repo.flutter}}/pull/44017) Asset server fix for sourcemaps
 
-[44027]({{site.github}}/flutter/flutter/pull/44027) Allow specifying device-vmservice-port and host-vmservice-port
+[44027]({{site.repo.flutter}}/pull/44027) Allow specifying device-vmservice-port and host-vmservice-port
 
-[44032]({{site.github}}/flutter/flutter/pull/44032) Copy chrome preferences to seeded data dir
+[44032]({{site.repo.flutter}}/pull/44032) Copy chrome preferences to seeded data dir
 
-[44052]({{site.github}}/flutter/flutter/pull/44052) Remove flutter_tool services code
+[44052]({{site.repo.flutter}}/pull/44052) Remove flutter_tool services code
 
-[44083]({{site.github}}/flutter/flutter/pull/44083) Add --dart-define option
+[44083]({{site.repo.flutter}}/pull/44083) Add --dart-define option
 
-[44119]({{site.github}}/flutter/flutter/pull/44119) [flutter_tool] --flutter_runner will download the debug symbols
+[44119]({{site.repo.flutter}}/pull/44119) [flutter_tool] --flutter_runner will download the debug symbols
 
-[44146]({{site.github}}/flutter/flutter/pull/44146) Remove flutter.yaml migration code
+[44146]({{site.repo.flutter}}/pull/44146) Remove flutter.yaml migration code
 
-[44200]({{site.github}}/flutter/flutter/pull/44200) Make ProjectFileInvalidator injectable
+[44200]({{site.repo.flutter}}/pull/44200) Make ProjectFileInvalidator injectable
 
-[44221]({{site.github}}/flutter/flutter/pull/44221) Use platform appropriate filepaths
+[44221]({{site.repo.flutter}}/pull/44221) Use platform appropriate filepaths
 
-[44227]({{site.github}}/flutter/flutter/pull/44227) [flutter_tool] Screenshot command must require device only for _kDeviceType
+[44227]({{site.repo.flutter}}/pull/44227) [flutter_tool] Screenshot command must require device only for _kDeviceType
 
-[44278]({{site.github}}/flutter/flutter/pull/44278) Do not pass obsolete --strong option to front-end server
+[44278]({{site.repo.flutter}}/pull/44278) Do not pass obsolete --strong option to front-end server
 
-[44279]({{site.github}}/flutter/flutter/pull/44279) link platform should be true for profile
+[44279]({{site.repo.flutter}}/pull/44279) link platform should be true for profile
 
-[44360]({{site.github}}/flutter/flutter/pull/44360) [flutter_tool] Stream artifact downloads to files
+[44360]({{site.repo.flutter}}/pull/44360) [flutter_tool] Stream artifact downloads to files
 
-[44447]({{site.github}}/flutter/flutter/pull/44447) implicit-casts:false on flutter_tools/lib
+[44447]({{site.repo.flutter}}/pull/44447) implicit-casts:false on flutter_tools/lib
 
-[44481]({{site.github}}/flutter/flutter/pull/44481) Provide specific field to accept depfiles in target class
+[44481]({{site.repo.flutter}}/pull/44481) Provide specific field to accept depfiles in target class
 
-[44488]({{site.github}}/flutter/flutter/pull/44488) Refactorings to testbed.run and testbed.test
+[44488]({{site.repo.flutter}}/pull/44488) Refactorings to testbed.run and testbed.test
 
-[44574]({{site.github}}/flutter/flutter/pull/44574) Print a message when modifying settings that you may need to reload IDE/editor
+[44574]({{site.repo.flutter}}/pull/44574) Print a message when modifying settings that you may need to reload IDE/editor
 
-[44608]({{site.github}}/flutter/flutter/pull/44608) Reduce some direct package:archive usage
+[44608]({{site.repo.flutter}}/pull/44608) Reduce some direct package:archive usage
 
-[44753]({{site.github}}/flutter/flutter/pull/44753) Always link desktop platforms
+[44753]({{site.repo.flutter}}/pull/44753) Always link desktop platforms
 
-[44868]({{site.github}}/flutter/flutter/pull/44868) Catch and display version check errors during doctor
+[44868]({{site.repo.flutter}}/pull/44868) Catch and display version check errors during doctor
 
-[44933]({{site.github}}/flutter/flutter/pull/44933) [flutter_tool] Don't crash when failing to delete downloaded artifacts
+[44933]({{site.repo.flutter}}/pull/44933) [flutter_tool] Don't crash when failing to delete downloaded artifacts
 
-[44966]({{site.github}}/flutter/flutter/pull/44966) Don't log stack traces to console on build failures
+[44966]({{site.repo.flutter}}/pull/44966) Don't log stack traces to console on build failures
 
-[45011]({{site.github}}/flutter/flutter/pull/45011) catch IOSDeviceNotFoundError in IOSDevice.startApp()
+[45011]({{site.repo.flutter}}/pull/45011) catch IOSDeviceNotFoundError in IOSDevice.startApp()
 
-[45153]({{site.github}}/flutter/flutter/pull/45153) implicit-casts:false on flutter_tools
+[45153]({{site.repo.flutter}}/pull/45153) implicit-casts:false on flutter_tools
 
-[45236]({{site.github}}/flutter/flutter/pull/45236) Improve time to development by initializing frontend_server concurrently with platform build
+[45236]({{site.repo.flutter}}/pull/45236) Improve time to development by initializing frontend_server concurrently with platform build
 
-[45239]({{site.github}}/flutter/flutter/pull/45239) implicit-casts:false in fuchsia_remote_debug_protocol
+[45239]({{site.repo.flutter}}/pull/45239) implicit-casts:false in fuchsia_remote_debug_protocol
 
-[45303]({{site.github}}/flutter/flutter/pull/45303) Allow unknown fields in pubspec plugin section
+[45303]({{site.repo.flutter}}/pull/45303) Allow unknown fields in pubspec plugin section
 
-[45317]({{site.github}}/flutter/flutter/pull/45317) de-null dartDefines in daemon mode
+[45317]({{site.repo.flutter}}/pull/45317) de-null dartDefines in daemon mode
 
-[45319]({{site.github}}/flutter/flutter/pull/45319) catch parse error from corrupt config
+[45319]({{site.repo.flutter}}/pull/45319) catch parse error from corrupt config
 
-[45364]({{site.github}}/flutter/flutter/pull/45364) Allow a no-op default_package key for a plugin platform
+[45364]({{site.repo.flutter}}/pull/45364) Allow a no-op default_package key for a plugin platform
 
-[45407]({{site.github}}/flutter/flutter/pull/45407) Don't crash if the tool cannot delete asset directory
+[45407]({{site.repo.flutter}}/pull/45407) Don't crash if the tool cannot delete asset directory
 
-[46011]({{site.github}}/flutter/flutter/pull/46011) [flutter_tool] Do not continue with a no-op 'upgrade'
+[46011]({{site.repo.flutter}}/pull/46011) [flutter_tool] Do not continue with a no-op 'upgrade'
 
 
 ## Full PR List
@@ -3011,7 +3011,7 @@ In addition to the PRs listed below, please also check out the following release
  See the [full list]({{site.url}}/release/release-notes/changelogs/changelog-1.12.13) of merged PRs for the 1.12 release.
 
 
-[breaking change policy on the Flutter wiki]: {{site.github}}/flutter/flutter/wiki/Tree-hygiene#handling-breaking-changes
+[breaking change policy on the Flutter wiki]: {{site.repo.flutter}}/wiki/Tree-hygiene#handling-breaking-changes
 [flutter-announce]: https://groups.google.com/g/flutter-announce
 [GitHub Octoverse report]: https://octoverse.github.com/
 [this post from Ian Hickson]: https://groups.google.com/g/flutter-announce/c/Z09a317E21o
diff --git a/src/release/release-notes/release-notes-3.0.0.md b/src/release/release-notes/release-notes-3.0.0.md
index b68f09f214..e9973066c3 100644
--- a/src/release/release-notes/release-notes-3.0.0.md
+++ b/src/release/release-notes/release-notes-3.0.0.md
@@ -7,7 +7,7 @@ This page has release notes for 3.0.0.
 For information about subsequent bug-fix releases,
 see [Hotfixes to the Stable Channel][].
 
-[Hotfixes to the Stable Channel]: {{site.github}}/flutter/flutter/wiki/Hotfixes-to-the-Stable-Channel
+[Hotfixes to the Stable Channel]: {{site.repo.flutter}}/wiki/Hotfixes-to-the-Stable-Channel
 
 ## If you see warnings about bindings
 
@@ -86,7 +86,7 @@ If the error messages do not point to one of your dependencies,
 and `dart fix --apply` doesn't fix the issue,
 or if the warnings are fatal
 (for example, your application refuses to run), please
-[file a bug]({{site.github}}/flutter/flutter/issues/new/choose).
+[file a bug]({{site.repo.flutter}}/issues/new/choose).
 
 ## What's Changed
 
diff --git a/src/release/release-notes/release-notes-3.10.0.md b/src/release/release-notes/release-notes-3.10.0.md
index b401fd5de6..8b0f30cf47 100644
--- a/src/release/release-notes/release-notes-3.10.0.md
+++ b/src/release/release-notes/release-notes-3.10.0.md
@@ -7,7 +7,7 @@ This page has release notes for 3.10.0.
 For information about subsequent bug-fix releases,
 see [Hotfixes to the Stable Channel][].
 
-[Hotfixes to the Stable Channel]: {{site.github}}/flutter/flutter/wiki/Hotfixes-to-the-Stable-Channel
+[Hotfixes to the Stable Channel]: {{site.repo.flutter}}/wiki/Hotfixes-to-the-Stable-Channel
 
 ## Framework
 
diff --git a/src/release/release-notes/release-notes-3.13.0.md b/src/release/release-notes/release-notes-3.13.0.md
index 223a2267c0..ea7cb5abba 100644
--- a/src/release/release-notes/release-notes-3.13.0.md
+++ b/src/release/release-notes/release-notes-3.13.0.md
@@ -7,7 +7,7 @@ This page has release notes for 3.13.0.
 For information about subsequent bug-fix releases,
 see [Hotfixes to the Stable Channel][].
 
-[Hotfixes to the Stable Channel]: {{site.github}}/flutter/flutter/wiki/Hotfixes-to-the-Stable-Channel
+[Hotfixes to the Stable Channel]: {{site.repo.flutter}}/wiki/Hotfixes-to-the-Stable-Channel
 
 ## Framework
 
diff --git a/src/release/release-notes/release-notes-3.16.0.md b/src/release/release-notes/release-notes-3.16.0.md
index a61c52cf79..2056c9284a 100644
--- a/src/release/release-notes/release-notes-3.16.0.md
+++ b/src/release/release-notes/release-notes-3.16.0.md
@@ -8,7 +8,7 @@ This page has release notes for 3.16.0.
 For information about subsequent bug-fix releases,
 see [Hotfixes to the Stable Channel][].
 
-[Hotfixes to the Stable Channel]: {{site.github}}/flutter/flutter/wiki/Hotfixes-to-the-Stable-Channel
+[Hotfixes to the Stable Channel]: {{site.repo.flutter}}/wiki/Hotfixes-to-the-Stable-Channel
 
 ## Flutter
 
diff --git a/src/release/release-notes/release-notes-3.3.0.md b/src/release/release-notes/release-notes-3.3.0.md
index 5d61261f7e..65a3405ea1 100644
--- a/src/release/release-notes/release-notes-3.3.0.md
+++ b/src/release/release-notes/release-notes-3.3.0.md
@@ -7,7 +7,7 @@ This page has release notes for 3.3.0.
 For information about subsequent bug-fix releases,
 see [Hotfixes to the Stable Channel][].
 
-[Hotfixes to the Stable Channel]: {{site.github}}/flutter/flutter/wiki/Hotfixes-to-the-Stable-Channel
+[Hotfixes to the Stable Channel]: {{site.repo.flutter}}/wiki/Hotfixes-to-the-Stable-Channel
 
 ## What's changed
 
diff --git a/src/release/release-notes/release-notes-3.7.0.md b/src/release/release-notes/release-notes-3.7.0.md
index b44bfa0eae..7079c5173d 100644
--- a/src/release/release-notes/release-notes-3.7.0.md
+++ b/src/release/release-notes/release-notes-3.7.0.md
@@ -7,7 +7,7 @@ This page has release notes for 3.7.0.
 For information about subsequent bug-fix releases,
 see [Hotfixes to the Stable Channel][].
 
-[Hotfixes to the Stable Channel]: {{site.github}}/flutter/flutter/wiki/Hotfixes-to-the-Stable-Channel
+[Hotfixes to the Stable Channel]: {{site.repo.flutter}}/wiki/Hotfixes-to-the-Stable-Channel
 
 ## What's changed
 
diff --git a/src/release/upgrade.md b/src/release/upgrade.md
index eabb58f88e..af2a595a94 100644
--- a/src/release/upgrade.md
+++ b/src/release/upgrade.md
@@ -246,6 +246,6 @@ $ flutter pub outdated
 [Flutter SDK archive]: {{site.url}}/release/archive
 [flutter-announce]: {{site.groups}}/forum/#!forum/flutter-announce
 [pubspec.yaml]: {{site.dart-site}}/tools/pub/pubspec
-[test registry]: https://github.com/flutter/tests
-[contribute to Flutter]: https://github.com/flutter/flutter/blob/main/CONTRIBUTING.md
+[test registry]: {{site.repo.organization}}/tests
+[contribute to Flutter]: {{site.repo.flutter}}/blob/main/CONTRIBUTING.md
 [migration guides]: {{site.url}}/release/breaking-changes
diff --git a/src/release/whats-new.md b/src/release/whats-new.md
index c2388ed56a..0f0cd3525d 100644
--- a/src/release/whats-new.md
+++ b/src/release/whats-new.md
@@ -8,6 +8,9 @@ tags: Flutter文档更新
 keywords: 内容归档
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 This page contains current and previous announcements of
 what's new on the Flutter website and blog.
 For details about what's new in the Flutter releases,
@@ -31,7 +34,7 @@ and review the [Dart changelog][].
 
 [release notes]: {{site.url}}/release/release-notes
 [flutter-announce]: {{site.groups}}/forum/#!forum/flutter-announce
-[Dart Announce]: https://groups.google.com/a/dartlang.org/g/announce
+[Dart Announce]: {{site.groups}}/a/dartlang.org/g/announce
 [Dart changelog]: {{site.github}}/dart-lang/sdk/blob/main/CHANGELOG.md
 
 ## 15 November 2023: 3.16 release
@@ -43,7 +46,7 @@ blog post.
 
 You might also check out [Dart 3.2 release][].
 
-**Docs updated or added since the 3.13 release**
+### Docs updated or added since the 3.13 release
 
 * As of this release, the **default theme for
   Material Flutter apps is Material 3**.
@@ -52,7 +55,7 @@ You might also check out [Dart 3.2 release][].
   in your app's theme, your app _will_ look
   different once you've updated.
 * While the Flutter Casual Games Toolkit isn't
-  technically _part_ of the 3.16 release, 
+  technically _part_ of the 3.16 release,
   we've release a significant update of
   the toolkit _alongside_ the 3.16 release.
   This update includes three completely new
@@ -71,7 +74,7 @@ You might also check out [Dart 3.2 release][].
   To learn more, check out
   [Adding iOS app extensions][ios-app-ext].
 
-**Articles**
+Articles**
 
 The following articles were published on the [Flutter Medium][]
 publication since Flutter 3.13:
@@ -99,19 +102,19 @@ publication since Flutter 3.13:
 Flutter 3.13 is live! For more information,
 check out the [Flutter 3.13 blog post][blog-general].
 
-You might also check out 
+You might also check out
 [Dart 3.1 & a retrospective on functional style programming in Dart 3][].
 
 In addition to new docs since the last release,
 we have been incrementally releasing a revamped
 version of the docs.flutter.dev website.
-Specifically, we have reorganized (flattened) the 
+Specifically, we have reorganized (flattened) the
 information architecture (IA) and have
 incorporated some of our most popular cookbook
 recipes into the sidenav.
 [Let us know what you think!][file-issue]
 
-**Docs updated or added since the 3.10 release**
+### Docs updated or added since the 3.10 release
 
 * A rewrite and rename that completes the
   [Use a native language debugger][oem] page.
@@ -154,7 +157,7 @@ The following codelab has been published since Flutter 3.10:
 
 [home-screen]:   {{site.codelabs}}/flutter-home-screen-widgets
 
-**Articles**
+Articles**
 
 The following articles were published on the [Flutter Medium][]
 publication since Flutter 3.10:
@@ -216,7 +219,7 @@ check out the [Flutter 3.13 blog post][blog-games].
 [blog-impeller]:  {{site.flutter-medium}}/whats-new-in-flutter-3-13-479d9b11df4d#a7be
 [blog-material]:  {{site.flutter-medium}}/whats-new-in-flutter-3-13-479d9b11df4d#4c90
 [blog-scrolling]: {{site.flutter-medium}}/whats-new-in-flutter-3-13-479d9b11df4d#02dc
-[Material 3]: https://m3.material.io/
+[Material 3]: {{site.material}}
 [Material Design for Flutter]: {{site.url}}/ui/design/material
 
 <hr>
@@ -234,7 +237,7 @@ You might also check out [Introducing Dart 3][].
 [3.10 release notes]: {{site.url}}/release/release-notes/release-notes-3.10.0
 [Introducing Dart 3]: {{site.medium}}/dartlang/announcing-dart-3-53f065a10635
 
-**Docs updated or added since the 3.7 release**
+### Docs updated or added since the 3.7 release
 
 * Added section on [wireless debugging][] for iOS or Android to the
   add-to-app module guide.
@@ -259,7 +262,7 @@ You might also check out [Introducing Dart 3][].
 * Added guide on [fonts and typography][].
 * Added guide on restoring state on [Android][] and [iOS][] Flutter apps.
 * Added a section about [sharing iOS and macOS plugin implementations][].
-* Added a guide on adapting the Material [alert dialog][], 
+* Added a guide on adapting the Material [alert dialog][],
   [top app bar and navigation bar][], and [bottom navigation bar][] widgets
   to the current platform as a start of UI component platform adaptation
   guidelines.
@@ -271,7 +274,6 @@ You might also check out [Introducing Dart 3][].
 [wireless debugging]: {{site.url}}/add-to-app/debugging
 [Material Widget Catalog]: {{site.url}}/ui/widgets/material
 [canvasKitVariant runtime configuration]: {{site.url}}/platform-integration/web/initialization#initializing-the-engine
-[Impeller]: {{site.url}}/perf/impeller
 [Android Java Gradle migration]: {{site.url}}/release/breaking-changes/android-java-gradle-migration-guide
 [DevTools]: {{site.url}}/tools/devtools/overview
 [WebAssembly support]: {{site.url}}/platform-integration/web/wasm
@@ -284,11 +286,10 @@ You might also check out [Introducing Dart 3][].
 [alert dialog]: {{site.url}}/platform-integration/platform-adaptations#alert-dialog
 [top app bar and navigation bar]: {{site.url}}/platform-integration/platform-adaptations#top-app-bar-and-navigation-bar
 [bottom navigation bar]: {{site.url}}/platform-integration/platform-adaptations#bottom-navigation-bars
-[some widgets]: {{site.url}}/platform-integration/platform-adaptations#ui-components
 [Anatomy of an app]: {{site.url}}/resources/architectural-overview#anatomy-of-an-app
 [SDK archive page]: {{site.url}}/release/archive
 
-**Codelabs**
+### Codelabs
 
 The following codelabs have been published since Flutter 3.7:
 
@@ -310,7 +311,7 @@ The following codelabs have been published since Flutter 3.7:
 [Records and Patterns in Dart 3]: {{site.codelabs}}/codelabs/dart-patterns-records
 [Create haikus about Google products with the PaLM API and Flutter]: {{site.codelabs}}/haiku-generator
 
-**Articles**
+Articles**
 
 The Flutter team published the following articles on the [Flutter Medium][]
 publication since Flutter 3.7:
@@ -336,7 +337,7 @@ and [Introducing Dart 3 alpha][].
 [Introducing Dart 3 alpha]: {{site.medium}}/dartlang/dart-3-alpha-f1458fb9d232
 [What's next for Flutter]: {{site.flutter-medium}}/whats-next-for-flutter-b94ce089f49c
 
-**Docs updated or added since the 3.3 release**
+### Docs updated or added since the 3.3 release
 
 * You can now pass configuration
   information to the engine in the `initializeEngine`
@@ -350,10 +351,10 @@ and [Introducing Dart 3 alpha][].
   [Internationalizing Flutter apps][] page
   is updated.
 * The DevTools memory debugging tool has been
-  completely overhauled and the corresponding 
+  completely overhauled and the corresponding
   page, [Using the memory view][], is rewritten.
 * This release includes numerous improvements to
-  Flutter's support for custom fragment shaders. 
+  Flutter's support for custom fragment shaders.
   For more information, see the new
   [Writing and using fragment shaders][] page.
 * Some security tools falsely report security
@@ -384,6 +385,7 @@ and [Introducing Dart 3 alpha][].
   information on our [Flutter GitHub wiki][Impeller].
 
 {% comment %}
+
 * Missing docs (xxx):
   * Frame analysis tab in Performance view - Kenzie
   * Menu bars (M3) - Greg Spencer
@@ -398,9 +400,9 @@ and [Introducing Dart 3 alpha][].
   * Global selection improvements - ChunHeng Tai (chtai)
   * magnification property (who owns this? - I asked Justin)
     No docs yet (other than API docs)
-    https://main-api.flutter.dev/flutter/material/TextField/magnifierConfiguration.html
+    <https://main-api.flutter.dev/flutter/material/TextField/magnifierConfiguration.html>
   * Implementing iOS PlatformView BackdropFilter. (Blur) - Leigha and Chris Yang
-    https://docs.google.com/document/d/1V7Jc_RGaknrBBPPBBKB8lT7f3PKhYr8sin35MSMFAf4/edit
+    <https://docs.google.com/document/d/1V7Jc_RGaknrBBPPBBKB8lT7f3PKhYr8sin35MSMFAf4/edit>
   * Memory management updates - Zach Anderson
   * toImageSync - new API for rendering improvement - Zach Anderson
     Nope, nothing available
@@ -414,7 +416,6 @@ and [Introducing Dart 3 alpha][].
 [Flutter concurrency for Swift developers]: {{site.url}}/get-started/flutter-for/dart-swift-concurrency
 [Flutter FAQ]: {{site.url}}/resources/faq
 [Flutter for SwiftUI developers]: {{site.url}}/get-started/flutter-for/swiftui-devs
-[Impeller]: {{site.github}}/flutter/flutter/wiki/Impeller
 [Internationalizing Flutter apps]: {{site.url}}/ui/accessibility-and-internationalization/internationalization
 [Introducing isolate background channels]: {{site.medium}}/flutter/introducing-background-isolate-channels-7a299609cad8
 [Learning Dart as a Swift developer]: {{site.dart-site}}/guides/language/coming-from/swift-to-dart
@@ -464,14 +465,14 @@ codelabs to support multiplatform.
 The [codelabs & workshops][] page is updated
 to reflect the latest available codelabs.
 
-[Add a user authentication flow to a Flutter app using FirebaseUI]: https://firebase.google.com/codelabs/firebase-auth-in-flutter-apps
+[Add a user authentication flow to a Flutter app using FirebaseUI]: {{site.firebase}}/codelabs/firebase-auth-in-flutter-apps
 [Building a game with Flutter and Flame]: {{site.codelabs}}/codelabs/flutter-flame-game
 [codelabs & workshops]: {{site.url}}/codelabs
-[Local development for your Flutter apps using the Firebase Emulator Suite]: https://firebase.google.com/codelabs/get-started-firebase-emulators-and-flutter
+[Local development for your Flutter apps using the Firebase Emulator Suite]: {{site.firebase}}/codelabs/get-started-firebase-emulators-and-flutter
 [Using FFI in a Flutter plugin]: {{site.codelabs}}/codelabs/flutter-ffigen
 [Your first Flutter app]: {{site.codelabs}}/codelabs/flutter-codelab-first
 
-**Articles**
+Articles**
 
 We've published the following articles on the [Flutter Medium][]
 publication since the last stable release:
@@ -489,7 +490,6 @@ publication since the last stable release:
 * [Supporting six platforms with two keyboards][]
 * [Studying developer's usage of IDEs for Flutter development][]
 
-
 [Announcing the Flutter News Toolkit]: {{site.flutter-medium}}/announcing-the-flutter-news-toolkit-180a0d32c012
 [Adapting Wonderous to larger device formats]: {{site.flutter-medium}}/adapting-wonderous-to-larger-device-formats-ac51e1c00bc0
 [How can we improve the Flutter experience for desktop?]: {{site.medium}}/flutter/how-can-we-improve-the-flutter-experience-for-desktop-70b34bff9392
@@ -510,11 +510,10 @@ and [Dart 2.18: Objective-C & Swift interop][] (free articles on Medium),
 and the [Flutter 3.3 release notes][3.3 release notes].
 
 [3.3 release notes]: {{site.url}}/release/release-notes/release-notes-3.3.0
-[Announcing Flutter 3.3 at Flutter Vikings]: {{site.medium}}/flutter/announcing-flutter-3-3-at-flutter-vikings-6f213e068793
 [Dart 2.18: Objective-C & Swift interop]: {{site.medium}}/dartlang/dart-2-18-f4b3101f146c
 [What's new in Flutter 3.3]: {{site.medium}}/flutter/whats-new-in-flutter-3-3-893c7b9af1ff
 
-**Docs updated or added since the 3.0 release**
+### Docs updated or added since the 3.0 release
 
 * The [navigation and routing overview][] page has been
   rewritten with more guidance on using `Navigator`
@@ -527,12 +526,12 @@ and the [Flutter 3.3 release notes][3.3 release notes].
   product versions in the pubspec file.
   For more information, see
   [Build and release a Windows desktop app][].
-* If you are developing software for iOS 16 and higher, 
+* If you are developing software for iOS 16 and higher,
   you must enable [Developer mode][].
   The [macOS install][] page is updated
   with this information.
 * As described in the [3.3 release notes][],
-  you should catch all errors and exceptions 
+  you should catch all errors and exceptions
   in your app by setting
   the `PlatformDispatcher.onError` callback,
   instead of using a custom `Zone`.
@@ -540,13 +539,12 @@ and the [Flutter 3.3 release notes][3.3 release notes].
   page has been updated with this advice.
 
 [Build and release a Windows desktop app]: {{site.url}}/deployment/windows
-[Developer mode]: https://developer.apple.com/documentation/xcode/enabling-developer-mode-on-a-device
+[Developer mode]: {{site.apple-dev}}/documentation/xcode/enabling-developer-mode-on-a-device
 [Handling errors in Flutter]: {{site.url}}/testing/errors
 [macOS install]: {{site.url}}/get-started/install/macos#install-xcode
 [navigation and routing overview]: {{site.url}}/ui/navigation
 [URL strategies]: {{site.url}}/ui/navigation/url-strategies
 
-
 ## 11 May 2022: Google I/O 2022: Flutter 3 release
 
 Flutter 3 is live!!! For more information, see
@@ -560,7 +558,7 @@ and the [Flutter 3 release notes][].
 [Introducing Flutter 3]: {{site.medium}}/flutter/introducing-flutter-3-5eb69151622f
 [What's new in Flutter 3]: {{site.medium}}/flutter/whats-new-in-flutter-3-8c74a5bc32d0
 
-**Docs updated or added since the 2.10 release**
+### Docs updated or added since the 2.10 release
 
 * We have launched the Casual Games Toolkit
   to help you build games with Flutter.
@@ -568,7 +566,7 @@ and the [Flutter 3 release notes][].
   [Games doc page][].
 * Are you struggling to level up as a Flutter
   developer? We have created the Happy paths
-  project to help. Learn more on the 
+  project to help. Learn more on the
   Happy paths page.
   (Note, this program has been discontinued
   in favor of the [Flutter Favorite Program][].)
@@ -601,11 +599,10 @@ and the [Flutter 3 release notes][].
   [Learning Dart as a JavaScript developer][js-to-dart].
   Stay tuned for similar articles on Swift and C#.
 
-[Customizing web app initialization]: {{site.url}}/platform-integration/web/initialization
 [dart-whats-new]: {{site.dart-site}}/guides/whats-new
 [dart.dev]: {{site.dart-site}}
 [Desktop]: {{site.url}}/platform-integration/desktop
-[Flutter Firebase get started guide]: https://firebase.google.com/docs/flutter/setup
+[Flutter Firebase get started guide]: {{site.firebase}}/docs/flutter/setup
 [Games page]: {{site.main-url}}/games
 [Games doc page]: {{site.url}}/resources/games-toolkit
 [js-to-dart]: {{site.dart-site}}/guides/language/coming-from/js-to-dart
@@ -617,7 +614,7 @@ We have a new codelab since the last stable release:
 
 * [Take your Flutter app from boring to beautiful][]
   Learn how to use features in Material 3 to make your
-  more beautiful *and* more responsive.
+  more beautiful _and_ more responsive.
 
 Also, check out the workshops written by our GDEs
 and available on the [Flutter community blog][].
@@ -644,7 +641,7 @@ For more information, see
 and [What's new in Flutter 2.10][],
 free articles on Medium.
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=640083866&bvid=BV1eY4y1s7wu&cid=556773536&page=1&autoplay=false" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=640083866&bvid=BV1eY4y1s7wu&cid=556773536&page=1&autoplay=false" title="了解 Flutter 如何开发 Windows 原生应用" {{bili-set}}></iframe>
 
 [Announcing Flutter for Windows]: {{site.flutter-medium}}/announcing-flutter-for-windows-6979d0d01fed
 [What's new in Flutter 2.10]: {{site.flutter-medium}}/whats-new-in-flutter-2-10-5aafb0314b12
@@ -670,11 +667,11 @@ repo to make it easier to use and maintain.
 If you contribute to this repo, see the [README][] file
 for more information.
 
-**Docs updated or added since the 2.2 release**
+### Docs updated or added since the 2.2 release
 
 * A new page on [Using Actions and Shortcuts][].
 
-**Articles**
+### Articles
 
 We've published the following articles on the [Flutter Medium][]
 publication since the last stable release:
@@ -685,10 +682,9 @@ publication since the last stable release:
 * [Flutter Hot Reload][]
 * [What can we do to better improve Flutter?][]
 * [Adding Flutter to your existing iOS and Android codebases][]
-* [Google I/O Spotlight: Flutter in action at ByteDance][] 
+* [Google I/O Spotlight: Flutter in action at ByteDance][]
 * [Improving Platform Channel Performance in Flutter][]
 
-
 [Adding Flutter to your existing iOS and Android codebases]: {{site.flutter-medium}}/adding-flutter-to-your-existing-ios-and-android-codebases-3e2c5a4797c1
 [What's new in Flutter 2.5]: {{site.flutter-medium}}/whats-new-in-flutter-2-5-6f080c3f3dc
 [Flutter Hot Reload]: {{site.flutter-medium}}/flutter-hot-reload-f3c5994e2cee
@@ -712,7 +708,7 @@ Flutter 2.2 is live! For details, see
 We continue migrating code on the website to use
 null safety, but that work is not yet completed.
 
-**Docs updated or added since the 2.0 release**
+### Docs updated or added since the 2.0 release
 
 * A new page on [Building adaptive apps][].
 * A new page describing how to use [Google APIs][]
@@ -726,10 +722,11 @@ null safety, but that work is not yet completed.
   Windows UWP.
 
 {% comment %}
-- migration guides (drag gestures and package:flutter_lints, depending)
+
+* migration guides (drag gestures and package:flutter_lints, depending)
 {% endcomment %}
 
-**Codelabs**
+### Codelabs
 
 New codelabs since the last stable release:
 
@@ -737,7 +734,7 @@ New codelabs since the last stable release:
 * [Build Voice Bots for Android with Dialogflow Essentials & Flutter][]
 * [Get to know Firebase for Flutter][]
 
-**Workshops**
+### Workshops
 
 For Google I/O 2021, we have added a new
 Flutter/Dart learning tool that
@@ -765,7 +762,7 @@ If you are interested, check out the following resources:
 
 [Google 2021 I/O Flutter]: https://events.google.com/io/program/content?4=topic_flutter
 
-**Articles**
+Articles**
 
 We've published the following articles on the [Flutter Medium][]
 publication since the last stable release:
@@ -777,28 +774,24 @@ publication since the last stable release:
 [Announcing Flutter 2.2]: {{site.flutter-medium}}/announcing-flutter-2-2-at-google-i-o-2021-92f0fcbd7ef9
 [Building adaptive apps]: {{site.url}}/ui/layout/responsive/building-adaptive-apps
 [Build Voice Bots for Android with Dialogflow Essentials & Flutter]: {{site.codelabs}}/codelabs/dialogflow-flutter
-[Building your first Flutter app]: https://www.bilibili.com/video/BV1n54y1H7dZ/
+[Building your first Flutter app]: {{bili-video}}/BV1n54y1H7dZ/
 [DartPad Sharing Guide (using a Gist file)]: {{site.github}}/dart-lang/dart-pad/wiki/Sharing-Guide
 [DartPad Workshop Authoring Guide]: {{site.github}}/dart-lang/dart-pad/wiki/Workshop-Authoring-Guide
 [Deferred components]: {{site.url}}/perf/deferred-components
-[desktop]: {{site.url}}/platform-integration/desktop
 [Embedded Support for Flutter]: {{site.url}}/embedded
 [Embedding DartPad in your web page]: {{site.github}}/dart-lang/dart-pad/wiki/Embedding-Guide
-[Firebase for Flutter]: https://www.bilibili.com/video/BV14b4y1o7Wn/
-[Flutter and Dialogflow voice bots]: https://www.bilibili.com/video/BV1pX4y1A7SH/
+[Firebase for Flutter]: {{bili-video}}/BV14b4y1o7Wn/
+[Flutter and Dialogflow voice bots]: {{bili-video}}/BV1pX4y1A7SH/
 [Get to know Firebase for Flutter]: {{site.firebase}}/codelabs/firebase-get-to-know-flutter#0
 [Google APIs]: {{site.url}}/data-and-backend/google-apis
-[Google I/O workshops page]: https://events.google.com/io/program/content?4=topic_flutter&5=type_workshop&lng=en
 [How It's Made: I/O Photo Booth]: {{site.flutter-medium}}/how-its-made-i-o-photo-booth-3b8355d35883
-[Inherited widgets]: https://www.bilibili.com/video/BV1Wv411W7yF/
-[Inherited widgets DartPad]: {{site.url}}/go/inheritedwidget-workshop
+[Inherited widgets]: {{bili-video}}/BV1Wv411W7yF/
 [Memory view page]: {{site.url}}/tools/devtools/memory
-[Null safety]: https://www.bilibili.com/video/BV1tK4y1u76N/
-[Slivers]: https://www.bilibili.com/video/BV11f4y187gV/
+[Null safety]: {{bili-video}}/BV1tK4y1u76N/
+[Slivers]: {{bili-video}}/BV11f4y187gV/
 [Q1 2021 survey]: {{site.flutter-medium}}/which-factors-affected-users-decisions-to-adopt-flutter-q1-2021-user-survey-results-563e61fc68c9
 [What's New in Flutter 2.2]: {{site.flutter-medium}}/whats-new-in-flutter-2-2-fd00c65e2039
 
-
 ---
 
 ## 03 Mar 2021: Flutter Engage: 2.0 release
@@ -809,7 +802,7 @@ Flutter 2 is live!!!  For more information, see
 [Announcing Dart 2.12][],
 and the [Flutter 2 release notes][].
 
-**Docs updated or added since the 1.22 release**
+### Docs updated or added since the 1.22 release
 
 * A new [Who is Dash?][] page!
 * Information about monetizing your apps has been
@@ -819,7 +812,7 @@ and the [Flutter 2 release notes][].
 * New and updated web pages, including:
   * [Web support for Flutter][]
   * [Configuring the URL strategy on the web][]
-  * [Web FAQ][] 
+  * [Web FAQ][]
 * The [Desktop support for Flutter][] page is updated,
   as well as other pages on the site that discuss
   desktop support.
@@ -843,7 +836,7 @@ and the [Flutter 2 release notes][].
   * [Performance faq][]
   * [More thoughts about performance][]
 
-**Codelabs**
+### Codelabs
 
 Many of our codelabs have been updated to null safety.
 We've also added a new codelab since the last stable release:
@@ -852,7 +845,7 @@ We've also added a new codelab since the last stable release:
 
 For a complete list, see [Flutter codelabs][].
 
-**Articles**
+Articles**
 
 We've published the following articles on the [Flutter Medium][]
 publication since the last stable release:
@@ -871,7 +864,6 @@ publication since the last stable release:
 * [Testable Flutter and Cloud Firestore][]
 * [Performance testing on the web][]
 
-
 [Accessible expression with Material Icons and Flutter]: {{site.flutter-medium}}/accessible-expression-with-material-icons-and-flutter-e3f3f622200b
 [Adding AdMob banner and native inline ads to a Flutter app]: {{site.codelabs}}/codelabs/admob-inline-ads-in-flutter
 [Adding a Flutter view to an Android app]: {{site.url}}/add-to-app/android/add-flutter-view
@@ -884,7 +876,6 @@ publication since the last stable release:
 [Dart sound null safety: technical preview 2]: {{site.flutter-medium}}/null-safety-flutter-tech-preview-cb5c98aba187
 [Deprecation Lifetime in Flutter]: {{site.flutter-medium}}/deprecation-lifetime-in-flutter-e4d76ee738ad
 [Desktop support for Flutter]: {{site.url}}/platform-integration/desktop
-[Devtools]: {{site.url}}/tools/devtools/overview
 [Flutter Ads]: {{site.main-url}}/monetization
 [Flutter 2 release notes]: {{site.url}}/release/release-notes/release-notes-2.0.0
 [Flutter Fix]: {{site.url}}/tools/flutter-fix
@@ -918,8 +909,7 @@ publication since the last stable release:
 Flutter 1.22 is live! For details, see
 [Announcing Flutter 1.22][].
 
-
-**Docs updated or added to flutter.dev since the 1.20 release**
+### Docs updated or added to flutter.dev since the 1.20 release
 
 * Updated the [Developing for iOS 14][] page with
   details about targeting iOS 14 with Flutter, including some
@@ -939,7 +929,7 @@ Flutter 1.22 is live! For details, see
 * Added a page that describes how to use the new
   [App Size tool][] in Dart DevTools.
 
-**Codelabs**
+### Codelabs
 
 We've added a new codelab since the last stable release:
 
@@ -950,7 +940,7 @@ We've added a new codelab since the last stable release:
 
 For a complete list, see [Flutter codelabs][].
 
-**Articles**
+Articles**
 
 We've published the following articles on the [Flutter Medium][]
 publication since the last stable release:
@@ -964,7 +954,6 @@ publication since the last stable release:
 * [Platform channel examples][]
 * [Updates on Flutter and Firebase][]
 
-
 [add an iOS App Clip]: {{site.url}}/platform-integration/ios/ios-app-clip
 [animations]: {{site.pub}}/packages/animations
 [Announcing Flutter 1.22]: {{site.flutter-medium}}/announcing-flutter-1-22-44f146009e5f
@@ -985,13 +974,12 @@ publication since the last stable release:
 [Updates on Flutter and Firebase]: {{site.flutter-medium}}/updates-on-flutter-and-firebase-8076f70bc90e
 [webview_flutter]: {{site.pub}}/packages/webview_flutter
 
-
 ## 05 Aug 2020: 1.20 release
 
 Flutter 1.20 is live! For details,
 see [Announcing Flutter 1.20][].
 
-**Docs updated or added to flutter.dev**
+### Docs updated or added to flutter.dev
 
 * [Flutter architectural overview][], a deep dive into Flutter's
   architecture, was added to the site just a few days after the
@@ -1012,7 +1000,7 @@ A deep dive into null safety has been added to dart.dev:
 
 * [Understanding null safety][]
 
-**Codelabs**
+### Codelabs
 
 [Flutter Day][] was held on 6/25/2020.
 In preparation for the event,
@@ -1027,34 +1015,33 @@ New codelabs include:
 
 For a complete list, see [Flutter codelabs][].
 
-**Articles**
+Articles**
 
 We've published the following articles on the [Flutter Medium][]
 publication since the last stable release:
 
-  * [Announcing Adobe XD support for Flutter][]
-  * [What are the important & difficult tasks for Flutter
+* [Announcing Adobe XD support for Flutter][]
+* [What are the important & difficult tasks for Flutter
      devs? - Q1 2020 survey results][q1-2020]
-  * [Optimizing performance in Flutter web apps with tree
+* [Optimizing performance in Flutter web apps with tree
      shaking and deferred loading][shaking]
-  * [Flutter Package Ecosystem Update][]
-  * [Improving perceived performance with image placeholders,
+* [Flutter Package Ecosystem Update][]
+* [Improving perceived performance with image placeholders,
      precaching, and disabled navigation transitions][web-perf]
-  * [Two Months of #FlutterGoodNewsWednesday][]
-  * [Handling 404: Page not found error in Flutter][]
-  * [Flutter and Desktop apps][]
-  * [What's new with the Slider widget?][]
-  * [New tools for Flutter developers, built in Flutter][dev-tools]
-  * [Canonical enables Linux desktop app support with
+* [Two Months of #FlutterGoodNewsWednesday][]
+* [Handling 404: Page not found error in Flutter][]
+* [Flutter and Desktop apps][]
+* [What's new with the Slider widget?][]
+* [New tools for Flutter developers, built in Flutter][dev-tools]
+* [Canonical enables Linux desktop app support with
      Flutter][ubuntu]
-  * [Enums with Extensions in Dart][]
-  * [Managing issues in a large-scale open source project][]
-  * [What we learned from the Flutter Q2 2020 survey][]
-  * [Building performant Flutter widgets][]
-  * [How to debug layout issues with the Flutter Inspector][]
-  * [Going deeper with Flutter's web support][]
-  * [Flutter Performance Updates in 2019][]
-
+* [Enums with Extensions in Dart][]
+* [Managing issues in a large-scale open source project][]
+* [What we learned from the Flutter Q2 2020 survey][]
+* [Building performant Flutter widgets][]
+* [How to debug layout issues with the Flutter Inspector][]
+* [Going deeper with Flutter's web support][]
+* [Flutter Performance Updates in 2019][]
 
 [Adding Admob Ads to a Flutter app]: {{site.codelabs}}/codelabs/admob-ads-in-flutter/
 [Announcing Adobe XD Support for Flutter]: {{site.flutter-medium}}/announcing-adobe-xd-support-for-flutter-4b3dd55ff40e
@@ -1126,7 +1113,6 @@ Docs added and updated since the last announcement include:
   [Managing plugins and dependencies in add-to-app][add2app]
   when developing for Android.
 
-
 Other newness:
 
 * We've published a number of articles on the [Flutter Medium][]
@@ -1156,7 +1142,6 @@ Other newness:
 [Announcing CodePen support for Flutter]: {{site.flutter-medium}}/announcing-codepen-support-for-flutter-bb346406fe50
 [Announcing Flutter 1.17]: {{site.flutter-medium}}/announcing-flutter-1-17-4182d8af7f8e
 [Custom implicit animations in Flutter…with TweenAnimationBuilder]: {{site.flutter-medium}}/custom-implicit-animations-in-flutter-with-tweenanimationbuilder-c76540b47185
-[Desktop]: {{site.url}}/platform-integration/desktop
 [Developing packages and plugins]: {{site.url}}/packages-and-plugins/developing-packages
 [Developing plugin packages]: {{site.url}}/packages-and-plugins/developing-packages#federated-plugins
 [Directional animations with build-in explicit animations]: {{site.flutter-medium}}/directional-animations-with-built-in-explicit-animations-3e7c5e6fbbd7
@@ -1178,7 +1163,6 @@ Other newness:
 [Supporting the new Android plugin APIs]: {{site.url}}/release/breaking-changes/plugin-api-migration
 [Understanding constraints]: {{site.url}}/ui/layout/constraints
 [When should I use AnimatedBuilder or AnimatedWidget?]: {{site.flutter-medium}}/when-should-i-useanimatedbuilder-or-animatedwidget-57ecae0959e8
-[Writing custom platform-specific code]: {{site.url}}/platform-integration/platform-channels
 
 ## 11 Dec 2019: Flutter Interact: 1.12 release
 
@@ -1222,7 +1206,7 @@ Docs added and updated since the last announcement include:
 
 Other newness:
 
-* A brand new version of [Flutter Gallery][]. There's a 
+* A brand new version of [Flutter Gallery][]. There's a
   link to the runnable sample in the side nav under
   **Samples & Tutorials**.
 
@@ -1232,7 +1216,6 @@ Happy Fluttering!
 [Announcing Flutter 1.12: What a year!]: {{site.flutter-medium}}/announcing-flutter-1-12-what-a-year-22c256ba525d
 [app size]: {{site.url}}/perf/app-size#ios
 [building a web app with Flutter]: {{site.url}}/platform-integration/web/building
-[Desktop support for Flutter]: {{site.url}}/platform-integration/desktop
 [Flutter: the first UI platform designed for ambient computing]: {{site.google-blog}}/2019/12/flutter-ui-ambient-computing.html?m=1
 [Flutter Favorite program]: {{site.url}}/packages-and-plugins/favorites
 [Flutter 1.12.13]: {{site.url}}/release/release-notes/release-notes-1.12.13
@@ -1241,7 +1224,6 @@ Happy Fluttering!
 [Flutter Medium publication]: {{site.medium}}/flutter
 [Migrating your plugin to the new Android APIs]: {{site.url}}/release/breaking-changes/plugin-api-migration
 [implicit animations]: {{site.url}}/codelabs/implicit-animations
-[Web support for Flutter]: {{site.url}}/platform-integration/web
 [Web support for Flutter goes beta]: {{site.flutter-medium}}/web-support-for-flutter-goes-beta-35b64a1217c0
 [write your first Flutter app on the web]: {{site.url}}/get-started/codelab-web
 [Get started]: {{site.url}}/get-started/install
@@ -1308,7 +1290,6 @@ Happy Fluttering!
 [`ColorFiltered`]: {{site.api}}/flutter/widgets/ColorFiltered-class.html
 [ColorFiltered demo]: {{site.github}}/csells/flutter_color_filter
 [creating responsive apps]: {{site.url}}/ui/layout/responsive/adaptive-responsive
-[Flutter Medium publication]: {{site.medium}}/flutter
 [Flutter for web]: {{site.url}}/platform-integration/web
 [Flutter news from GDD China: uniting Flutter on web and mobile, and introducing Flutter 1.9]: {{site.google-blog}}/2019/09/flutter-news-from-gdd-china-flutter1.9.html?m=1
 [Improving Flutter's Error Messages]: {{site.flutter-medium}}/improving-flutters-error-messages-e098513cecf9
@@ -1320,7 +1301,6 @@ Happy Fluttering!
 [ToggleButtons demo]: {{site.github}}/csells/flutter_toggle_buttons
 [Upgrading from package:flutter_web to the Flutter SDK]: {{site.repo.flutter}}/wiki/Upgrading-from-package:flutter_web-to-the-Flutter-SDK
 [using the dart:ffi library]: {{site.url}}/platform-integration/android/c-interop
-[web FAQ]: {{site.url}}/platform-integration/web/faq
 
 ## 09 Jul 2019: 1.7 release
 
@@ -1363,8 +1343,6 @@ component and how to customize it, see
 [Cookbook]: {{site.url}}/cookbook
 [Debugging]: {{site.url}}/testing/debugging
 [Debugging apps programmatically]: {{site.url}}/testing/code-debugging
-[DevTools]: {{site.url}}/tools/devtools
-[Flutter Medium Publication]: {{site.flutter-medium}}
 [Flutter's build modes]: {{site.url}}/testing/build-modes
 [Material RangeSlider in Flutter]: {{site.flutter-medium}}/material-range-slider-in-flutter-a285c6e3447d
 [Performance best practices]: {{site.url}}/perf/best-practices
@@ -1421,13 +1399,10 @@ If you have questions or comments about any of these docs,
 
 [Android Studio/IntelliJ]: {{site.url}}/tools/android-studio
 [different state management options]: {{site.url}}/data-and-backend/state-mgmt/options
-[download the release]: {{site.url}}/release/archive
 [ephemeral vs app state]: {{site.url}}/data-and-backend/state-mgmt/ephemeral-vs-app
 [file-issue]: {{site.repo.this}}/issues
 [introduction]: {{site.url}}/data-and-backend/state-mgmt/intro
-[Performance profiling]: {{site.url}}/perf/ui-performance
 [1.2.1 release notes]: {{site.url}}/release/release-notes/release-notes-1.2.1
-[simple app state management]: {{site.url}}/data-and-backend/state-mgmt/simple
 [state management advice]: {{site.url}}/data-and-backend/state-mgmt/intro
 [thinking declaratively]: {{site.url}}/data-and-backend/state-mgmt/declarative
 [this site]: {{site.url}}/tools/devtools
@@ -1435,7 +1410,6 @@ If you have questions or comments about any of these docs,
 [VS Code]: {{site.url}}/tools/vs-code
 [widget inspector]: {{site.url}}/tools/devtools/inspector
 
-
 [version 1.2]: {{site.google-blog}}/2019/02/launching-flutter-12-at-mobile-world.html
 
 ## 05 Nov 2018: new website
@@ -1472,9 +1446,7 @@ If you have questions or comments about the revamped site,
 [Background Dart processes]: {{site.url}}/packages-and-plugins/background-processes
 [community]: {{site.main-url}}/community
 [file an issue]: {{site.repo.this}}/issues
-[Flutter's build modes]: {{site.url}}/testing/build-modes
 [front]: {{site.url}}/
 [Inside Flutter]: {{site.url}}/resources/inside-flutter
-[showcase]: {{site.main-url}}/showcase
 [State management]: {{site.url}}/data-and-backend/state-mgmt
 [Technical videos]: {{site.url}}/resources/videos
diff --git a/src/resources/architectural-overview.md b/src/resources/architectural-overview.md
index 4957d64fed..d2f7720ee8 100644
--- a/src/resources/architectural-overview.md
+++ b/src/resources/architectural-overview.md
@@ -6,6 +6,9 @@ tags: Flutter参考资料
 keywords: Flutter原理,Flutter架构指南,Flutter分层设计
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 <?code-excerpt path-base="resources/architectural_overview/"?>
 
 This article is intended to provide a high-level overview of the architecture of
@@ -152,7 +155,7 @@ and compile toolchain.
 [Impeller]: {{site.url}}/perf/impeller
 
 The engine is exposed to the Flutter framework through
-[`dart:ui`]({{site.github}}/flutter/engine/tree/main/lib/ui),
+[`dart:ui`]({{site.repo.engine}}/tree/main/lib/ui),
 which wraps the underlying C++ code in Dart classes. This library
 exposes the lowest-level primitives, such as classes for driving input,
 graphics, and text rendering subsystems.
@@ -287,9 +290,9 @@ pieces of a Flutter app.
 
   由应用开发者进行管理。
 
-**Framework** ([source code]({{site.github}}/flutter/flutter/tree/main/packages/flutter/lib))
+**Framework** ([source code]({{site.repo.flutter}}/tree/main/packages/flutter/lib))
 
-**框架**（[源代码]({{site.github}}/flutter/flutter/tree/main/packages/flutter/lib)）
+**框架**（[源代码]({{site.repo.flutter}}/tree/main/packages/flutter/lib)）
 
 * Provides higher-level API to build high-quality apps
   (for example, widgets, hit-testing, gesture detection,
@@ -302,9 +305,9 @@ pieces of a Flutter app.
 
   将应用的 widget 树构建至一个 Scene 中。
 
-**Engine** ([source code]({{site.github}}/flutter/engine/tree/main/shell/common))
+**Engine** ([source code]({{site.repo.engine}}/tree/main/shell/common))
 
-**引擎**（[源代码]({{site.github}}/flutter/engine/tree/master/shell/common)）
+**引擎**（[源代码]({{site.repo.engine}}/tree/main/shell/common)）
 
 * Responsible for rasterizing composited scenes.
 
@@ -324,9 +327,9 @@ pieces of a Flutter app.
 
   使用 **嵌入层 API** 与平台进行整合。
 
-**Embedder** ([source code](https://github.com/flutter/engine/tree/main/shell/platform))
+**Embedder** ([source code]({{site.repo.engine}}/tree/main/shell/platform))
 
-**嵌入层**（[源代码]({{site.github}}/flutter/engine/tree/main/shell/platform)）
+**嵌入层**（[源代码]({{site.repo.engine}}/tree/main/shell/platform)）
 
 * Coordinates with the underlying operating system
   for access to services like rendering surfaces,
@@ -375,7 +378,7 @@ which includes a rethinking of many traditional design principles.
 ，其中包含了对传统设计理念的再度解构。
 
 [faq]: {{site.url}}/resources/faq#what-programming-paradigm-does-flutters-framework-use
-[fb]: {{site.youtube-site}}/watch?time_continue=2&v=x7cQ3mrcKaY&feature=emb_logo
+[fb]: {{yt-watch}}?time_continue=2&v=x7cQ3mrcKaY&feature=emb_logo
 
 In most traditional UI frameworks, the user interface's initial state is
 described once and then separately updated by user code at runtime, in response
@@ -1288,11 +1291,11 @@ GPU to render it.
 Further details of the composition and rasterization stages of the pipeline are
 beyond the scope of this high-level article, but more information can be found
 [in this talk on the Flutter rendering
-pipeline]({{site.youtube-site}}/watch?v=UUfXWzp0-DU).
+pipeline]({{yt-watch}}?v=UUfXWzp0-DU).
 
 有关渲染流程的合成和栅格化阶段的更多细节，将不在本篇深入文章中讨论，
 但可以在
-[关于 Flutter 渲染流程的讨论](https://www.bilibili.com/video/BV1Zx411o7tq/)
+[关于 Flutter 渲染流程的讨论]({{bili-video}}/BV1Zx411o7tq/)
 中了解更多。
 
 ## Platform embedding
@@ -1303,7 +1306,7 @@ itself. The mechanism for obtaining the texture and participating in the app
 lifecycle of the underlying operating system inevitably varies depending on the
 unique concerns of that platform. The engine is platform-agnostic, presenting a
 [stable ABI (Application Binary
-Interface)]({{site.github}}/flutter/engine/blob/main/shell/platform/embedder/embedder.h)
+Interface)]({{site.repo.engine}}/blob/main/shell/platform/embedder/embedder.h)
 that provides a _platform embedder_ with a way to set up and use Flutter.
 
 我们都知道，Flutter 的界面构建、布局、合成和绘制全都由 Flutter 自己完成，
@@ -1452,9 +1455,9 @@ channel.setMethodCallHandler {
 }
 ```
 
-Further examples of using platform channels, including examples for macOS, can
-be found in the [flutter/packages]({{site.repo.packages}})
-repository<sup><a href="#a3">3</a></sup>. There are also [thousands of plugins
+Further examples of using platform channels, including examples for desktop
+platforms, can be found in the [flutter/packages]({{site.repo.packages}})
+repository. There are also [thousands of plugins
 already available]({{site.pub}}/flutter) for Flutter that cover many common
 scenarios, ranging from Firebase to ads to device hardware like camera and
 Bluetooth.
@@ -1543,7 +1546,7 @@ Flutter solves this by introducing platform view widgets
 ([`AndroidView`]({{site.api}}/flutter/widgets/AndroidView-class.html)
 and [`UiKitView`]({{site.api}}/flutter/widgets/UiKitView-class.html))
 that let you embed this kind of content on each platform. Platform views can be
-integrated with other Flutter content<sup><a href="#a4">4</a></sup>. Each of
+integrated with other Flutter content<sup><a href="#a3">3</a></sup>. Each of
 these widgets acts as an intermediary to the underlying operating system. For
 example, on Android, `AndroidView` serves three primary functions:
 
@@ -1708,7 +1711,7 @@ While HTML mode offers the best code size characteristics,
 `CanvasKit` provides the fastest path to the
 browser's graphics stack,
 and offers somewhat higher graphical fidelity with the
-native mobile targets<sup><a href="#a5">5</a></sup>.
+native mobile targets<sup><a href="#a4">4</a></sup>.
 
 然而，使用 C++ 编写的 Flutter 引擎是为了与底层操作系统进行交互的，而不是 Web 浏览器。
 因此我们需要另辟蹊径。Flutter 在 Web 平台上以浏览器的标准 API 重新实现了引擎。
@@ -1793,25 +1796,15 @@ reading. In practice, the tree might be more complex.
 
 <sup><a id="a2">2</a></sup> 为了便于阅读，该图已进行简化。实际上的结构可能更为复杂。
 
-<sup><a id="a3">3</a></sup> While work is underway on Linux and Windows,
-examples for those platforms can be found in the [Flutter desktop embedding
-repository]({{site.github}}/google/flutter-desktop-embedding/tree/master/plugins).
-As development on those platforms reaches maturity, this content will be
-gradually migrated into the main Flutter repository.
-
-<sup><a id="a3">3</a></sup> 在 Linux 和 Windows 平台的开发进程中，平台对应的示例可以在
-[Flutter 桌面集成代码仓库]({{site.github}}/google/flutter-desktop-embedding/tree/master/plugins)
-中找到。随着这些平台的开发愈发成熟，这些内容会逐步迁移到 Flutter 主代码仓库中。
-
-<sup><a id="a4">4</a></sup> There are some limitations with this approach, for
+<sup><a id="a3">3</a></sup> There are some limitations with this approach, for
 example, transparency doesn't composite the same way for a platform view as it
 would for other Flutter widgets.
 
-<sup><a id="a4">4</a></sup> 该方法有一些局限性，例如，
+<sup><a id="a3">3</a></sup> 该方法有一些局限性，例如，
 平台视图的透明度计算与其他 Flutter widget 的计算不同。
 
-<sup><a id="a5">5</a></sup> One example is shadows, which have to be
+<sup><a id="a4">4</a></sup> One example is shadows, which have to be
 approximated with DOM-equivalent primitives at the cost of some fidelity.
 
-<sup><a id="a5">5</a></sup> 其中一个例子便是阴影，
+<sup><a id="a4">4</a></sup> 其中一个例子便是阴影，
 它必须以等效于 DOM 原语的内容来实现，并且需要丢失一定的保真度。
diff --git a/src/resources/courses.md b/src/resources/courses.md
index 1ddea88dcb..3005ce1200 100644
--- a/src/resources/courses.md
+++ b/src/resources/courses.md
@@ -3,6 +3,8 @@ title: Online courses
 description: An index of online courses teaching Flutter development.
 ---
 
+{% include docs/yt_shims.liquid %}
+
 Learn how to build Flutter apps with these video courses.
 Before signing up for a course, verify that it includes
 up-to-date information, such as null-safe Dart code.
@@ -24,9 +26,9 @@ To include your course, [submit a PR][]:
 [The Complete 2021 Flutter Development Bootcamp Using Dart]: https://www.appbrewery.co/p/flutter-development-bootcamp-with-dart/
 [Flutter Crash Course]: https://fluttercrashcourse.com/
 [Flutter leicht gemacht 2022 - Zero to Mastery!]: https://www.udemy.com/course/dart-flutter-leicht-gemacht/
-[Flutter Zero to Hero]: {{site.youtube-site}}/watch?v=lpvuM9lo3HU&list=PL1k5oWAuBhgXdw1BbxVGxxWRmkGB1C11l
+[Flutter Zero to Hero]: {{yt-playlist}}PL1k5oWAuBhgXdw1BbxVGxxWRmkGB1C11l
 [Flutter Bootcamp]: https://flutterbootcamp.com.br
-[Flutter para iniciantes]: {{site.youtube-site}}/playlist?list=PLS4cqF1_X2syzBpkoSwtmKoREgnp1MhTn
+[Flutter para iniciantes]: {{yt-playlist}}PLS4cqF1_X2syzBpkoSwtmKoREgnp1MhTn
 [Dart & Flutter - Zero to Mastery 2023 + Clean Architecture]: https://www.udemy.com/course/flutter-made-easy-zero-to-mastery/?referralCode=CCBFCD16CC71F359EE3C
 [Dart & Flutter - Zero to Mastery 2023 - Keiko Corp. Food Reviews App]: https://academy.zerotomastery.io/courses/2092303/lectures/47623876
 [Sticky Grouped Headers in Flutter]: https://academy.droidcon.com/course/sticky-grouped-headers-in-flutter
diff --git a/src/resources/games-toolkit.md b/src/resources/games-toolkit.md
index 2ece9ba798..6c4aafa1e2 100644
--- a/src/resources/games-toolkit.md
+++ b/src/resources/games-toolkit.md
@@ -74,7 +74,7 @@ The Casual Games Toolkit provides the following free resources.
   1. A sample game built on top of the endless runner template,
      called SuperDash. You can play the game on iOS, Android,
      or [web][], [view the open source code repo][], or 
-     [read how the game was created in 6 days][].
+     [read how the game was created in 6 weeks][].
 
 * Developer guides for integrating needed services.
 * A link to a [Flame Discord][game-discord] channel.
@@ -156,7 +156,7 @@ built with Flutter and Flame include
 ## Other resources
 
 Once you feel ready to go beyond these games templates,
-investigate other resources that our community recommends.
+investigate other resources that our community recommended.
 
 {% assign pkg-icon = '<span class="material-symbols-outlined">package_2</span>' %}
 {% assign doc-icon = '<span class="material-symbols-outlined">quick_reference_all</span>' %}
@@ -305,8 +305,9 @@ investigate other resources that our community recommends.
 <td markdown="1">
 
 {{recipe-icon}} [Add advertising to your Flutter game][ads-recipe]<br>
-{{codelab}} [Add AdMob ads to a Flutter app][]<br>
-{{codelab}} [Add in-app purchases to your Flutter app][iap-recipe]
+{{codelab}}  [Add AdMob ads to a Flutter app][]<br>
+{{codelab}}  [Add in-app purchases to your Flutter app][iap-recipe]<br>
+{{doc-icon}} [Gaming UX and Revenue Optimizations for Apps][] (PDF)
 
 </td>
 </tr>
@@ -353,7 +354,7 @@ investigate other resources that our community recommends.
 [I/O Pinball Powered by Flutter and Firebase]: {{site.medium}}/flutter/di-o-pinball-powered-by-flutter-and-firebase-d22423f3f5d
 [install Flutter]: {{site.url}}/get-started/install
 [Tomb Toad]: https://play.google.com/store/apps/details?id=com.crescentmoongames.tombtoad
-[basic-template-readme]: {{games-gh}}/tree/main/templates/basic/README.md
+[basic-template-readme]: {{games-gh}}/blob/main/templates/basic/README.md
 [basic-template]: {{games-gh}}/tree/main/templates/basic
 [card-template-readme]: {{games-gh}}/blob/main/templates/card/README.md
 [card-template]: {{games-gh}}/tree/main/templates/card
@@ -383,6 +384,7 @@ investigate other resources that our community recommends.
 [Add Firebase to your Flutter game]: {{site.firebase}}/docs/flutter/setup
 [GIMP]: https://www.gimp.org
 [Game Developer Studio]: https://www.gamedeveloperstudio.com
+[Gaming UX and Revenue Optimizations for Apps]: {{site.main-url}}/go/games-revenue
 [Paint API]: {{site.api}}/flutter/dart-ui/Paint-class.html
 [Special effects]: {{site.url}}/cookbook/effects
 [Spriter Pro]: https://store.steampowered.com/app/332360/Spriter_Pro/
@@ -397,7 +399,7 @@ investigate other resources that our community recommends.
 [spriteWidget]: {{site.pub-pkg}}/spritewidget
 [sqflite]: {{site.pub-pkg}}/sqflite
 [win32_gamepad]: {{site.pub-pkg}}/win32_gamepad
-[read how the game was created in 6 days]: {{site.flutter-medium}}/how-we-built-the-new-super-dash-demo-in-flutter-and-flame-in-just-six-weeks-9c7aa2a5ad31
+[read how the game was created in 6 weeks]: {{site.flutter-medium}}/how-we-built-the-new-super-dash-demo-in-flutter-and-flame-in-just-six-weeks-9c7aa2a5ad31
 [view the open source code repo]: {{site.github}}/flutter/super_dash
 [web]: https://superdash.flutter.dev/
 
diff --git a/src/resources/news-toolkit.md b/src/resources/news-toolkit.md
index c11becaeb1..23bfa40955 100644
--- a/src/resources/news-toolkit.md
+++ b/src/resources/news-toolkit.md
@@ -3,6 +3,8 @@ title: Flutter News Toolkit
 description: Learn more about creating a newsfeed app in Flutter.
 ---
 
+{% include docs/yt_shims.liquid %}
+
 The Flutter News Toolkit enables you to accelerate
 development of a mobile news app.
 The toolkit assists you in building a customized
@@ -55,5 +57,5 @@ You might also check out:
 
 [toolkit]: https://flutter.github.io/news_toolkit/
 [blog]: {{site.flutter-medium}}/announcing-the-flutter-news-toolkit-180a0d32c012
-[video]: {{site.youtube-site}}/watch?v=dukRAS-OUMM
-[file an issue]: {{site.github}}/flutter/flutter/issues
+[video]: {{yt-watch}}?v=dukRAS-OUMM
+[file an issue]: {{site.repo.flutter}}/issues
diff --git a/src/resources/videos.md b/src/resources/videos.md
index 17119cb083..a376e78140 100644
--- a/src/resources/videos.md
+++ b/src/resources/videos.md
@@ -8,6 +8,9 @@ tags: Flutter参考资料
 keywords: Flutter视频资料,Flutter学习,Flutter社区视频
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 These Flutter videos, produced both internally
 at Google and by the Flutter community,
 might help if you are a visual learner.
@@ -37,7 +40,7 @@ event, you can enjoy the content created for Flutter Forward!
 
 即使您无法前往内罗毕参加现场活动，你也可以享受为 Flutter Forward 创建的内容！
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/zKQYGKAe5W8?start=2778" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/zKQYGKAe5W8?start=2778" title="Watch the livestream from Flutter Forward in Nairobi Kenya from 2023" {{yt-set}}></iframe>
 
 Flutter Forward livestream<br>
 [Flutter Forward playlist][]
@@ -45,7 +48,7 @@ Flutter Forward livestream<br>
 Flutter Forward 直播回放<br>
 [Flutter Forward 视频列表][Flutter Forward playlist]
 
-[Flutter Forward playlist]: https://www.youtube.com/playlist?list=PLjxrf2q8roU3LvrdR8Hv_phLrTj0xmjnD
+[Flutter Forward playlist]: {{yt-playlist}}PLjxrf2q8roU3LvrdR8Hv_phLrTj0xmjnD
 
 ### Get ready for Flutter Forward
 
@@ -62,7 +65,7 @@ Flutter 团队在活动开始前提供了 17 天的 Flutter 活动。
 Flutter Forward 相关的视频请查阅 Flutter 社区的 bilibili 频道
 [合集](https://space.bilibili.com/344928717/channel/collectiondetail?sid=1052446&ctype=0)。
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/hpgkrUPRBjc?start=6" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/hpgkrUPRBjc?start=6" title="Watch the videos to prepare you for Flutter Forward 2023" {{yt-set}}></iframe>
 
 17 Days of Flutter!<br>
 [Get ready for Flutter Forward playlist][]
@@ -70,7 +73,7 @@ Flutter Forward 相关的视频请查阅 Flutter 社区的 bilibili 频道
 17 天的 Flutter 日程<br>
 [准备好迎接 Flutter Forward][Get ready for Flutter Forward playlist]
 
-[Get ready for Flutter Forward playlist]: {{site.youtube-site}}/playlist?list=PLjxrf2q8roU3PUEaM4yYXqvFMEwOluBNl
+[Get ready for Flutter Forward playlist]: {{yt-playlist}}PLjxrf2q8roU3PUEaM4yYXqvFMEwOluBNl
 
 ### Learning to Fly
 
@@ -89,18 +92,18 @@ Flutter Forward 相关的视频请查阅 Flutter 社区的 bilibili 频道
 
 {{site.alert.end}}
 
-[Season 2]: {{site.youtube-site}}/watch?v=ILTx1Wa33Z0
+[Season 2]: {{yt-watch}}?v=ILTx1Wa33Z0
 
 Follow along with Khanh's journey as she learns Flutter.
 From ideation down to the moments of confusion,
-learn alongside her as she asks important questions like: 
+learn alongside her as she asks important questions like:
 "What is the best way to build out a theme? How to approach using fonts?"
 And more!
 
 跟随 Khanh 一起学习 Flutter，在她从构思到困惑的时候，与她一起提出并学习问题：
 「构建主题的最佳方法是什么？如何使用字体？」以及更多其他问题！
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/CkcvVZZEsJE" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/CkcvVZZEsJE" title="Learn how to build your first Flutter app" {{yt-set}}></iframe>
 
 Building my first Flutter app | Learning to Fly<br>
 [Learning to Fly playlist][]
@@ -108,7 +111,7 @@ Building my first Flutter app | Learning to Fly<br>
 构建我的第一个 Flutter 应用 | Learning to Fly<br>
 [Learning to Fly 视频列表][Learning to Fly playlist]
 
-[Learning to Fly playlist]: {{site.youtube-site}}/playlist?list=PLjxrf2q8roU3X18pAQWLyCJaa79RpqWnn
+[Learning to Fly playlist]: {{yt-playlist}}PLjxrf2q8roU3X18pAQWLyCJaa79RpqWnn
 
 Here are some of the series offered on the
 [flutterdev YouTube channel][].
@@ -134,14 +137,14 @@ you can submit suggestions future episodes.
 该视频系列重点介绍有关充分利用 Flutter 的提示、技巧、最佳实践和其他的建议。
 你可以在评论区提交对后续内容的想法。
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/QIW35-vcA2o" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/QIW35-vcA2o" title="Watch this series on best practices for Flutter: Decoding Flutter" {{yt-set}}></iframe>
 
 Introducing Decoding Flutter
 [Decoding Flutter playlist][]
 
 [解构 Flutter 系列视频][Decoding Flutter playlist]
 
-[Decoding Flutter playlist]: {{site.youtube-site}}/playlist?list=PLjxrf2q8roU1fRV40Ec8200rX6OuQkmnl
+[Decoding Flutter playlist]: {{yt-playlist}}PLjxrf2q8roU1fRV40Ec8200rX6OuQkmnl
 
 ### Flutter widget of the week
 
@@ -152,7 +155,7 @@ Each one-minute video highlights a Flutter widget.
 
 每周一分钟，为你种草一个 Flutter widget！
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?bvid=BV15441157cc&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?bvid=BV15441157cc&page=1&autoplay=false" title="Watch this series on different Flutter Widgets: Widget of the Week" {{bili-set}}></iframe>
 
 Introducing widget of the week<br>
 [Flutter widget of the week playlist][]
@@ -160,7 +163,7 @@ Introducing widget of the week<br>
 每周 Flutter Widgets 介绍<br>
 [每周 Flutter Widgets 视频列表][Flutter widget of the week playlist]
 
-[Flutter widget of the week playlist]: {{site.youtube-site}}/playlist?list=PLjxrf2q8roU23XGwz3Km7sQZFTdB996iG
+[Flutter widget of the week playlist]: {{yt-playlist}}PLjxrf2q8roU23XGwz3Km7sQZFTdB996iG
 
 ### Flutter package of the week
 
@@ -171,7 +174,7 @@ each of these videos highlights a Flutter package.
 
 这些视频会为你介绍一些精选 Flutter package。
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/QFcFEpFmNJ8" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/QFcFEpFmNJ8" title="Watch this series on different Flutter Packages: Package of the Week" {{yt-set}}></iframe>
 
 `flutter_slidable` package
 [Flutter package of the week playlist][]
@@ -179,7 +182,7 @@ each of these videos highlights a Flutter package.
 `flutter_slidable` package 介绍<br>
 [每周 Flutter Packages 视频列表][Flutter package of the week playlist]
 
-[Flutter package of the week playlist]: {{site.youtube-site}}/playlist?list=PLjxrf2q8roU1quF6ny8oFHJ2gBdrYN_AK
+[Flutter package of the week playlist]: {{yt-playlist}}PLjxrf2q8roU1quF6ny8oFHJ2gBdrYN_AK
 
 ### The Boring Flutter show
 
@@ -192,7 +195,7 @@ unscripted and in real time. Mistakes, solutions
 该系列以 Flutter 程序员 0 剧本、现场写代码为特色。
 视频中包含了一些代码错误和解决方案。
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=55815727&bvid=BV18441157SS&cid=97573460&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=55815727&bvid=BV18441157SS&cid=97573460&page=1&autoplay=false" title="Watch this live Flutter coding series: The Boring Show" {{bili-set}}></iframe>
 
 Introducing the Boring Flutter show<br>
 [The Boring Flutter show playlist][]
@@ -200,7 +203,7 @@ Introducing the Boring Flutter show<br>
 The Boring Flutter Show 视频播放列表介绍<br>
 [无聊的 Flutter 表演视频列表][The Boring Flutter show playlist]
 
-[The Boring Flutter show playlist]: {{site.youtube-site}}/playlist?list=PLjxrf2q8roU3ahJVrSgAnPjzkpGmL9Czl
+[The Boring Flutter show playlist]: {{yt-playlist}}PLjxrf2q8roU3ahJVrSgAnPjzkpGmL9Czl
 
 ### Flutter at Google I/O 2022
 
@@ -211,13 +214,13 @@ the great Flutter content!
 
 Google I/O 2022 已经结束，但你仍然可以观看精彩的 Flutter 内容！
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/w_ezWG1yKQQ" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/w_ezWG1yKQQ" title="Watch highlights about Flutter from Google I/O 2022" {{yt-set}}></iframe>
 
 [Flutter at Google I/O playlist][]
 
 [Google I/O 中的 Flutter 视频列表][Flutter at Google I/O playlist]
 
-[Flutter at Google I/O playlist]: {{site.youtube-site}}/playlist?list=PLjxrf2q8roU1kHjuHoFGBLCxjy4h2WOcP
+[Flutter at Google I/O playlist]: {{yt-playlist}}PLjxrf2q8roU1kHjuHoFGBLCxjy4h2WOcP
 
 ### Flutter Engage 2021
 
@@ -229,17 +232,17 @@ officially launched Flutter 2.
 
 [Flutter Engage 2021]: https://events.flutter.dev/
 
-Check out the Flutter Engage 2021 highlights reel:
+Check out the Flutter Engage 2021 highlights reel.
 
 查看 Flutter Engage 2021 精彩片段：
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/IdrCyS7EF8M" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/IdrCyS7EF8M" title="Watch highlights about Flutter from Flutter Engage 2021" {{yt-set}}></iframe>
 
-Watch recordings of the sessions on the Flutter YouTube channel:
+Watch recordings of the sessions on the Flutter YouTube channel.
 
 在 Flutter YouTube 频道上观看会议录像：
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/zSbsIiluixw" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/zSbsIiluixw" title="Watch the Flutter sessions from Flutter Engage 2021" {{yt-set}}></iframe>
 
 Keynote<br>
 [Flutter Engage 2021 playlist][]
@@ -247,18 +250,18 @@ Keynote<br>
 会议主旨内容<br>
 [Flutter Engage 2021 视频列表][Flutter Engage 2021 playlist]
 
-Watch recordings of the sessions offered by the Flutter community:
+Watch recordings of the sessions offered by the Flutter community.
 
-观看 Flutter 社区提供的会议录像：
+观看 Flutter 社区提供的会议录像。
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/-_de6IfY2RU" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/-_de6IfY2RU" title="Watch the Flutter community sessions from Flutter Engage 2021" {{yt-set}}></iframe>
 
 [Flutter Engage community talks playlist][]
 
 [Flutter Engage 社区演讲视频列表][Flutter Engage community talks playlist]
 
-[Flutter Engage 2021 playlist]: {{site.youtube-site}}/playlist?list=PLjxrf2q8roU21cXt24HLm-ZODXmr4Jw0C
-[Flutter Engage community talks playlist]: {{site.youtube-site}}/playlist?list=PLjxrf2q8roU1ln3WoiGTUvLr7ZrPPFvXv
+[Flutter Engage 2021 playlist]: {{yt-playlist}}PLjxrf2q8roU21cXt24HLm-ZODXmr4Jw0C
+[Flutter Engage community talks playlist]: {{yt-playlist}}PLjxrf2q8roU1ln3WoiGTUvLr7ZrPPFvXv
 
 ### Flutter in focus
 
@@ -268,7 +271,7 @@ Five-to-ten minute tutorials (more or less) on using Flutter.
 
 有关使用 Flutter 的五到十分钟的系列教程。
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/wgTBLj7rMPM" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/wgTBLj7rMPM" title="Watch this series on Flutter tutorials: Flutter in Focus" {{yt-set}}></iframe>
 
 Introducing Flutter in focus<br>
 [Flutter in focus playlist][]
@@ -276,7 +279,7 @@ Introducing Flutter in focus<br>
 关注 Flutter 系列介绍<br>
 [关注 Flutter 视频列表][Flutter in focus playlist]
 
-[Flutter in focus playlist]: {{site.youtube-site}}/playlist?list=PLjxrf2q8roU2HdJQDjJzOeO6J3FoFLWr2
+[Flutter in focus playlist]: {{yt-playlist}}PLjxrf2q8roU2HdJQDjJzOeO6J3FoFLWr2
 
 ## Conference talks
 
@@ -286,13 +289,13 @@ Here are a some Flutter talks given at various conferences.
 
 以下是各种会议上的一些 Flutter 会谈。
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=55833267&cid=97603337&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=55833267&cid=97603337&page=1&autoplay=false" title="Watch this series on Flutter talks given at other conferences" {{bili-set}}></iframe>
 
 [Conference talks playlist][]
 
 [会议演讲视频列表][Conference talks playlist]
 
-[Conference talks playlist]: {{site.youtube-site}}/playlist?list=PLjxrf2q8roU1UJ0OEpANodVMVm1GeE7Ti
+[Conference talks playlist]: {{yt-playlist}}PLjxrf2q8roU1UJ0OEpANodVMVm1GeE7Ti
 
 ## Flutter developer stories
 
@@ -305,10 +308,10 @@ millions of downloads.
 视频展示了艾比路工作室 (Abbey Road Studio)、汉密尔顿 (Hamilton) 和阿里巴巴 (Alibaba)
 等开发者 / 公司如何使用 Flutter 开发出百万级别下载量，引人注目的应用程序。
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=55812033&cid=97567456&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=55812033&cid=97567456&page=1&autoplay=false" title="Watch this series on Flutter developer stories" {{bili-set}}></iframe>
 
 [Flutter developer stories playlist][]
 
 [Flutter 开发者成功故事][Flutter developer stories playlist]
 
-[Flutter developer stories playlist]: {{site.youtube-site}}/playlist?list=PLjxrf2q8roU33POuWi4bK0zvDpAHK6759
+[Flutter developer stories playlist]: {{yt-playlist}}PLjxrf2q8roU33POuWi4bK0zvDpAHK6759
diff --git a/src/security/index.md b/src/security/index.md
index 0d7a24da61..6eb807ae17 100644
--- a/src/security/index.md
+++ b/src/security/index.md
@@ -58,7 +58,7 @@ in public that could put users at risk,
 For more details on how we handle security vulnerabilities,
 see our [security policy][].
 
-[Discord chat channels]: {{site.github}}/flutter/flutter/wiki/Chat
+[Discord chat channels]: {{site.repo.flutter}}/wiki/Chat
 [known false positives]: {{site.url}}/reference/security-false-positives
 [security policy]: {{site.repo.flutter}}/security/policy
 
@@ -94,7 +94,7 @@ The best way to receive security updates is to subscribe to the
 technical release blog post.
 
 [Discord channel]: https://discord.gg/BS8KZyg
-[flutter-announce]: https://groups.google.com/forum/#!forum/flutter-announce)
+[flutter-announce]: {{site.groups}}/forum/#!forum/flutter-announce
 
 ## Best practices
 
diff --git a/src/testing/code-debugging.md b/src/testing/code-debugging.md
index 9563a81e2d..221032340d 100644
--- a/src/testing/code-debugging.md
+++ b/src/testing/code-debugging.md
@@ -1,6 +1,6 @@
 ---
-title: Debugging Flutter apps programmatically
-title: 添加输出代码的方式调试 Flutter 应用
+title: Debug Flutter apps from code
+title: 通过输出代码的方式调试 Flutter 应用
 description: How to enable various debugging tools from your code and at the command line.
 description: 如何通过在代码中加入 log 输出。
 tags: Flutter测试
@@ -9,73 +9,49 @@ keywords: Flutter调试,Flutter加log,Flutter输出
 
 <?code-excerpt path-base="testing/code_debugging"?>
 
-This doc describes debugging features that you can enable in code.
-For a full list of debugging and profiling tools, see the
+This guide describes which debugging features you can enable in your code.
+For a full list of debugging and profiling tools, check out the
 [Debugging][] page.
 
-这篇文章描述了如何在代码中启用调试功能。
-如果想了解整个调试和分析工具，可参见 [Debugging][] 页面.
-
 {{site.alert.note}}
-
   If you are looking for a way to use GDB to remotely debug the
   Flutter engine running within an Android app process,
   check out [`flutter_gdb`][].
-
-  如果你想要使用 GDB 来远程调试运行在 Android 应用进程中的 Flutter 引擎，
-  可以参考文档 [`flutter_gdb`][]。
-
 {{site.alert.end}}
 
-[`flutter_gdb`]: https://github.com/flutter/engine/blob/main/sky/tools/flutter_gdb
-
-## Logging
+[`flutter_gdb`]: {{site.repo.engine}}/blob/main/sky/tools/flutter_gdb
 
-## 日志输出
+## Add logging to your application
 
 {{site.alert.note}}
-
   You can view logs in DevTools' [Logging view][]
   or in your system console. This sections
   shows how to set up your logging statements.
-
-  您可以在 DevTools 的 [Logging view][] 或系统控制台查看日志。 
-  本节将展示如何设置日志的相关语句。
-
 {{site.alert.end}}
 
 You have two options for logging for your application.
-The first is to use `stdout` and `stderr`.
-Generally, this is done using `print()` statements,
-or by importing `dart:io` and invoking methods on
-`stderr` and `stdout`. For example:
-
-在应用中有两种日志输出方式。第一种方式是使用 `stdout` 和 `stderr`。
-通常，我们使用 `print()` 语句或者通过引入 `dart:io` 
-并且调用 `stderr` 与 `stdout` 中的方法。如下：
 
-<?code-excerpt "lib/main.dart (stderr)"?>
-```dart
-stderr.writeln('print me');
-```
+1. Print to `stdout` and `stderr` using `print()` statements.
+1. Import `dart:io` and invoking methods on
+   `stderr` and `stdout`. For example:
 
-If you output too much at once, then Android sometimes
-discards some log lines. To avoid this, use [`debugPrint()`][],
-from Flutter's `foundation` library. This is a wrapper around `print`
-that throttles the output to a level that avoids being dropped by
-Android's kernel.
+    <?code-excerpt "lib/main.dart (stderr)"?>
+    ```dart
+    stderr.writeln('print me');
+    ```
 
-如果您一次输出太多，Android 有时可能会丢失一些日志行。
-可以使用 Flutter 的 `foundation` 包中的 [`debugPrint()`][] 方法来避免这个问题。
-它封装了 `print` 方法，通过控制输出的等级，从而避免输出内容被 Android 的内核丢弃。
+If you output too much at once, then Android might discard some log lines.
+To avoid this outcome,
+use [`debugPrint()`][] from Flutter's `foundation` library.
+This wrapper around `print` throttles the output to avoid the Android kernel
+dropping output.
 
-The other option for application logging is to use the
-`dart:developer` [`log()`][] function. This allows you to include a
-bit more granularity and information in the logging output.
-Here's an example:
+You can also log your app using the `dart:developer` [`log()`][] function.
+This allows you to include greater granularity and more information
+in the logging output.
 
-另一种应用日志输出的方式是使用 `dart:developer` 中的 [`log()`][] 方法。
-通过这种方式，您可以在输出日志中包含更精细化的信息。如下面这个示例：
+### Example 1
+{:.no_toc}
 
 <?code-excerpt "lib/main.dart (log)"?>
 ```dart
@@ -89,15 +65,14 @@ void main() {
 }
 ```
 
-You can also pass application data to the log call.
+You can also pass app data to the log call.
 The convention for this is to use the `error:` named
 parameter on the `log()` call, JSON encode the object
 you want to send, and pass the encoded string to the
 error parameter.
 
-您也可以在打印日志时传入应用数据。
-通常，在调用 `log()` 时也会使用命名参数 `error:`，
-您可以通过 JSON 编码想要传入的对象，并将编码后的字符串传给 error 参数。
+### Example 2
+{:.no_toc}
 
 <?code-excerpt "lib/app_data.dart (PassAppData)"?>
 ```dart
@@ -115,43 +90,26 @@ void main() {
 }
 ```
 
-If viewing the logging output in DevTool's logging view,
-the JSON encoded error param is interpreted as a data object
-and rendered in the details view for that log entry.
-
-如果在 DevTool 的 logging 页面中查看日志输出情况，
-JSON 编码的错误参数会被解释为一个数据对象，并呈现在该日志条目的 details 视图中。
+DevTool's logging view interprets the JSON encoded error parameter
+as a data object.
+DevTool renders in the details view for that log entry.
 
-## Setting breakpoints
+## Set breakpoints
 
-## 设置断点
-
-{{site.alert.note}}
-
-  You can set breakpoints in DevTools' [Debugger][], or
-  in the built-in debugger of your IDE. If you want to
-  set breakpoints programmatically, use the following
-  instructions.
-
-  您可以在 DevTools 的 [Debugger][] 页面或在 IDE 的内置调试器中设置断点。
-  如果您想要以编程方式设置断点，可以使用下面的指令。
-
-{{site.alert.end}}
+You can set breakpoints in DevTools' [Debugger][] or
+in the built-in debugger of your IDE.
 
-You can insert programmatic breakpoints using the
-`debugger()` statement. To use this, you have to
-import the `dart:developer` package at the top of
-the relevant file.
+To set programmatic breakpoints:
 
-您可以使用 `debugger()` 语句插入编程式断点。在此之前，
-您需要在相关文件顶部引入 `dart:developer` 包。
+1. Import the `dart:developer` package into the relevant file.
+1. Insert programmatic breakpoints using the `debugger()` statement.
+   This statement takes an optional `when` argument.
+   This boolean argument sets a break when the given condition resolves to true.
 
-The `debugger()` statement takes an optional `when`
-argument that you can specify to only break when a
-certain condition is true, as in the following example:
+   **Example 3** illustrates this.
 
-`debugger()` 语句有一个可选参数 `when`，
-用来指定该断点触发的特定条件，如下这个示例：
+### Example 3
+{:.no_toc}
 
 <?code-excerpt "lib/debugger.dart"?>
 ```dart
@@ -163,48 +121,123 @@ void someFunction(double offset) {
 }
 ```
 
-## Debug flags: application layers
+## Debug app layers using flags
 
-## Debug 标识： 应用程序层
+Each layer of the Flutter framework provides a function to dump its
+current state or events to the console using the `debugPrint` property.
 
-{% comment %}  DevTool's doesn't currently print the render tree.
 {{site.alert.note}}
+  All of the following examples were run as macOS native apps on
+  a MacBook Pro M1. These will differ from any dumps your
+  development machine prints.
+{{site.alert.end}}
 
-  If you use [DevTools][] and its [Flutter inspector][] to
-  view a visual layout of the render tree, you probably won't
-  need to use these text-based dump tools.
+{% include docs/admonitions/tip-hashCode-tree.md %}
 
-  如果您使用 [DevTools][] 和它的 [Flutter inspector][] 来查看渲染树的可视布局，
-  可能不需要使用这些基于文本的转储工具。
+### Print the widget tree
 
-{{site.alert.end}}
-{% endcomment %}
+To dump the state of the Widgets library,
+call the [`debugDumpApp()`][] function.
 
-Each layer of the Flutter framework provides a function to dump its
-current state or events to the console (using `debugPrint`).
+1. Open your source file.
+1. Import `package:flutter/rendering.dart`.
+1. Call the [`debugDumpApp()`][] function from within the `runApp()` function.
+   You need your app in debug mode.
+   You cannot call this function inside a `build()` method
+   when the app is building.
+1. If you haven't started your app, debug it using your IDE.
+1. If you have started your app, save your source file.
+   Hot reload re-renders your app.
+
+#### Example 4: Call `debugDumpApp()`
+{:.no_toc}
+
+<?code-excerpt "lib/dump_app.dart"?>
+```dart
+import 'package:flutter/material.dart';
+
+void main() {
+  runApp(
+    const MaterialApp(
+      home: AppHome(),
+    ),
+  );
+}
+
+class AppHome extends StatelessWidget {
+  const AppHome({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Material(
+      child: Center(
+        child: TextButton(
+          onPressed: () {
+            debugDumpApp();
+          },
+          child: const Text('Dump Widget Tree'),
+        ),
+      ),
+    );
+  }
+}
+```
 
-Flutter 框架的每个 layer 都提供了一个函数，
-用来将其当前状态或事件转储到控制台（使用 `debugPrint`）。
+This function recursively calls the `toStringDeep()` method starting with
+the root of the widget tree. It returns a "flattened" tree.
 
-### Widget tree
+**Example 4** produces the following widget tree. It includes:
 
-### Widget 树
+* All the widgets projected through their various build functions.
+* Many widgets that don't appear in your app's source.
+  The framework's widgets' build functions insert them during the build.
 
-To dump the state of the Widgets library, call [`debugDumpApp()`][].
-You can call this more or less any time that the application is not in
-the middle of running a build phase (in other words, not anywhere inside a
-`build()` method), if the app has built at least once and is in debug mode
-(in other words, any time after calling `runApp()`).
+  The following tree, for example, shows [`_InkFeatures`][].
+  That class implements part of the [`Material`][] widget.
+  It doesn't appear anywhere in the code in **Example 4**.
 
-可以通过调用 [`debugDumpApp()`][] 方法转储 widget 库的状态，
-如果应用已至少构建了一次，并且正处于调试模式时（`runApp()` 调用后的任何时间）。
-只要应用不在运行构建阶段，您可以调用随意该方法（也就是说，不能在 `build()` 方法中使用它）。
+<details markdown="1">
+<summary><strong>Expand to view the widget tree for Example 4</strong></summary>
 
-For example, the following application:
+{% include_relative trees/widget-tree.md -%}
 
-如下面这个应用：
+</details>
 
-<?code-excerpt "lib/dump_app.dart"?>
+When the button changes from being pressed to being released,
+this invokes the `debugDumpApp()` function.
+It also coincides with the [`TextButton`][] object calling [`setState()`][]
+and thus marking itself dirty.
+This explains why a Flutter marks a specific object as "dirty".
+When you review the widget tree, look for a line that resembles the following:
+
+```nocode
+└TextButton(dirty, dependencies: [MediaQuery, _InheritedTheme, _LocalizationsScope-[GlobalKey#5880d]], state: _ButtonStyleState#ab76e)
+```
+
+If you write your own widgets, override the
+[`debugFillProperties()`][widget-fill] method to add information.
+Add [DiagnosticsProperty][] objects to the method's argument
+and call the superclass method.
+The `toString` method uses this function to fill in the widget's description.
+
+### Print the render tree
+
+When debugging a layout issue, the Widgets layer's tree might lack detail.
+The next level of debugging might require a render tree.
+To dump the render tree:
+
+1. Open your source file.
+1. Call the [`debugDumpRenderTree()`][] function.
+   You can call this any time except during a layout or paint phase.
+   Consider calling it from a [frame callback][] or an event handler.
+1. If you haven't started your app, debug it using your IDE.
+1. If you have started your app, save your source file.
+   Hot reload re-renders your app.
+
+#### Example 5: Call `debugDumpRenderTree()`
+{:.no_toc}
+
+<?code-excerpt "lib/dump_render_tree.dart"?>
 ```dart
 import 'package:flutter/material.dart';
 
@@ -225,9 +258,9 @@ class AppHome extends StatelessWidget {
       child: Center(
         child: TextButton(
           onPressed: () {
-            debugDumpApp();
+            debugDumpRenderTree();
           },
-          child: const Text('Dump App'),
+          child: const Text('Dump Render Tree'),
         ),
       ),
     );
@@ -235,754 +268,308 @@ class AppHome extends StatelessWidget {
 }
 ```
 
-The previous app outputs something like the following
-(the precise details vary by the version of the framework,
-the size of the device, and so forth):
+When debugging layout issues, look at the `size` and `constraints` fields.
+The constraints flow down the tree and the sizes flow back up.
 
-上面应用的输出内容如下（具体细节因框架版本、设备大小等会有所差异）：
+<details markdown="1">
+<summary><strong>Expand to view the render tree for Example 5</strong></summary>
 
-```
-I/flutter ( 6559): WidgetsFlutterBinding - CHECKED MODE
-I/flutter ( 6559): RenderObjectToWidgetAdapter<RenderBox>([GlobalObjectKey RenderView(497039273)]; renderObject: RenderView)
-I/flutter ( 6559): └MaterialApp(state: _MaterialAppState(1009803148))
-I/flutter ( 6559):  └ScrollConfiguration()
-I/flutter ( 6559):   └AnimatedTheme(duration: 200ms; state: _AnimatedThemeState(543295893; ticker inactive; ThemeDataTween(ThemeData(Brightness.light Color(0xff2196f3) etc...) → null)))
-I/flutter ( 6559):    └Theme(ThemeData(Brightness.light Color(0xff2196f3) etc...))
-I/flutter ( 6559):     └WidgetsApp([GlobalObjectKey _MaterialAppState(1009803148)]; state: _WidgetsAppState(552902158))
-I/flutter ( 6559):      └CheckedModeBanner()
-I/flutter ( 6559):       └Banner()
-I/flutter ( 6559):        └CustomPaint(renderObject: RenderCustomPaint)
-I/flutter ( 6559):         └DefaultTextStyle(inherit: true; color: Color(0xd0ff0000); family: "monospace"; size: 48.0; weight: 900; decoration: double Color(0xffffff00) TextDecoration.underline)
-I/flutter ( 6559):          └MediaQuery(MediaQueryData(size: Size(411.4, 683.4), devicePixelRatio: 2.625, textScaleFactor: 1.0, padding: EdgeInsets(0.0, 24.0, 0.0, 0.0)))
-I/flutter ( 6559):           └LocaleQuery(null)
-I/flutter ( 6559):            └Title(color: Color(0xff2196f3))
-I/flutter ( 6559):             └Navigator([GlobalObjectKey<NavigatorState> _WidgetsAppState(552902158)]; state: NavigatorState(240327618; tracking 1 ticker))
-I/flutter ( 6559):              └Listener(listeners: down, up, cancel; behavior: defer-to-child; renderObject: RenderPointerListener)
-I/flutter ( 6559):               └AbsorbPointer(renderObject: RenderAbsorbPointer)
-I/flutter ( 6559):                └Focus([GlobalKey 489139594]; state: _FocusState(739584448))
-I/flutter ( 6559):                 └Semantics(container: true; renderObject: RenderSemanticsAnnotations)
-I/flutter ( 6559):                  └_FocusScope(this scope has focus; focused subscope: [GlobalObjectKey MaterialPageRoute<void>(875520219)])
-I/flutter ( 6559):                   └Overlay([GlobalKey 199833992]; state: OverlayState(619367313; entries: [OverlayEntry@248818791(opaque: false; maintainState: false), OverlayEntry@837336156(opaque: false; maintainState: true)]))
-I/flutter ( 6559):                    └_Theatre(renderObject: _RenderTheatre)
-I/flutter ( 6559):                     └Stack(renderObject: RenderStack)
-I/flutter ( 6559):                      ├_OverlayEntry([GlobalKey 612888877]; state: _OverlayEntryState(739137453))
-I/flutter ( 6559):                      │└IgnorePointer(ignoring: false; renderObject: RenderIgnorePointer)
-I/flutter ( 6559):                      │ └ModalBarrier()
-I/flutter ( 6559):                      │  └Semantics(container: true; renderObject: RenderSemanticsAnnotations)
-I/flutter ( 6559):                      │   └GestureDetector()
-I/flutter ( 6559):                      │    └RawGestureDetector(state: RawGestureDetectorState(39068508; gestures: tap; behavior: opaque))
-I/flutter ( 6559):                      │     └_GestureSemantics(renderObject: RenderSemanticsGestureHandler)
-I/flutter ( 6559):                      │      └Listener(listeners: down; behavior: opaque; renderObject: RenderPointerListener)
-I/flutter ( 6559):                      │       └ConstrainedBox(BoxConstraints(biggest); renderObject: RenderConstrainedBox)
-I/flutter ( 6559):                      └_OverlayEntry([GlobalKey 727622716]; state: _OverlayEntryState(279971240))
-I/flutter ( 6559):                       └_ModalScope([GlobalKey 816151164]; state: _ModalScopeState(875510645))
-I/flutter ( 6559):                        └Focus([GlobalObjectKey MaterialPageRoute<void>(875520219)]; state: _FocusState(331487674))
-I/flutter ( 6559):                         └Semantics(container: true; renderObject: RenderSemanticsAnnotations)
-I/flutter ( 6559):                          └_FocusScope(this scope has focus)
-I/flutter ( 6559):                           └Offstage(offstage: false; renderObject: RenderOffstage)
-I/flutter ( 6559):                            └IgnorePointer(ignoring: false; renderObject: RenderIgnorePointer)
-I/flutter ( 6559):                             └_MountainViewPageTransition(animation: AnimationController(⏭ 1.000; paused; for MaterialPageRoute<void>(/))➩ProxyAnimation➩Cubic(0.40, 0.00, 0.20, 1.00)➩Tween<Offset>(Offset(0.0, 1.0) → Offset(0.0, 0.0))➩Offset(0.0, 0.0); state: _AnimatedState(552160732))
-I/flutter ( 6559):                              └SlideTransition(animation: AnimationController(⏭ 1.000; paused; for MaterialPageRoute<void>(/))➩ProxyAnimation➩Cubic(0.40, 0.00, 0.20, 1.00)➩Tween<Offset>(Offset(0.0, 1.0) → Offset(0.0, 0.0))➩Offset(0.0, 0.0); state: _AnimatedState(714726495))
-I/flutter ( 6559):                               └FractionalTranslation(renderObject: RenderFractionalTranslation)
-I/flutter ( 6559):                                └RepaintBoundary(renderObject: RenderRepaintBoundary)
-I/flutter ( 6559):                                 └PageStorage([GlobalKey 619728754])
-I/flutter ( 6559):                                  └_ModalScopeStatus(active)
-I/flutter ( 6559):                                   └AppHome()
-I/flutter ( 6559):                                    └Material(MaterialType.canvas; elevation: 0; state: _MaterialState(780114997))
-I/flutter ( 6559):                                     └AnimatedContainer(duration: 200ms; has background; state: _AnimatedContainerState(616063822; ticker inactive; has background))
-I/flutter ( 6559):                                      └Container(bg: BoxDecoration())
-I/flutter ( 6559):                                       └DecoratedBox(renderObject: RenderDecoratedBox)
-I/flutter ( 6559):                                        └Container(bg: BoxDecoration(backgroundColor: Color(0xfffafafa)))
-I/flutter ( 6559):                                         └DecoratedBox(renderObject: RenderDecoratedBox)
-I/flutter ( 6559):                                          └NotificationListener<LayoutChangedNotification>()
-I/flutter ( 6559):                                           └_InkFeature([GlobalKey ink renderer]; renderObject: _RenderInkFeatures)
-I/flutter ( 6559):                                            └AnimatedDefaultTextStyle(duration: 200ms; inherit: false; color: Color(0xdd000000); family: "Roboto"; size: 14.0; weight: 400; baseline: alphabetic; state: _AnimatedDefaultTextStyleState(427742350; ticker inactive))
-I/flutter ( 6559):                                             └DefaultTextStyle(inherit: false; color: Color(0xdd000000); family: "Roboto"; size: 14.0; weight: 400; baseline: alphabetic)
-I/flutter ( 6559):                                              └Center(alignment: Alignment.center; renderObject: RenderPositionedBox)
-I/flutter ( 6559):                                               └TextButton()
-I/flutter ( 6559):                                                └MaterialButton(state: _MaterialButtonState(398724090))
-I/flutter ( 6559):                                                 └ConstrainedBox(BoxConstraints(88.0<=w<=Infinity, h=36.0); renderObject: RenderConstrainedBox relayoutBoundary=up1)
-I/flutter ( 6559):                                                  └AnimatedDefaultTextStyle(duration: 200ms; inherit: false; color: Color(0xdd000000); family: "Roboto"; size: 14.0; weight: 500; baseline: alphabetic; state: _AnimatedDefaultTextStyleState(315134664; ticker inactive))
-I/flutter ( 6559):                                                   └DefaultTextStyle(inherit: false; color: Color(0xdd000000); family: "Roboto"; size: 14.0; weight: 500; baseline: alphabetic)
-I/flutter ( 6559):                                                    └IconTheme(color: Color(0xdd000000))
-I/flutter ( 6559):                                                     └InkWell(state: _InkResponseState<InkResponse>(369160267))
-I/flutter ( 6559):                                                      └GestureDetector()
-I/flutter ( 6559):                                                       └RawGestureDetector(state: RawGestureDetectorState(175370983; gestures: tap; behavior: opaque))
-I/flutter ( 6559):                                                        └_GestureSemantics(renderObject: RenderSemanticsGestureHandler relayoutBoundary=up2)
-I/flutter ( 6559):                                                         └Listener(listeners: down; behavior: opaque; renderObject: RenderPointerListener relayoutBoundary=up3)
-I/flutter ( 6559):                                                          └Container(padding: EdgeInsets(16.0, 0.0, 16.0, 0.0))
-I/flutter ( 6559):                                                           └Padding(renderObject: RenderPadding relayoutBoundary=up4)
-I/flutter ( 6559):                                                            └Center(alignment: Alignment.center; widthFactor: 1.0; renderObject: RenderPositionedBox relayoutBoundary=up5)
-I/flutter ( 6559):                                                             └Text("Dump App")
-I/flutter ( 6559):                                                              └RichText(renderObject: RenderParagraph relayoutBoundary=up6)
-```
+{% include_relative trees/render-tree.md -%}
 
-This is the "flattened" tree, showing all the widgets projected
-through their various build functions. (This is the tree you obtain if
-you call `toStringDeep()` on the root of the widget tree.)
-You'll see a lot of widgets in there that don't appear in your
-application's source, because they are inserted by the framework's
-widgets' build functions. For example,
-[`InkFeature`][] is an implementation detail of the [`Material`][] widget.
-
-这是一个「被拉平的树」，通过它们的各种 build 函数，显示出所有 widget 信息。
-（如果您调用根 widget 的 `toStringDeep()` 方法，就会得到这棵树。）
-您会看到很多 widget ，虽然它们没出现在应用的源码中，但却出现在这颗树中，
-因为它们是由框架中 widget 的 build 函数插入的。
-比如，[`Material`][] widget 的实现细节中就包括了 [`InkFeature`][]。
-
-Since the `debugDumpApp()` call is invoked when the button changes
-from being pressed to being released, it coincides with the
-[`TextButton`][] object calling [`setState()`][]
-and thus marking itself dirty. That is why, when you look at the dump you
-should see that specific object marked as "dirty". You can also see what
-gesture listeners have been registered; in this case, a single
-GestureDetector is listed, and it is listening only to a "tap" gesture
-("tap" is the output of a `TapGestureDetector`'s `toStringShort`
-function).
-
-当按钮被点击响应时，`debugDumpApp()` 方法被调用，
-由于该方法与 [`TextButton`][] 对象调用 [`setState()`][] 相一致，
-因此 TextButton 对应的元素会被标记为 dirty。
-这就是为什么在查看转储信息时，您会看到被标记为「dirty」的特定对象。
-您也可以看到已经被注册的手势监听器；在这个案例中，列出了一个 GestureDetector，
-它只监听「tap」手势（这里「tap」是 `TapGestureDetector` 的 `toStringShort` 函数输出的）。
-
-If you write your own widgets, you can add information by overriding
-[`debugFillProperties()`][widget-fill]. Add [DiagnosticsProperty][]
-objects to the method's argument, and call the superclass method.
-This function is what the `toString` method uses to fill in the
-widget's description.
-
-对于您自定义的 widget，可以通过重写 [`debugFillProperties()`][widget-fill] 方法添加信息。
-为方法中的参数添加 [DiagnosticsProperty][] 对象，并调用父类方法。
-该方法在 widget 调用 `toString` 方法时会被填充到其描述信息中。
-
-### Render tree
-
-### Render 树
-
-If you are trying to debug a layout issue, then the Widgets layer's
-tree might be insufficiently detailed. In that case, you can dump the
-rendering tree by calling [`debugDumpRenderTree()`][].
-As with `debugDumpApp()`, you can call this more or less any time
-except during a layout or paint phase. As a general rule,
-calling it from a [frame callback][]
-or an event handler is the best solution.
-
-如果您试图调试一个布局问题，那么 Widget 层的树可能不够详细。
-在这种情况下，您可以通过调用 [`debugDumpRenderTree()`][] 转储 Render 树信息。
-和 `debugDumpApp()` 一样，除了在布局或绘制阶段，可以在任何时候调用它。
-一般来说，最好在 [frame callback][] 或事件处理中调用它。
-
-To call `debugDumpRenderTree()`, you need to add `import
-'package:flutter/rendering.dart';` to your source file.
-
-想要调用 `debugDumpRenderTree()` 方法，您需要在源码文件中添加 
-`import 'package:flutter/rendering.dart';`。
-
-The output for the previous tiny example would look something like
-the following:
-
-前面的小案例输出结构如下所示：
+</details>
 
-```
-I/flutter ( 6559): RenderView
-I/flutter ( 6559):  │ debug mode enabled - android
-I/flutter ( 6559):  │ window size: Size(1080.0, 1794.0) (in physical pixels)
-I/flutter ( 6559):  │ device pixel ratio: 2.625 (physical pixels per logical pixel)
-I/flutter ( 6559):  │ configuration: Size(411.4, 683.4) at 2.625x (in logical pixels)
-I/flutter ( 6559):  │
-I/flutter ( 6559):  └─child: RenderCustomPaint
-I/flutter ( 6559):    │ creator: CustomPaint ← Banner ← CheckedModeBanner ←
-I/flutter ( 6559):    │   WidgetsApp-[GlobalObjectKey _MaterialAppState(1009803148)] ←
-I/flutter ( 6559):    │   Theme ← AnimatedTheme ← ScrollConfiguration ← MaterialApp ←
-I/flutter ( 6559):    │   [root]
-I/flutter ( 6559):    │ parentData: <none>
-I/flutter ( 6559):    │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):    │ size: Size(411.4, 683.4)
-I/flutter ( 6559):    │
-I/flutter ( 6559):    └─child: RenderPointerListener
-I/flutter ( 6559):      │ creator: Listener ← Navigator-[GlobalObjectKey<NavigatorState>
-I/flutter ( 6559):      │   _WidgetsAppState(552902158)] ← Title ← LocaleQuery ← MediaQuery
-I/flutter ( 6559):      │   ← DefaultTextStyle ← CustomPaint ← Banner ← CheckedModeBanner ←
-I/flutter ( 6559):      │   WidgetsApp-[GlobalObjectKey _MaterialAppState(1009803148)] ←
-I/flutter ( 6559):      │   Theme ← AnimatedTheme ← ⋯
-I/flutter ( 6559):      │ parentData: <none>
-I/flutter ( 6559):      │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):      │ size: Size(411.4, 683.4)
-I/flutter ( 6559):      │ behavior: defer-to-child
-I/flutter ( 6559):      │ listeners: down, up, cancel
-I/flutter ( 6559):      │
-I/flutter ( 6559):      └─child: RenderAbsorbPointer
-I/flutter ( 6559):        │ creator: AbsorbPointer ← Listener ←
-I/flutter ( 6559):        │   Navigator-[GlobalObjectKey<NavigatorState>
-I/flutter ( 6559):        │   _WidgetsAppState(552902158)] ← Title ← LocaleQuery ← MediaQuery
-I/flutter ( 6559):        │   ← DefaultTextStyle ← CustomPaint ← Banner ← CheckedModeBanner ←
-I/flutter ( 6559):        │   WidgetsApp-[GlobalObjectKey _MaterialAppState(1009803148)] ←
-I/flutter ( 6559):        │   Theme ← ⋯
-I/flutter ( 6559):        │ parentData: <none>
-I/flutter ( 6559):        │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):        │ size: Size(411.4, 683.4)
-I/flutter ( 6559):        │ absorbing: false
-I/flutter ( 6559):        │
-I/flutter ( 6559):        └─child: RenderSemanticsAnnotations
-I/flutter ( 6559):          │ creator: Semantics ← Focus-[GlobalKey 489139594] ← AbsorbPointer
-I/flutter ( 6559):          │   ← Listener ← Navigator-[GlobalObjectKey<NavigatorState>
-I/flutter ( 6559):          │   _WidgetsAppState(552902158)] ← Title ← LocaleQuery ← MediaQuery
-I/flutter ( 6559):          │   ← DefaultTextStyle ← CustomPaint ← Banner ← CheckedModeBanner ←
-I/flutter ( 6559):          │   ⋯
-I/flutter ( 6559):          │ parentData: <none>
-I/flutter ( 6559):          │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):          │ size: Size(411.4, 683.4)
-I/flutter ( 6559):          │
-I/flutter ( 6559):          └─child: _RenderTheatre
-I/flutter ( 6559):            │ creator: _Theatre ← Overlay-[GlobalKey 199833992] ← _FocusScope ←
-I/flutter ( 6559):            │   Semantics ← Focus-[GlobalKey 489139594] ← AbsorbPointer ←
-I/flutter ( 6559):            │   Listener ← Navigator-[GlobalObjectKey<NavigatorState>
-I/flutter ( 6559):            │   _WidgetsAppState(552902158)] ← Title ← LocaleQuery ← MediaQuery
-I/flutter ( 6559):            │   ← DefaultTextStyle ← ⋯
-I/flutter ( 6559):            │ parentData: <none>
-I/flutter ( 6559):            │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            │
-I/flutter ( 6559):            ├─onstage: RenderStack
-I/flutter ( 6559):            ╎ │ creator: Stack ← _Theatre ← Overlay-[GlobalKey 199833992] ←
-I/flutter ( 6559):            ╎ │   _FocusScope ← Semantics ← Focus-[GlobalKey 489139594] ←
-I/flutter ( 6559):            ╎ │   AbsorbPointer ← Listener ←
-I/flutter ( 6559):            ╎ │   Navigator-[GlobalObjectKey<NavigatorState>
-I/flutter ( 6559):            ╎ │   _WidgetsAppState(552902158)] ← Title ← LocaleQuery ← MediaQuery
-I/flutter ( 6559):            ╎ │   ← ⋯
-I/flutter ( 6559):            ╎ │ parentData: not positioned; offset=Offset(0.0, 0.0)
-I/flutter ( 6559):            ╎ │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎ │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎ │
-I/flutter ( 6559):            ╎ ├─child 1: RenderIgnorePointer
-I/flutter ( 6559):            ╎ │ │ creator: IgnorePointer ← _OverlayEntry-[GlobalKey 612888877] ←
-I/flutter ( 6559):            ╎ │ │   Stack ← _Theatre ← Overlay-[GlobalKey 199833992] ← _FocusScope
-I/flutter ( 6559):            ╎ │ │   ← Semantics ← Focus-[GlobalKey 489139594] ← AbsorbPointer ←
-I/flutter ( 6559):            ╎ │ │   Listener ← Navigator-[GlobalObjectKey<NavigatorState>
-I/flutter ( 6559):            ╎ │ │   _WidgetsAppState(552902158)] ← Title ← ⋯
-I/flutter ( 6559):            ╎ │ │ parentData: not positioned; offset=Offset(0.0, 0.0)
-I/flutter ( 6559):            ╎ │ │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎ │ │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎ │ │ ignoring: false
-I/flutter ( 6559):            ╎ │ │ ignoringSemantics: implicitly false
-I/flutter ( 6559):            ╎ │ │
-I/flutter ( 6559):            ╎ │ └─child: RenderSemanticsAnnotations
-I/flutter ( 6559):            ╎ │   │ creator: Semantics ← ModalBarrier ← IgnorePointer ←
-I/flutter ( 6559):            ╎ │   │   _OverlayEntry-[GlobalKey 612888877] ← Stack ← _Theatre ←
-I/flutter ( 6559):            ╎ │   │   Overlay-[GlobalKey 199833992] ← _FocusScope ← Semantics ←
-I/flutter ( 6559):            ╎ │   │   Focus-[GlobalKey 489139594] ← AbsorbPointer ← Listener ← ⋯
-I/flutter ( 6559):            ╎ │   │ parentData: <none>
-I/flutter ( 6559):            ╎ │   │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎ │   │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎ │   │
-I/flutter ( 6559):            ╎ │   └─child: RenderSemanticsGestureHandler
-I/flutter ( 6559):            ╎ │     │ creator: _GestureSemantics ← RawGestureDetector ← GestureDetector
-I/flutter ( 6559):            ╎ │     │   ← Semantics ← ModalBarrier ← IgnorePointer ←
-I/flutter ( 6559):            ╎ │     │   _OverlayEntry-[GlobalKey 612888877] ← Stack ← _Theatre ←
-I/flutter ( 6559):            ╎ │     │   Overlay-[GlobalKey 199833992] ← _FocusScope ← Semantics ← ⋯
-I/flutter ( 6559):            ╎ │     │ parentData: <none>
-I/flutter ( 6559):            ╎ │     │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎ │     │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎ │     │
-I/flutter ( 6559):            ╎ │     └─child: RenderPointerListener
-I/flutter ( 6559):            ╎ │       │ creator: Listener ← _GestureSemantics ← RawGestureDetector ←
-I/flutter ( 6559):            ╎ │       │   GestureDetector ← Semantics ← ModalBarrier ← IgnorePointer ←
-I/flutter ( 6559):            ╎ │       │   _OverlayEntry-[GlobalKey 612888877] ← Stack ← _Theatre ←
-I/flutter ( 6559):            ╎ │       │   Overlay-[GlobalKey 199833992] ← _FocusScope ← ⋯
-I/flutter ( 6559):            ╎ │       │ parentData: <none>
-I/flutter ( 6559):            ╎ │       │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎ │       │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎ │       │ behavior: opaque
-I/flutter ( 6559):            ╎ │       │ listeners: down
-I/flutter ( 6559):            ╎ │       │
-I/flutter ( 6559):            ╎ │       └─child: RenderConstrainedBox
-I/flutter ( 6559):            ╎ │           creator: ConstrainedBox ← Listener ← _GestureSemantics ←
-I/flutter ( 6559):            ╎ │             RawGestureDetector ← GestureDetector ← Semantics ← ModalBarrier
-I/flutter ( 6559):            ╎ │             ← IgnorePointer ← _OverlayEntry-[GlobalKey 612888877] ← Stack ←
-I/flutter ( 6559):            ╎ │             _Theatre ← Overlay-[GlobalKey 199833992] ← ⋯
-I/flutter ( 6559):            ╎ │           parentData: <none>
-I/flutter ( 6559):            ╎ │           constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎ │           size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎ │           additionalConstraints: BoxConstraints(biggest)
-I/flutter ( 6559):            ╎ │
-I/flutter ( 6559):            ╎ └─child 2: RenderSemanticsAnnotations
-I/flutter ( 6559):            ╎   │ creator: Semantics ← Focus-[GlobalObjectKey
-I/flutter ( 6559):            ╎   │   MaterialPageRoute<void>(875520219)] ← _ModalScope-[GlobalKey
-I/flutter ( 6559):            ╎   │   816151164] ← _OverlayEntry-[GlobalKey 727622716] ← Stack ←
-I/flutter ( 6559):            ╎   │   _Theatre ← Overlay-[GlobalKey 199833992] ← _FocusScope ←
-I/flutter ( 6559):            ╎   │   Semantics ← Focus-[GlobalKey 489139594] ← AbsorbPointer ←
-I/flutter ( 6559):            ╎   │   Listener ← ⋯
-I/flutter ( 6559):            ╎   │ parentData: not positioned; offset=Offset(0.0, 0.0)
-I/flutter ( 6559):            ╎   │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎   │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎   │
-I/flutter ( 6559):            ╎   └─child: RenderOffstage
-I/flutter ( 6559):            ╎     │ creator: Offstage ← _FocusScope ← Semantics ←
-I/flutter ( 6559):            ╎     │   Focus-[GlobalObjectKey MaterialPageRoute<void>(875520219)] ←
-I/flutter ( 6559):            ╎     │   _ModalScope-[GlobalKey 816151164] ← _OverlayEntry-[GlobalKey
-I/flutter ( 6559):            ╎     │   727622716] ← Stack ← _Theatre ← Overlay-[GlobalKey 199833992] ←
-I/flutter ( 6559):            ╎     │   _FocusScope ← Semantics ← Focus-[GlobalKey 489139594] ← ⋯
-I/flutter ( 6559):            ╎     │ parentData: <none>
-I/flutter ( 6559):            ╎     │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎     │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎     │ offstage: false
-I/flutter ( 6559):            ╎     │
-I/flutter ( 6559):            ╎     └─child: RenderIgnorePointer
-I/flutter ( 6559):            ╎       │ creator: IgnorePointer ← Offstage ← _FocusScope ← Semantics ←
-I/flutter ( 6559):            ╎       │   Focus-[GlobalObjectKey MaterialPageRoute<void>(875520219)] ←
-I/flutter ( 6559):            ╎       │   _ModalScope-[GlobalKey 816151164] ← _OverlayEntry-[GlobalKey
-I/flutter ( 6559):            ╎       │   727622716] ← Stack ← _Theatre ← Overlay-[GlobalKey 199833992] ←
-I/flutter ( 6559):            ╎       │   _FocusScope ← Semantics ← ⋯
-I/flutter ( 6559):            ╎       │ parentData: <none>
-I/flutter ( 6559):            ╎       │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎       │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎       │ ignoring: false
-I/flutter ( 6559):            ╎       │ ignoringSemantics: implicitly false
-I/flutter ( 6559):            ╎       │
-I/flutter ( 6559):            ╎       └─child: RenderFractionalTranslation
-I/flutter ( 6559):            ╎         │ creator: FractionalTranslation ← SlideTransition ←
-I/flutter ( 6559):            ╎         │   _MountainViewPageTransition ← IgnorePointer ← Offstage ←
-I/flutter ( 6559):            ╎         │   _FocusScope ← Semantics ← Focus-[GlobalObjectKey
-I/flutter ( 6559):            ╎         │   MaterialPageRoute<void>(875520219)] ← _ModalScope-[GlobalKey
-I/flutter ( 6559):            ╎         │   816151164] ← _OverlayEntry-[GlobalKey 727622716] ← Stack ←
-I/flutter ( 6559):            ╎         │   _Theatre ← ⋯
-I/flutter ( 6559):            ╎         │ parentData: <none>
-I/flutter ( 6559):            ╎         │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎         │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎         │ translation: Offset(0.0, 0.0)
-I/flutter ( 6559):            ╎         │ transformHitTests: true
-I/flutter ( 6559):            ╎         │
-I/flutter ( 6559):            ╎         └─child: RenderRepaintBoundary
-I/flutter ( 6559):            ╎           │ creator: RepaintBoundary ← FractionalTranslation ←
-I/flutter ( 6559):            ╎           │   SlideTransition ← _MountainViewPageTransition ← IgnorePointer ←
-I/flutter ( 6559):            ╎           │   Offstage ← _FocusScope ← Semantics ← Focus-[GlobalObjectKey
-I/flutter ( 6559):            ╎           │   MaterialPageRoute<void>(875520219)] ← _ModalScope-[GlobalKey
-I/flutter ( 6559):            ╎           │   816151164] ← _OverlayEntry-[GlobalKey 727622716] ← Stack ← ⋯
-I/flutter ( 6559):            ╎           │ parentData: <none>
-I/flutter ( 6559):            ╎           │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎           │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎           │ metrics: 83.3% useful (1 bad vs 5 good)
-I/flutter ( 6559):            ╎           │ diagnosis: this is a useful repaint boundary and should be kept
-I/flutter ( 6559):            ╎           │
-I/flutter ( 6559):            ╎           └─child: RenderDecoratedBox
-I/flutter ( 6559):            ╎             │ creator: DecoratedBox ← Container ← AnimatedContainer ← Material
-I/flutter ( 6559):            ╎             │   ← AppHome ← _ModalScopeStatus ← PageStorage-[GlobalKey
-I/flutter ( 6559):            ╎             │   619728754] ← RepaintBoundary ← FractionalTranslation ←
-I/flutter ( 6559):            ╎             │   SlideTransition ← _MountainViewPageTransition ← IgnorePointer ←
-I/flutter ( 6559):            ╎             │   ⋯
-I/flutter ( 6559):            ╎             │ parentData: <none>
-I/flutter ( 6559):            ╎             │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎             │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎             │ decoration:
-I/flutter ( 6559):            ╎             │   <no decorations specified>
-I/flutter ( 6559):            ╎             │ configuration: ImageConfiguration(bundle:
-I/flutter ( 6559):            ╎             │   PlatformAssetBundle@367106502(), devicePixelRatio: 2.625,
-I/flutter ( 6559):            ╎             │   platform: android)
-I/flutter ( 6559):            ╎             │
-I/flutter ( 6559):            ╎             └─child: RenderDecoratedBox
-I/flutter ( 6559):            ╎               │ creator: DecoratedBox ← Container ← DecoratedBox ← Container ←
-I/flutter ( 6559):            ╎               │   AnimatedContainer ← Material ← AppHome ← _ModalScopeStatus ←
-I/flutter ( 6559):            ╎               │   PageStorage-[GlobalKey 619728754] ← RepaintBoundary ←
-I/flutter ( 6559):            ╎               │   FractionalTranslation ← SlideTransition ← ⋯
-I/flutter ( 6559):            ╎               │ parentData: <none>
-I/flutter ( 6559):            ╎               │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎               │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎               │ decoration:
-I/flutter ( 6559):            ╎               │   backgroundColor: Color(0xfffafafa)
-I/flutter ( 6559):            ╎               │ configuration: ImageConfiguration(bundle:
-I/flutter ( 6559):            ╎               │   PlatformAssetBundle@367106502(), devicePixelRatio: 2.625,
-I/flutter ( 6559):            ╎               │   platform: android)
-I/flutter ( 6559):            ╎               │
-I/flutter ( 6559):            ╎               └─child: _RenderInkFeatures
-I/flutter ( 6559):            ╎                 │ creator: _InkFeature-[GlobalKey ink renderer] ←
-I/flutter ( 6559):            ╎                 │   NotificationListener<LayoutChangedNotification> ← DecoratedBox
-I/flutter ( 6559):            ╎                 │   ← Container ← DecoratedBox ← Container ← AnimatedContainer ←
-I/flutter ( 6559):            ╎                 │   Material ← AppHome ← _ModalScopeStatus ← PageStorage-[GlobalKey
-I/flutter ( 6559):            ╎                 │   619728754] ← RepaintBoundary ← ⋯
-I/flutter ( 6559):            ╎                 │ parentData: <none>
-I/flutter ( 6559):            ╎                 │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎                 │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎                 │
-I/flutter ( 6559):            ╎                 └─child: RenderPositionedBox
-I/flutter ( 6559):            ╎                   │ creator: Center ← DefaultTextStyle ← AnimatedDefaultTextStyle ←
-I/flutter ( 6559):            ╎                   │   _InkFeature-[GlobalKey ink renderer] ←
-I/flutter ( 6559):            ╎                   │   NotificationListener<LayoutChangedNotification> ← DecoratedBox
-I/flutter ( 6559):            ╎                   │   ← Container ← DecoratedBox ← Container ← AnimatedContainer ←
-I/flutter ( 6559):            ╎                   │   Material ← AppHome ← ⋯
-I/flutter ( 6559):            ╎                   │ parentData: <none>
-I/flutter ( 6559):            ╎                   │ constraints: BoxConstraints(w=411.4, h=683.4)
-I/flutter ( 6559):            ╎                   │ size: Size(411.4, 683.4)
-I/flutter ( 6559):            ╎                   │ alignment: Alignment.center
-I/flutter ( 6559):            ╎                   │ widthFactor: expand
-I/flutter ( 6559):            ╎                   │ heightFactor: expand
-I/flutter ( 6559):            ╎                   │
-I/flutter ( 6559):            ╎                   └─child: RenderConstrainedBox relayoutBoundary=up1
-I/flutter ( 6559):            ╎                     │ creator: ConstrainedBox ← MaterialButton ← TextButton ← Center ←
-I/flutter ( 6559):            ╎                     │   DefaultTextStyle ← AnimatedDefaultTextStyle ←
-I/flutter ( 6559):            ╎                     │   _InkFeature-[GlobalKey ink renderer] ←
-I/flutter ( 6559):            ╎                     │   NotificationListener<LayoutChangedNotification> ← DecoratedBox
-I/flutter ( 6559):            ╎                     │   ← Container ← DecoratedBox ← Container ← ⋯
-I/flutter ( 6559):            ╎                     │ parentData: offset=Offset(156.7, 323.7)
-I/flutter ( 6559):            ╎                     │ constraints: BoxConstraints(0.0<=w<=411.4, 0.0<=h<=683.4)
-I/flutter ( 6559):            ╎                     │ size: Size(98.0, 36.0)
-I/flutter ( 6559):            ╎                     │ additionalConstraints: BoxConstraints(88.0<=w<=Infinity, h=36.0)
-I/flutter ( 6559):            ╎                     │
-I/flutter ( 6559):            ╎                     └─child: RenderSemanticsGestureHandler relayoutBoundary=up2
-I/flutter ( 6559):            ╎                       │ creator: _GestureSemantics ← RawGestureDetector ← GestureDetector
-I/flutter ( 6559):            ╎                       │   ← InkWell ← IconTheme ← DefaultTextStyle ←
-I/flutter ( 6559):            ╎                       │   AnimatedDefaultTextStyle ← ConstrainedBox ← MaterialButton ←
-I/flutter ( 6559):            ╎                       │   TextButton ← Center ← DefaultTextStyle ← ⋯
-I/flutter ( 6559):            ╎                       │ parentData: <none>
-I/flutter ( 6559):            ╎                       │ constraints: BoxConstraints(88.0<=w<=411.4, h=36.0)
-I/flutter ( 6559):            ╎                       │ size: Size(98.0, 36.0)
-I/flutter ( 6559):            ╎                       │
-I/flutter ( 6559):            ╎                       └─child: RenderPointerListener relayoutBoundary=up3
-I/flutter ( 6559):            ╎                         │ creator: Listener ← _GestureSemantics ← RawGestureDetector ←
-I/flutter ( 6559):            ╎                         │   GestureDetector ← InkWell ← IconTheme ← DefaultTextStyle ←
-I/flutter ( 6559):            ╎                         │   AnimatedDefaultTextStyle ← ConstrainedBox ← MaterialButton ←
-I/flutter ( 6559):            ╎                         │   TextButton ← Center ← ⋯
-I/flutter ( 6559):            ╎                         │ parentData: <none>
-I/flutter ( 6559):            ╎                         │ constraints: BoxConstraints(88.0<=w<=411.4, h=36.0)
-I/flutter ( 6559):            ╎                         │ size: Size(98.0, 36.0)
-I/flutter ( 6559):            ╎                         │ behavior: opaque
-I/flutter ( 6559):            ╎                         │ listeners: down
-I/flutter ( 6559):            ╎                         │
-I/flutter ( 6559):            ╎                         └─child: RenderPadding relayoutBoundary=up4
-I/flutter ( 6559):            ╎                           │ creator: Padding ← Container ← Listener ← _GestureSemantics ←
-I/flutter ( 6559):            ╎                           │   RawGestureDetector ← GestureDetector ← InkWell ← IconTheme ←
-I/flutter ( 6559):            ╎                           │   DefaultTextStyle ← AnimatedDefaultTextStyle ← ConstrainedBox ←
-I/flutter ( 6559):            ╎                           │   MaterialButton ← ⋯
-I/flutter ( 6559):            ╎                           │ parentData: <none>
-I/flutter ( 6559):            ╎                           │ constraints: BoxConstraints(88.0<=w<=411.4, h=36.0)
-I/flutter ( 6559):            ╎                           │ size: Size(98.0, 36.0)
-I/flutter ( 6559):            ╎                           │ padding: EdgeInsets(16.0, 0.0, 16.0, 0.0)
-I/flutter ( 6559):            ╎                           │
-I/flutter ( 6559):            ╎                           └─child: RenderPositionedBox relayoutBoundary=up5
-I/flutter ( 6559):            ╎                             │ creator: Center ← Padding ← Container ← Listener ←
-I/flutter ( 6559):            ╎                             │   _GestureSemantics ← RawGestureDetector ← GestureDetector ←
-I/flutter ( 6559):            ╎                             │   InkWell ← IconTheme ← DefaultTextStyle ←
-I/flutter ( 6559):            ╎                             │   AnimatedDefaultTextStyle ← ConstrainedBox ← ⋯
-I/flutter ( 6559):            ╎                             │ parentData: offset=Offset(16.0, 0.0)
-I/flutter ( 6559):            ╎                             │ constraints: BoxConstraints(56.0<=w<=379.4, h=36.0)
-I/flutter ( 6559):            ╎                             │ size: Size(66.0, 36.0)
-I/flutter ( 6559):            ╎                             │ alignment: Alignment.center
-I/flutter ( 6559):            ╎                             │ widthFactor: 1.0
-I/flutter ( 6559):            ╎                             │ heightFactor: expand
-I/flutter ( 6559):            ╎                             │
-I/flutter ( 6559):            ╎                             └─child: RenderParagraph relayoutBoundary=up6
-I/flutter ( 6559):            ╎                               │ creator: RichText ← Text ← Center ← Padding ← Container ←
-I/flutter ( 6559):            ╎                               │   Listener ← _GestureSemantics ← RawGestureDetector ←
-I/flutter ( 6559):            ╎                               │   GestureDetector ← InkWell ← IconTheme ← DefaultTextStyle ← ⋯
-I/flutter ( 6559):            ╎                               │ parentData: offset=Offset(0.0, 10.0)
-I/flutter ( 6559):            ╎                               │ constraints: BoxConstraints(0.0<=w<=379.4, 0.0<=h<=36.0)
-I/flutter ( 6559):            ╎                               │ size: Size(66.0, 16.0)
-I/flutter ( 6559):            ╎                               ╘═╦══ text ═══
-I/flutter ( 6559):            ╎                                 ║ TextSpan:
-I/flutter ( 6559):            ╎                                 ║   inherit: false
-I/flutter ( 6559):            ╎                                 ║   color: Color(0xdd000000)
-I/flutter ( 6559):            ╎                                 ║   family: "Roboto"
-I/flutter ( 6559):            ╎                                 ║   size: 14.0
-I/flutter ( 6559):            ╎                                 ║   weight: 500
-I/flutter ( 6559):            ╎                                 ║   baseline: alphabetic
-I/flutter ( 6559):            ╎                                 ║   "Dump App"
-I/flutter ( 6559):            ╎                                 ╚═══════════
-I/flutter ( 6559):            ╎
-I/flutter ( 6559):            └╌no offstage children
+In the render tree for **Example 5**:
 
-```
+* The `RenderView`, or window size, limits all render objects up to and
+  including [`RenderPositionedBox`][]`#dc1df` render object
+  to the size of the screen.
+  This example sets the size to `Size(800.0, 600.0)`
+
+* The `constraints` property of each render object limits the size
+  of each child. This property takes the [`BoxConstraints`][] render object as a value.
+  Starting with the `RenderSemanticsAnnotations#fe6b5`, the constraint equals
+  `BoxConstraints(w=800.0, h=600.0)`.
+
+* The [`Center`][] widget created the `RenderPositionedBox#dc1df` render object
+  under the `RenderSemanticsAnnotations#8187b` sub-tree.
+
+* Each child under this render object has `BoxConstraints` with both
+  minimum and maximum values. For example, `RenderSemanticsAnnotations#a0a4b`
+  uses `BoxConstraints(0.0<=w<=800.0, 0.0<=h<=600.0)`.
+
+* All children of the `RenderPhysicalShape#8e171` render object use
+  `BoxConstraints(BoxConstraints(56.0<=w<=800.0, 28.0<=h<=600.0))`.
+
+* The child `RenderPadding#8455f` sets a `padding` value of
+  `EdgeInsets(8.0, 0.0, 8.0, 0.0)`.
+  This sets a left and right padding of 8 to all subsequent children of
+  this render object.
+  They now have new constraints:
+  `BoxConstraints(40.0<=w<=784.0, 28.0<=h<=600.0)`.
 
-This is the output of the root `RenderObject` object's
-`toStringDeep()` function.
-
-这是根节点 `RenderObject` 对象的 `toStringDeep()` 方法的输出结果。
-
-When debugging layout issues, the key fields to look at are the
-`size` and `constraints` fields. The constraints flow down the tree,
-and the sizes flow back up.
-
-在调试布局问题时，主要需要关注 `size` 和 `constraints` 两个字段。
-constraint 沿树向下传递，而 size 则向上追溯。
-
-For example, in the previous dump you can see that the window size,
-`Size(411.4, 683.4)`, is used to force all the boxes down to the
-[`RenderPositionedBox`][] to be the size of the screen, with
-constraints of `BoxConstraints(w=411.4, h=683.4)`.
-The `RenderPositionedBox`, which the dump says was created by a
-[`Center`][] widget (as described by the `creator` field),
-sets its child's constraints to a loose version of this:
-`BoxConstraints(0.0<=w<=411.4, 0.0<=h<=683.4)`. The child, a
-[`RenderPadding`][], further inserts these constraints to ensure
-there is room for the padding, and thus the [`RenderConstrainedBox`][]
-has a loose constraint of `BoxConstraints(0.0<=w<=395.4,
-0.0<=h<=667.4)`. This object, which the `creator` field tells us is
+This object, which the `creator` field tells us is
 probably part of the [`TextButton`][]'s definition,
 sets a minimum width of 88 pixels on its contents and a
-specific height of 36.0. (This is the `TextButton` class implementing
-the Material Design guidelines regarding button dimensions.)
-
-比如，从上面转储信息中可以看出窗口尺寸是 `Size(411.4, 683.4)`，
-它用于强制 [`RenderPositionedBox`][] 之前的所有 box 为屏幕尺寸，
-其约束为 `BoxConstraints(w=411.4, h=683.4)`。
-从转储文件可以看出 `RenderPositionedBox` 是由 [`Center`][] widget 创建的
-（可以从 `creator` 字段的描述看出来），并将其 child 的约束条件变得松散：
-约束范围是 `BoxConstraints(0.0<=w<=411.4, 0.0<=h<=683.4)`。
-其后代的 [`RenderPadding`][] 进一步插入这些约束来确保留出空间作为内边距，
-因此 [`RenderConstrainedBox`][] 有一个宽松的约束，该约束为：
-`BoxConstraints(0.0<=w<=395.4,0.0<=h<=667.4)`。
-`creator` 字段告诉我们，这个对象很可能是 [`TextButton`][] 定义的一部分，
-它内容的最小宽度为 88 像素，具体高度为 36.0。
-（`TextButton` 是 Material Design 中按钮尺寸标准的实现。）
-
-The inner-most `RenderPositionedBox` loosens the constraints again,
-this time to center the text within the button. The
-[`RenderParagraph`][] picks its size based on its contents.
-If you now follow the sizes back up the chain,
-you'll see how the text's size is what influences the
-width of all the boxes that form the button, as they all take their
-child's dimensions to size themselves.
-
-最内部的 `RenderPositionedBox` 再次放松了约束，这次是把文本放在了按钮的中间。
-[`RenderParagraph`][] 可以根据其内容确定自身大小。
-如果您现在沿着这条链路往回追溯渲染对象的尺寸大小，
-您就会看到在文本的大小是如何影响按钮边框大小的形成过程，
-因为它们都会根据子组件的尺寸自行调整大小。
-
-Another way to notice this is by looking at the "relayoutSubtreeRoot"
-part of the descriptions of each box, which essentially tells you how
-many ancestors depend on this element's size in some way.
-Thus the `RenderParagraph` has a `relayoutSubtreeRoot=up8`,
-meaning that when the `RenderParagraph` is dirtied,
-eight ancestors also have to be dirtied because they might be
-affected by the new dimensions.
-
-注意到这点的另一种方式为：查看每个 box 的「relayoutSubtreeRoot」部分，
-它本质上在告诉您，在某种程度上有多少祖先在依赖于这个元素的尺寸。
-因此，`RenderParagraph` 有 `relayoutSubtreeRoot=up8`，
-这意味着当 `RenderParagraph` 被标为 dirty 时，8 个祖先也会被标为 dirty，
-因为它们可能会受到新尺寸的影响。
-
-If you write your own render objects, you can add information to the
-dump by overriding [`debugFillProperties()`][render-fill].
-Add [DiagnosticsProperty][]
-objects to the method's argument, and call the superclass method.
-
-对于您自己写的 render 对象，可以通过重写 [`debugFillProperties()`][render-fill] 
-方法为转储数据添加信息。在方法中的参数中添加 [DiagnosticsProperty][] 对象，并调用父类方法即可。
-
-### Layer tree
-
-### Layer 树
-
-If you are trying to debug a compositing issue, you can use
-[`debugDumpLayerTree()`][].
-For the previous example, it would output:
-
-如果您在尝试调试一个合成问题，您可以使用 [`debugDumpLayerTree()`][]。
-在前面案例中调用这个方法，会输出如下结果：
+specific height of 36.0. This is the `TextButton` class implementing
+the Material Design guidelines regarding button dimensions.
 
-```
-I/flutter : TransformLayer
-I/flutter :  │ creator: [root]
-I/flutter :  │ offset: Offset(0.0, 0.0)
-I/flutter :  │ transform:
-I/flutter :  │   [0] 3.5,0.0,0.0,0.0
-I/flutter :  │   [1] 0.0,3.5,0.0,0.0
-I/flutter :  │   [2] 0.0,0.0,1.0,0.0
-I/flutter :  │   [3] 0.0,0.0,0.0,1.0
-I/flutter :  │
-I/flutter :  ├─child 1: OffsetLayer
-I/flutter :  │ │ creator: RepaintBoundary ← _FocusScope ← Semantics ← Focus-[GlobalObjectKey MaterialPageRoute(560156430)] ← _ModalScope-[GlobalKey 328026813] ← _OverlayEntry-[GlobalKey 388965355] ← Stack ← Overlay-[GlobalKey 625702218] ← Navigator-[GlobalObjectKey _MaterialAppState(859106034)] ← Title ← ⋯
-I/flutter :  │ │ offset: Offset(0.0, 0.0)
-I/flutter :  │ │
-I/flutter :  │ └─child 1: PictureLayer
-I/flutter :  │
-I/flutter :  └─child 2: PictureLayer
-```
+`RenderPositionedBox#80b8d` render object loosens the constraints again
+to center the text within the button.
+The [`RenderParagraph`][]#59bc2 render object picks its size based on
+its contents.
+If you follow the sizes back up the tree,
+you see how the size of the text influences the width of all the boxes
+that form the button.
+All parents take their child's dimensions to size themselves.
+
+Another way to notice this is by looking at the `relayoutBoundary`
+attribute of in the descriptions of each box.
+This tells you how many ancestors depend on this element's size.
 
-This is the output of calling `toStringDeep` on the root `Layer` object.
+For example, the innermost `RenderPositionedBox` line has a `relayoutBoundary=up13`.
+This means that when Flutter marks the `RenderConstrainedBox` as dirty,
+it also marks box's 13 ancestors as dirty because the new dimensions
+might affect those ancestors.
 
-这是根 `Layer` 对象调用 `toStringDeep` 方法时的输出结果。
+To add information to the dump if you write your own render objects,
+override [`debugFillProperties()`][render-fill].
+Add [DiagnosticsProperty][] objects to the method's argument
+then call the superclass method.
 
-The transform at the root is the transform that applies the device
-pixel ratio; in this case, a ratio of 3.5 device pixels for every
-logical pixel.
+### Print the layer tree
 
-根结点的 transform 是设备像素比率的变换；在该示例中，每个逻辑像素对应 3.5 个设备像素。
+To debug a compositing issue, use [`debugDumpLayerTree()`][].
 
-The `RepaintBoundary` widget, which creates a `RenderRepaintBoundary`
-in the render tree, creates a new layer in the layer tree. This is
-used to reduce how much needs to be repainted.
+#### Example 6: Call `debugDumpLayerTree()`
+{:.no_toc}
+
+<?code-excerpt "lib/dump_layer_tree.dart"?>
+```dart
+import 'package:flutter/material.dart';
+
+void main() {
+  runApp(
+    const MaterialApp(
+      home: AppHome(),
+    ),
+  );
+}
 
-`RepaintBoundary` widget 在 render 树中创建了一个 `RenderRepaintBoundary`，
-并在 layer 树中创建了一个新的层。这可以用来减少需要重绘的次数。
+class AppHome extends StatelessWidget {
+  const AppHome({super.key});
 
-### Focus tree
+  @override
+  Widget build(BuildContext context) {
+    return Material(
+      child: Center(
+        child: TextButton(
+          onPressed: () {
+            debugDumpLayerTree();
+          },
+          child: const Text('Dump Layer Tree'),
+        ),
+      ),
+    );
+  }
+}
+```
 
-### Focus 树
+<details markdown="1">
+<summary><strong>Expand to view the output of layer tree for Example 6</strong></summary>
 
-To debug a focus or shortcut issue, you can dump the focus tree
-using [`debugDumpFocusTree()`][].
+{% include_relative trees/layer-tree.md -%}
 
-要调试焦点或快捷键问题，可以使用 [`debugDumpFocusTree()`][] 方法转储 focus 树。
+</details>
 
-For example:
+The `RepaintBoundary` widget creates:
 
-例如：
+1. A `RenderRepaintBoundary` RenderObject in the render tree
+   as shown in the **Example 5** results.
 
-```
-I/flutter : FocusManager#6fb59
-I/flutter :  │ primaryFocus: FocusScopeNode#3c26f(_ModalScopeState<dynamic>
-I/flutter :  │   Focus Scope [PRIMARY FOCUS])
-I/flutter :  │ primaryFocusCreator: FocusScope ← PrimaryScrollController ←
-I/flutter :  │   _ActionsScope ← Actions ← Builder ← PageStorage ← Offstage ←
-I/flutter :  │   _ModalScopeStatus ← UnmanagedRestorationScope ←
-I/flutter :  │   RestorationScope ← AnimatedBuilder ←
-I/flutter :  │   _ModalScope<dynamic>-[LabeledGlobalKey<_ModalScopeState<dynamic>>#f36a2]
-I/flutter :  │   ← Semantics ← _RenderTheaterMarker ← _EffectiveTickerMode ←
-I/flutter :  │   TickerMode ←
-I/flutter :  │   _OverlayEntryWidget-[LabeledGlobalKey<_OverlayEntryWidgetState>#2e2a3]
-I/flutter :  │   ← _Theater ← Overlay-[LabeledGlobalKey<OverlayState>#89fc1] ←
-I/flutter :  │   UnmanagedRestorationScope ← ⋯
-I/flutter :  │
-I/flutter :  └─rootScope: FocusScopeNode#95ff1(Root Focus Scope [IN FOCUS PATH])
-I/flutter :    │ IN FOCUS PATH
-I/flutter :    │ focusedChildren: FocusScopeNode#001cc(Navigator Scope [IN FOCUS
-I/flutter :    │   PATH])
-I/flutter :    │
-I/flutter :    └─Child 1: FocusNode#79786([IN FOCUS PATH])
-I/flutter :      │ context: Focus
-I/flutter :      │ NOT FOCUSABLE
-I/flutter :      │ IN FOCUS PATH
-I/flutter :      │
-I/flutter :      └─Child 1: FocusNode#15aec(Shortcuts [IN FOCUS PATH])
-I/flutter :        │ context: Focus
-I/flutter :        │ NOT FOCUSABLE
-I/flutter :        │ IN FOCUS PATH
-I/flutter :        │
-I/flutter :        └─Child 1: FocusNode#3514b(Shortcuts [IN FOCUS PATH])
-I/flutter :          │ context: Focus
-I/flutter :          │ NOT FOCUSABLE
-I/flutter :          │ IN FOCUS PATH
-I/flutter :          │
-I/flutter :          └─Child 1: _FocusTraversalGroupNode#0ccda(FocusTraversalGroup [IN FOCUS PATH])
-I/flutter :            │ context: Focus
-I/flutter :            │ NOT FOCUSABLE
-I/flutter :            │ IN FOCUS PATH
-I/flutter :            │
-I/flutter :            └─Child 1: FocusNode#e2413(Shortcuts [IN FOCUS PATH])
-I/flutter :              │ context: Focus
-I/flutter :              │ NOT FOCUSABLE
-I/flutter :              │ IN FOCUS PATH
-I/flutter :              │
-I/flutter :              └─Child 1: FocusScopeNode#001cc(Navigator Scope [IN FOCUS PATH])
-I/flutter :                │ context: FocusScope
-I/flutter :                │ IN FOCUS PATH
-I/flutter :                │ focusedChildren: FocusScopeNode#3c26f(_ModalScopeState<dynamic>
-I/flutter :                │   Focus Scope [PRIMARY FOCUS])
-I/flutter :                │
-I/flutter :                └─Child 1: _FocusTraversalGroupNode#1d456(FocusTraversalGroup [IN FOCUS PATH])
-I/flutter :                  │ context: Focus
-I/flutter :                  │ NOT FOCUSABLE
-I/flutter :                  │ IN FOCUS PATH
-I/flutter :                  │
-I/flutter :                  └─Child 1: FocusNode#3635f(Navigator [IN FOCUS PATH])
-I/flutter :                    │ context: Focus
-I/flutter :                    │ IN FOCUS PATH
-I/flutter :                    │
-I/flutter :                    └─Child 1: FocusScopeNode#3c26f(_ModalScopeState<dynamic> Focus Scope [PRIMARY FOCUS])
-I/flutter :                        context: FocusScope
-I/flutter :                        PRIMARY FOCUS
-```
+   ```nocode
+   ╎     └─child: RenderRepaintBoundary#f8f28
+   ╎       │ needs compositing
+   ╎       │ creator: RepaintBoundary ← _FocusInheritedScope ← Semantics ←
+   ╎       │   FocusScope ← PrimaryScrollController ← _ActionsScope ← Actions
+   ╎       │   ← Builder ← PageStorage ← Offstage ← _ModalScopeStatus ←
+   ╎       │   UnmanagedRestorationScope ← ⋯
+   ╎       │ parentData: <none> (can use size)
+   ╎       │ constraints: BoxConstraints(w=800.0, h=600.0)
+   ╎       │ layer: OffsetLayer#e73b7
+   ╎       │ size: Size(800.0, 600.0)
+   ╎       │ metrics: 66.7% useful (1 bad vs 2 good)
+   ╎       │ diagnosis: insufficient data to draw conclusion (less than five
+   ╎       │   repaints)
+   ```
 
-The focused node is labeled `PRIMARY FOCUS`. Ancestors of the focus nodes are
-labeled `IN FOCUS PATH`.
+1. A new layer in the layer tree as shown in the **Example 6**
+   results.
 
-聚焦的节点标记为 `PRIMARY FOCUS`。聚焦节点的祖先标记为 `IN FOCUS PATH`。
+   ```nocode
+   ├─child 1: OffsetLayer#0f766
+   │ │ creator: RepaintBoundary ← _FocusInheritedScope ← Semantics ←
+   │ │   FocusScope ← PrimaryScrollController ← _ActionsScope ← Actions
+   │ │   ← Builder ← PageStorage ← Offstage ← _ModalScopeStatus ←
+   │ │   UnmanagedRestorationScope ← ⋯
+   │ │ engine layer: OffsetEngineLayer#1768d
+   │ │ handles: 2
+   │ │ offset: Offset(0.0, 0.0)
+   ```
 
-If your app uses the [`Focus`][] widget, you can use the [`debugLabel`][]
-property to make it easier to find its focus node in the tree.
+This reduces how much needs to be repainted.
 
-如果您的应用使用 [`Focus`][] widget，
-可以使用 [`debugLabel`][] 属性来更容易地在树中找到它的 focus 节点。
+### Print the focus tree
 
-You can also use the [`debugFocusChanges`][] boolean flag to enable
-extensive logging when the focus changes.
+To debug a focus or shortcut issue, dump the focus tree
+using the [`debugDumpFocusTree()`][] function.
 
-你也可以使用布尔类型标记 [`debugFocusChanges`][]
-在 focus 改变时启用详细的日志记录。
+The `debugDumpFocusTree()` method returns the focus tree for the app.
 
-### Semantics tree
+The focus tree labels nodes in the following way:
 
-### Semantics 树
+* The focused node is labeled `PRIMARY FOCUS`.
+* Ancestors of the focus nodes are labeled `IN FOCUS PATH`.
 
-You can also obtain a dump of the Semantics tree
-(the tree presented to the system accessibility APIs) using
-[`debugDumpSemanticsTree()`][].  To use this,
-you have to have first enable accessibility, for example, by
-enabling a system accessibility tool or the `SemanticsDebugger`.
+If your app uses the [`Focus`][] widget, use the [`debugLabel`][]
+property to simplify finding its focus node in the tree.
 
-您也可以使用 [`debugDumpSemanticsTree()`][] 获得 Semantics 树
-（该树提供了系统的 accessibility API）的转储信息。想要使用它，
-首先必须启用 accessibility，例如，通过启用系统 accessibility 工具或 `SemanticsDebugger`。
+You can also use the [`debugFocusChanges`][] boolean property to enable
+extensive logging when the focus changes.
 
-For the previous example, it would output the following:
+#### Example 7: Call `debugDumpFocusTree()`
+{:.no_toc}
 
-在前面案例中调用这个方法，会输出如下结果：
+<?code-excerpt "lib/dump_focus_tree.dart"?>
+```dart
+import 'package:flutter/material.dart';
 
-```
-I/flutter : SemanticsNode(0; Rect.fromLTRB(0.0, 0.0, 411.4, 683.4))
-I/flutter :  ├SemanticsNode(1; Rect.fromLTRB(0.0, 0.0, 411.4, 683.4))
-I/flutter :  │ └SemanticsNode(2; Rect.fromLTRB(0.0, 0.0, 411.4, 683.4); canBeTapped)
-I/flutter :  └SemanticsNode(3; Rect.fromLTRB(0.0, 0.0, 411.4, 683.4))
-I/flutter :    └SemanticsNode(4; Rect.fromLTRB(0.0, 0.0, 82.0, 36.0); canBeTapped; "Dump App")
+void main() {
+  runApp(
+    const MaterialApp(
+      home: AppHome(),
+    ),
+  );
+}
+
+class AppHome extends StatelessWidget {
+  const AppHome({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Material(
+      child: Center(
+        child: TextButton(
+          onPressed: () {
+            debugDumpFocusTree();
+          },
+          child: const Text('Dump Focus Tree'),
+        ),
+      ),
+    );
+  }
+}
 ```
 
-<!-- this tree is bad, see {{site.repo.flutter}}/issues/2476 -->
+<details markdown="1">
+<summary><strong>Expand to view the focus tree for Example 7</strong></summary>
 
-### Scheduling
+{% include_relative trees/focus-tree.md -%}
 
-To find out where your events happen relative to the frame's
-begin/end, you can toggle the [`debugPrintBeginFrameBanner`][]
-and the [`debugPrintEndFrameBanner`][] booleans to print the
-beginning and end of the frames to the console.
+</details>
 
-如果您想要找到事件触发对应的开始或结束帧，可以将 [`debugPrintBeginFrameBanner`][] 
-和 [`debugPrintEndFrameBanner`][] 这两个布尔值切换为 true，在控制台中打印开始和结束帧的信息。
+### Print the semantics tree
 
-For example:
+The `debugDumpSemanticsTree()` function prints the semantic tree for the app.
 
-比如：
+The Semantics tree is presented to the system accessibility APIs.
+To obtain a dump of the Semantics tree:
 
+1. Enable accessibility using a system accessibility tool
+   or the `SemanticsDebugger`
+1. Use the [`debugDumpSemanticsTree()`][] function.
+
+#### Example 8: Call `debugDumpSemanticsTree()`
+{:.no_toc}
+
+<?code-excerpt "lib/dump_semantic_tree.dart"?>
+```dart
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart';
+
+void main() {
+  runApp(
+    const MaterialApp(
+      home: AppHome(),
+    ),
+  );
+}
+
+class AppHome extends StatelessWidget {
+  const AppHome({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Material(
+      child: Center(
+        child: Semantics(
+          button: true,
+          enabled: true,
+          label: 'Clickable text here!',
+          child: GestureDetector(
+              onTap: () {
+                debugDumpSemanticsTree();
+                if (kDebugMode) {
+                  print('Clicked!');
+                }
+              },
+              child: const Text('Click Me!', style: TextStyle(fontSize: 56))),
+        ),
+      ),
+    );
+  }
+}
 ```
+
+<details markdown="1">
+<summary><strong>Expand to view the semantic tree for Example 8</strong></summary>
+
+{% include_relative trees/semantic-tree.md -%}
+
+</details>
+
+### Print event timings
+
+If you want to find out where your events happen relative to the frame's
+begin and end, you can set prints to log these events.
+To print the beginning and end of the frames to the console,
+toggle the [`debugPrintBeginFrameBanner`][]
+and the [`debugPrintEndFrameBanner`][].
+
+**The print frame banner log for Example 1**
+
+```nocode
 I/flutter : ▄▄▄▄▄▄▄▄ Frame 12         30s 437.086ms ▄▄▄▄▄▄▄▄
 I/flutter : Debug print: Am I performing this work more than once per frame?
 I/flutter : Debug print: Am I performing this work more than once per frame?
 I/flutter : ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
 ```
 
-The [`debugPrintScheduleFrameStacks`][] flag can also be used
-to print the call stack causing the current frame to be scheduled.
-
-当前帧被调度时，[`debugPrintScheduleFrameStacks`][] 标志也可以用来打印调用堆栈信息。
-
-## Debug flags: layout
+To print the call stack causing the current frame to be scheduled,
+use the [`debugPrintScheduleFrameStacks`][] flag.
 
-## 调试标志：布局
+## Debug layout issues
 
-You can also debug a layout problem visually, by setting
+To debug a layout problem using a GUI, set
 [`debugPaintSizeEnabled`][] to `true`.
-This is a boolean from the `rendering` library. It can be
-enabled at any time and affects all painting while it is true.
-The easiest way to set it is at the top of your `void main()`
-entry point. See an example in the following code:
+This flag can be found in the `rendering` library.
+You can enable it at any time and affects all painting while `true`.
+Consider adding it to the top of your `void main()` entry point.
 
-通过将 [`debugPaintSizeEnabled`][] 设置为 true，您也可以可视地调试布局问题。
-该布尔值在 `rendering` 库中，可以在任何时候被启用，
-并且当其为 true 时，会影响界面上所有的绘制。
-最简单的方式是在程序顶部入口 `void main()`中设置它，如下案例代码所示：
+#### Example 8
+{:.no_toc}
+
+See an example in the following code:
 
 <?code-excerpt "lib/debug_flags.dart (debugPaintSizeEnabled)"?>
 ```dart
@@ -995,73 +582,50 @@ void main() {
 }
 ```
 
-When it is enabled, all boxes get a bright teal border,
-padding (from widgets like `Padding`) is shown in faded
-blue with a darker blue box around the child, alignment
-(from widgets like `Center` and `Align`) is shown with
-yellow arrows, and spacers (from widgets like
-`Container` when they have no child) are shown in gray.
+When enabled, Flutter displays the following changes to your app:
 
-当它被启用时，所有的 box 都会有明亮的蓝绿色边框，内边距（来自于 widgets，比如 `Padding`）
-显示为淡蓝色，并在 child 周围有一个深蓝色的 box，对齐方式（来自于 widgets，比如 `Center` 和 `Align`）
-显示为黄色箭头，还有间隔（来自于 widgets，比如当 `Container` 没有 child 时）显示灰色。
+* Displays all boxes in a bright teal border.
+* Displays all padding as a box with a faded blue fill and blue border
+  around the child widget.
+* Displays all alignment positioning with yellow arrows.
+* Displays all spacers in gray, when they have no child.
 
 The [`debugPaintBaselinesEnabled`][] flag
 does something similar but for objects with baselines.
-The alphabetic baseline is shown in bright green and the
-ideographic baseline in orange.
-
-`debugPaintBaselinesEnabled`][] 标志和它类似，但只针对于带有基线的对象。
-alphabetic 基线用亮绿色显示，ideographic 基线用橙色显示。
+The app displays the baseline for alphabetic characters in bright green
+and the baseline for ideographic characters in orange.
+Alphabetic characters "sit" on the alphabetic baseline,
+but that baseline "cuts" through the bottom of [CJK characters][cjk].
+Flutter positions the ideographic baseline at the very bottom of the text line.
 
-The [`debugPaintPointersEnabled`][] flag turns on a
-special mode whereby any objects that are being tapped
-get highlighted in teal. This can help you determine
-whether an object is somehow failing to correctly hit
-test (which might happen if, for instance, it is actually
-outside the bounds of its parent and thus not
-being considered for hit testing in the first place).
+The [`debugPaintPointersEnabled`][] flag turns on a special mode that
+highlights any objects that you tap in teal.
+This can help you determine if an object fails to hit test.
+This might happen if the object falls outside the bounds of its parent
+and thus not considered for hit testing in the first place.
 
-[`debugPaintPointersEnabled`][] 标志会打开一个特殊模式，任何被选中的对象都会以蓝绿色高亮显示。
-这可以帮助您确定对象是否会以某种方式未能正确命中测试（这是可能会发生的，例如，
-实际上它在父节点的边界之外，因此一开始就不用考虑进行命中测试）。
+If you're trying to debug compositor layers, consider using the following flags.
 
-If you're trying to debug compositor layers, for example
-to determine whether and where to add `RepaintBoundary`
-widgets, you can use the [`debugPaintLayerBordersEnabled`][]
-flag, which outlines each layer's bounds in orange,
-or the [`debugRepaintRainbowEnabled`][] flag,
-which causes layers to be overlayed with a rotating set of
-colors whenever they are repainted.
+* Use the [`debugPaintLayerBordersEnabled`][] flag to find the boundaries
+  of each layer. This flag results in outlining each layer's bounds in orange.
 
-如果您试图调试合成层，比如要确定是否应该在某处添加 `RepaintBoundary` widget，
-您可以使用 [`debugPaintLayerBordersEnabled`][] 标志，来用为每个 layer 的边界显示橙色边框，
-或使用 [`debugRepaintRainbowEnabled`][] 标志，这会使得每当重新绘制图层时，
-边框的颜色就会被一组轮转的颜色覆盖。
+* Use the [`debugRepaintRainbowEnabled`][] flag to display a repainted layer.
+  Whenever a layer repaints, it overlays with a rotating set of colors.
 
-All of these flags only work in [debug mode][].
-In general, anything in the Flutter framework that starts with
-"`debug...`" only works in debug mode.
+Any function or method in the Flutter framework that starts with
+`debug...` only works in [debug mode][].
 
-上面所有的标志都只在 [调试模式][debug mode] 下生效。一般来说，Flutter 
-框架中以「`debug...`」开头的都只能在调试模式下工作。
+[cjk]: https://en.wikipedia.org/wiki/CJK_characters
 
-## Debugging animations
-
-## 调试动画
+## Debug animation issues
 
 {{site.alert.note}}
-
-  The easiest way to debug animations is to slow them down.
-  You can do this using the **Slow Animations** button in
-  DevTools' [Inspector view][], which slows down the
-  animation by 5x. If you want more control over the
-  amount of slowness, use the following instructions.
-
-  调试动画最简单的方法是放慢它们的速度。您可以在 DevTools 的 [Inspector view][] 
-  通过 **Slow Animations** 按钮来实现动画慢放，这会使动画速度降低 5 倍。
-  如果您希望控制更多的慢速程度，请参考下面的说明。
-
+  To debug animations with the least effort, slow them down.
+  To slow down the animation,
+  click **Slow Animations** in DevTools' [Inspector view][].
+  This reduces the animation to 20% speed.
+  If you want more control over the amount of slowness,
+  use the following instructions.
 {{site.alert.end}}
 
 Set the [`timeDilation`][] variable (from the `scheduler`
@@ -1072,177 +636,122 @@ animations are running, it's possible that the framework
 will observe time going backwards, which will probably
 result in asserts and generally interfere with your efforts.
 
-将 [`timeDilation`][] 变量（来自 `scheduler` 库）设置为大于 1.0 的数字，例如，50.0。
-该操作最好在应用启动时只执行一次。如果您动态地改变，尤其是在动画运行时减少它时，
-框架可能会观察到时间倒退，这可能会导致断言失败，通常这会让您徒劳无功。
-
-## Debug flags: performance
-
-## 调试标志：性能
+## Debug performance issues
 
 {{site.alert.note}}
-
   You can achieve similar results to some of these debug
-  flags using [DevTools][]. Some of the debug flags aren't
-  particularly useful. If you find a flag that has
-  functionality you would like to see added to [DevTools][],
-  please [file an issue][].
-
-  您可以使用 [DevTools][] 实现和这些调试标志类似的结果。有些调试标记不是特别有用。
-  如果您发现一个标志，并想把该功能添加到 [DevTools][]，请 [提出一个 issue][file an issue]。
-
+  flags using [DevTools][]. Some of the debug flags provide little benefit.
+  If you find a flag with functionality you would like to add to [DevTools][],
+  [file an issue][].
 {{site.alert.end}}
 
-Flutter provides a wide variety of debug flags and functions
+Flutter provides a wide variety of top-level properties and functions
 to help you debug your app at various points along the
-development cycle. To use these features, you must compile
-in debug mode.  The following list, while not complete,
-highlights some of flags (and one function) from the
+development cycle.
+To use these features, compile your app in debug mode.
+
+The following list highlights some of flags and one function from the
 [rendering library][] for debugging performance issues.
 
-Flutter 提供了各种各样的调试标志和功能，来帮助您在开发周期的不同阶段调试应用。
-想要使用这些特性，必须在调试模式下编译。下面的列表虽然不完整，
-但是突出显示了 [rendering library][] 中用于调试性能问题的一些标志（以及一个函数）。
-
-You can set these flags either by editing the framework code,
-or by importing the module and setting the value in your
-`main()` method, following by a hot restart.
-
-您可以通过修改框架的代码来设置这些标志，或者将模块导入，
-并在 `main()` 方法中设置标志值，然后热重启。
-
-<dl markdown="1">
-<dt markdown="1">[`debugDumpRenderTree()`][]</dt>
-<dd markdown="1">
-<p markdown="1">Call this function when not in a layout or repaint
-  phase to dump the rendering tree to the console.
-  (Pressing **t** from `flutter run` calls this command.)
-  Search for "RepaintBoundary" to see diagnostics
-  on how useful a boundary is.</p>
-<p markdown="1">当不在布局或重新绘制阶段时，调用此函数将 render 树转储到控制台。
-  （可以从 `flutter run`  按下 **t** 调用此命令。）
-  通过搜索其中的「RepaintBoundary」可以查看关于边界的有用诊断信息。</p>
-{% comment %} Feature is not yet added to DevTools:
+[`debugDumpRenderTree()`][]
+: To dump the rendering tree to the console,
+  call this function when not in a layout or repaint phase.
+
+  {% comment %}
+    Feature is not yet added to DevTools:
     Rather than using this flag to dump the render tree
     to a file, view the render tree in the Flutter inspector.
     To do so, bring up the Flutter inspector and select the
-    **Render Tree** tab. {% endcomment %}
-<dt markdown="1">[`debugPaintLayerBordersEnabled`][]</dt>
-<dd markdown="1">PENDING
-<dt markdown="1">[`debugRepaintRainbowEnabled`][]</dt>
-<dd markdown="1">
-<p markdown="1">You can enable this flag in the Flutter
-    inspector by selecting the **Highlight Repaints** button.
-    If any static widgets are rotating through the colors of the rainbow
-    (for example, a static header), those areas are candidates for adding
-    repaint boundaries.</p>
-<p markdown="1">您可以通过点击 **Highlight Repaints** 按钮，
-    在 Flutter inspector 中启用此标志。
-    如果任何静态 widget 在彩虹七颜色之间轮转（比如一个静态标题），
-    那么这些区域就可能需要添加重新绘制边界进行优化。</p>
-<dt markdown="1">[`debugPrintMarkNeedsLayoutStacks`][]</dt>
-<dd markdown="1">
-<p markdown="1">Enable this flag if you're seeing more layouts
-    than you expect (for example, on the timeline, on a profile,
-    or from a `print` statement inside a layout method).
-    Once enabled, the console is flooded with stack traces
-    showing why each render object is being marked dirty for
-    layout. You can use the `debugPrintStack()` method from the
-    `services` library to print your own stack traces on demand,
-    if this kind of approach is useful to you.</p>
-<p markdown="1">如果您看到的布局比预期的要多
-    （比如，在 timeline 、profile 或者一个布局方法中的 `print` 语句中)，
-    可以启用这个标志。一旦启用，控制台将会充满堆栈跟踪，
-    来显示在布局时每个渲染对象被标记为 dirty 的原因。
-    如果有需要的话，您可以使用 `services` 库中的 `debugPrintStack()` 方法
-    按需打印出堆栈的跟踪信息。</p>
-<dt markdown="1">[`debugPrintMarkNeedsPaintStacks`][]</dt>
-<dd markdown="1">
-<p markdown="1">Similar to `debugPrintMarkNeedsLayoutStacks`,
-    but for excess painting. You can use the `debugPrintStack()`
-    method from the `services` library to print your own stack
-    traces on demand, if this kind of approach is useful to you.</p>
-<p markdown="1">它和 `debugPrintMarkNeedsLayoutStacks` 类似，
-    但用于多余的绘制。如果有需要的话，您可以使用 `services` 库中的
-    `debugPrintStack()` 方法按需打印出堆栈的跟踪信息。</p>
-
-### Tracing Dart code performance
-
-### 跟踪 Dart 代码性能
+    **Render Tree** tab.
+  {% endcomment %}
 
-{{site.alert.note}}
+  To set these flags either:
 
-  You can use the DevTools [Timeline events tab][] to perform traces.
-  You can also import and export trace files into the Timeline view,
-  but only files generated by DevTools.
+* edit the framework code
+* import the module, set the value in your `main()` function,
+  then hot restart.
 
-  您可以使用 DevTools 中的 [Timeline 事件图][Timeline events tab] 来执行跟踪。
-  您还可以将跟踪文件导入和导出到 Timeline view 中，但这只支持由 DevTools 生成的文件。
+[`debugPaintLayerBordersEnabled`][]
+: To display the boundaries of each layer, set this property to `true`.
+  When set, each layer paints a box around its boundary.
 
-{{site.alert.end}}
+[`debugRepaintRainbowEnabled`][]
+: To display a colored border around each widget, set this property to `true`.
+  These borders change color as the app user scrolls in the app.
+  To set this flag, add `debugRepaintRainbowEnabled = true;` as a top-level
+  property in your app.
+  If any static widgets rotate through colors after setting this flag,
+  consider adding repaint boundaries to those areas.
 
-To perform custom performance traces programmatically and
-measure wall/CPU time of arbitrary segments of Dart code
-similar to what would be done on Android with [systrace][],
-use `dart:developer` [Timeline][] utilities to wrap the
-code you want to measure such as:
+[`debugPrintMarkNeedsLayoutStacks`][]
+: To determine if your app creates more layouts than expected,
+  set this property to `true`.
+  This layout issue could happen on the timeline, on a profile,
+  or from a `print` statement inside a layout method.
+  When set, the framework outputs stack traces to the console
+  to explain why your app marks each render object to be laid out.
 
-想要以编程方式执行自定义性能跟踪和测量任意代码片段的 wall/CPU 时间，
-这类似于在 Android 上使用 [systrace][]，您可以使用 `dart:developer` 包中的 
-[Timeline][] 类提供的一些静态方法包裹您想测量的代码，比如:
+[`debugPrintMarkNeedsPaintStacks`][]
+: To determine if your app paints more layouts than expected,
+  set this property to `true`.
 
-<?code-excerpt "lib/perf_trace.dart"?>
-```dart
-import 'dart:developer';
+You can generate stack traces on demand as well.
+To print your own stack traces, add the `debugPrintStack()`
+function to your app.
 
-void main() {
-  Timeline.startSync('interesting function');
-  // iWonderHowLongThisTakes();
-  Timeline.finishSync();
-}
-```
+### Trace Dart code performance
 
-Then open DevTools' [Timeline events tab][] while connected to your app, 
-verify the **Dart** recording option is checked in the **Performance settings**,
-and perform the function you want to measure.
+{{site.alert.note}}
+  You can use the DevTools [Timeline events tab][] to perform traces.
+  You can also import and export trace files into the Timeline view,
+  but only files generated by DevTools.
+{{site.alert.end}}
 
-当链接到你的应用上之后，打开发者工具的 [Timeline 事件图][Timeline events tab]。
-确保在 Performance 设置上勾选了 Dart 记录的选项，并执行您想要测量的方法。
+To perform custom performance traces and
+measure wall or CPU time of arbitrary segments of Dart code
+like Android does with [systrace][],
+use `dart:developer` [Timeline][] utilities.
 
-Be sure to run your app in [profile mode][] to ensure that the
-runtime performance characteristics closely match that of your
-final product.
+1. Open your source code.
+1. Wrap the code you want to measure in `Timeline` methods.
 
-确保以 [性能模式][profile mode] 运行您的应用，来确保运行时的性能表现与您的最终产品相近。
+    <?code-excerpt "lib/perf_trace.dart"?>
+    ```dart
+    import 'dart:developer';
 
-## Performance overlay
+    void main() {
+      Timeline.startSync('interesting function');
+      // iWonderHowLongThisTakes();
+      Timeline.finishSync();
+    }
+    ```
 
-## 性能图层
+1. While connected to your app, open DevTools' [Timeline events tab][].
+1. Select the **Dart** recording option in the **Performance settings**.
+1. Perform the function you want to measure.
 
-{{site.alert.note}}
+To ensure that the runtime performance characteristics closely match that
+of your final product, run your app in [profile mode][].
+
+### Add performance overlay
 
+{{site.alert.note}}
   You can toggle display of the performance overlay on
   your app using the **Performance Overlay** button in the
   [Flutter inspector][]. If you prefer to do it in code,
   use the following instructions.
-
-  您可以使用 [Flutter inspector][] 中的 **Performance Overlay** 按钮，
-  来切换显示的应用的性能图层。
-  如果您更喜欢用代码来完成它，请参考下面的说明。
-
 {{site.alert.end}}
 
-You can programmatically enable the PerformanceOverlay widget by
-setting the `showPerformanceOverlay` property to `true` on the
+To enable the `PerformanceOverlay` widget in your code,
+set the `showPerformanceOverlay` property to `true` on the
 [`MaterialApp`][], [`CupertinoApp`][], or [`WidgetsApp`][]
 constructor:
 
-您可以通过编程方式启用 PerformanceOverlay widget，
-在 [`MaterialApp`][]、[`CupertinoApp`][]或 [`WidgetsApp`][] 构造函数中，
-将 `showPerformanceOverlay` 属性设置为 `true` 即可。
+#### Example 10
+{:.no_toc}
 
-<?code-excerpt "lib/performance_overlay.dart (PerfOverlay)" replace="/showPerformanceOverlay: true,/[[highlight]]$&[[\/highlight]]/g"?>
-{% prettify dart %}
+<?code-excerpt "lib/performance_overlay.dart (PerfOverlay)"?>
+```dart
 import 'package:flutter/material.dart';
 
 class MyApp extends StatelessWidget {
@@ -1251,7 +760,7 @@ class MyApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
-      [[highlight]]showPerformanceOverlay: true,[[/highlight]]
+      showPerformanceOverlay: true,
       title: 'My Awesome App',
       theme: ThemeData(
         colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
@@ -1260,101 +769,77 @@ class MyApp extends StatelessWidget {
     );
   }
 }
-{% endprettify %}
+```
 
 (If you're not using `MaterialApp`, `CupertinoApp`,
 or `WidgetsApp`, you can get the same effect by wrapping your
 application in a stack and putting a widget on your stack that was
 created by calling [`PerformanceOverlay.allEnabled()`][].)
 
-（如果您没有使用 `MaterialApp`、`CupertinoApp` 或 `WidgetsApp`，可以通过将应用包装在一个 Stack 中，
-并通过调用 [`PerformanceOverlay.allEnabled()`][] 来创建一个 widget，来获得相同的效果。）
-
-For information on how to interpret the graphs in the overlay,
-see [The performance overlay][] in
+To learn how to interpret the graphs in the overlay,
+check out [The performance overlay][] in
 [Profiling Flutter performance][].
 
-有关如何解释浮层中的图形的信息，可以参见
-[Flutter 性能分析][Profiling Flutter performance]
-中的 [性能图层][The performance overlay]。
-
-## Widget alignment grid
+## Add widget alignment grid
 
-## Widget 对齐网格
-
-You can programmatically overlay a
-[Material Design baseline grid][] on top of your app to
-help verify alignments by using the
-`debugShowMaterialGrid` argument in the
+To add an overlay to a [Material Design baseline grid][] on your app to
+help verify alignments, add the `debugShowMaterialGrid` argument in the
 [`MaterialApp` constructor][].
 
-您可以通过编程的方式将 [Material Design 基线网格][Material Design baseline grid]
-覆盖在应用的顶层来辅助对齐校验，通过使用 [`MaterialApp` 构造函数][`MaterialApp` constructor]
-中的 `debugShowMaterialGrid` 参数进行设置。
-
-In non-Material applications, you can achieve a similar
-effect by using a [`GridPaper`][] widget directly.
-
-在非 Material 应用中，您可以通过直接使用 [`GridPaper`][] widget 来达到类似的效果。
+To add an overlay to non-Material applications, add a [`GridPaper`][] widget.
 
+[Debugger]: {{site.url}}/tools/devtools/debugger
+[Debugging]: {{site.url}}/testing/debugging
+[DevTools]: {{site.url}}/tools/devtools
+[DiagnosticsProperty]: {{site.api}}/flutter/foundation/DiagnosticsProperty-class.html
+[Flutter inspector]: {{site.url}}/tools/devtools/inspector
+[Inspector view]: {{site.url}}/tools/devtools/inspector
+[Logging view]: {{site.url}}/tools/devtools/logging
+[Material Design baseline grid]: {{site.material}}/foundations/layout/understanding-layout/spacing
+[Profiling Flutter performance]: {{site.url}}/perf/ui-performance
+[The performance overlay]: {{site.url}}/perf/ui-performance#the-performance-overlay
+[Timeline events tab]: {{site.url}}/tools/devtools/performance#timeline-events-tab
+[Timeline]: {{site.dart.api}}/stable/dart-developer/Timeline-class.html
+[`Center`]: {{site.api}}/flutter/widgets/Center-class.html
+[`CupertinoApp`]: {{site.api}}/flutter/cupertino/CupertinoApp-class.html
+[`Focus`]: {{site.api}}/flutter/widgets/Focus-class.html
 [`GridPaper`]: {{site.api}}/flutter/widgets/GridPaper-class.html
-[Material Design]: {{site.material}}/styles
 [`MaterialApp` constructor]: {{site.api}}/flutter/material/MaterialApp/MaterialApp.html
-[Material Design baseline grid]: {{site.material}}/foundations/layout/understanding-layout/spacing
 [`MaterialApp`]: {{site.api}}/flutter/material/MaterialApp/MaterialApp.html
-[`WidgetsApp`]: {{site.api}}/flutter/widgets/WidgetsApp-class.html
-[`CupertinoApp`]: {{site.api}}/flutter/cupertino/CupertinoApp-class.html
+[`Material`]: {{site.api}}/flutter/material/Material-class.html
 [`PerformanceOverlay.allEnabled()`]: {{site.api}}/flutter/widgets/PerformanceOverlay/PerformanceOverlay.allEnabled.html
-[tracing tool]: https://www.chromium.org/developers/how-tos/trace-event-profiling-tool
-[systrace]: {{site.android-dev}}/studio/profile/systrace
-[Timeline]: {{site.dart.api}}/stable/dart-developer/Timeline-class.html
-[`timeDilation`]: {{site.api}}/flutter/scheduler/timeDilation.html
-[`Focus`]: {{site.api}}/flutter/widgets/Focus-class.html
+[`RenderParagraph`]: {{site.api}}/flutter/rendering/RenderParagraph-class.html
+[`RenderPositionedBox`]: {{site.api}}/flutter/rendering/RenderPositionedBox-class.html
+[`TextButton`]: {{site.api}}/flutter/material/TextButton-class.html
+[`WidgetsApp`]: {{site.api}}/flutter/widgets/WidgetsApp-class.html
+[`_InkFeatures`]: {{site.api}}/flutter/material/InkFeature-class.html
+[`debugDumpApp()`]: {{site.api}}/flutter/widgets/debugDumpApp.html
+[`debugDumpFocusTree()`]: {{site.api}}/flutter/widgets/debugDumpFocusTree.html
+[`debugDumpLayerTree()`]: {{site.api}}/flutter/rendering/debugDumpLayerTree.html
+[`debugDumpRenderTree()`]: {{site.api}}/flutter/rendering/debugDumpRenderTree.html
+[`debugDumpSemanticsTree()`]: {{site.api}}/flutter/rendering/debugDumpSemanticsTree.html
+[`debugFocusChanges`]: {{site.api}}/flutter/widgets/debugFocusChanges.html
 [`debugLabel`]: {{site.api}}/flutter/widgets/Focus/debugLabel.html
-[`debugPrintMarkNeedsLayoutStacks`]: {{site.api}}/flutter/rendering/debugPrintMarkNeedsLayoutStacks.html
-[`debugPrintMarkNeedsPaintStacks`]: {{site.api}}/flutter/rendering/debugPrintMarkNeedsPaintStacks.html
-[`debugRepaintRainbowEnabled`]: {{site.api}}/flutter/rendering/debugRepaintRainbowEnabled.html
+[`debugPaintBaselinesEnabled`]: {{site.api}}/flutter/rendering/debugPaintBaselinesEnabled.html
 [`debugPaintLayerBordersEnabled`]: {{site.api}}/flutter/rendering/debugPaintLayerBordersEnabled.html
 [`debugPaintPointersEnabled`]: {{site.api}}/flutter/rendering/debugPaintPointersEnabled.html
-[`debugPaintBaselinesEnabled`]: {{site.api}}/flutter/rendering/debugPaintBaselinesEnabled.html
 [`debugPaintSizeEnabled`]: {{site.api}}/flutter/rendering/debugPaintSizeEnabled.html
-[`debugPrintScheduleFrameStacks`]: {{site.api}}/flutter/scheduler/debugPrintScheduleFrameStacks.html
+[`debugPrint()`]: {{site.api}}/flutter/foundation/debugPrint.html
 [`debugPrintBeginFrameBanner`]: {{site.api}}/flutter/scheduler/debugPrintBeginFrameBanner.html
 [`debugPrintEndFrameBanner`]: {{site.api}}/flutter/scheduler/debugPrintEndFrameBanner.html
-[`debugFocusChanges`]: {{site.api}}/flutter/widgets/debugFocusChanges.html
-[`debugDumpSemanticsTree()`]: {{site.api}}/flutter/rendering/debugDumpSemanticsTree.html
-[`debugDumpRenderTree()`]: {{site.api}}/flutter/rendering/debugDumpRenderTree.html
-[`debugDumpLayerTree()`]: {{site.api}}/flutter/rendering/debugDumpLayerTree.html
-[`debugDumpFocusTree()`]: {{site.api}}/flutter/widgets/debugDumpFocusTree.html
-[`debugDumpApp()`]: {{site.api}}/flutter/widgets/debugDumpApp.html
-[`debugPrint()`]: {{site.api}}/flutter/foundation/debugPrint.html
-[`RenderParagraph`]: {{site.api}}/flutter/rendering/RenderParagraph-class.html
-[`RenderPositionedBox`]: {{site.api}}/flutter/rendering/RenderPositionedBox-class.html
-[`Center`]: {{site.api}}/flutter/widgets/Center-class.html
-[`RenderPadding`]: {{site.api}}/flutter/rendering/RenderPadding-class.html
-[`RenderConstrainedBox`]: {{site.api}}/flutter/rendering/RenderConstrainedBox-class.html
-[`TextButton`]: {{site.api}}/flutter/material/TextButton-class.html
-[frame callback]: {{site.api}}/flutter/scheduler/SchedulerBinding/addPersistentFrameCallback.html
-[render-fill]: {{site.api}}/flutter/rendering/Layer/debugFillProperties.html
-[widget-fill]: {{site.api}}/flutter/widgets/Widget/debugFillProperties.html
-[DiagnosticsProperty]: {{site.api}}/flutter/foundation/DiagnosticsProperty-class.html
+[`debugPrintMarkNeedsLayoutStacks`]: {{site.api}}/flutter/rendering/debugPrintMarkNeedsLayoutStacks.html
+[`debugPrintMarkNeedsPaintStacks`]: {{site.api}}/flutter/rendering/debugPrintMarkNeedsPaintStacks.html
+[`debugPrintScheduleFrameStacks`]: {{site.api}}/flutter/scheduler/debugPrintScheduleFrameStacks.html
+[`debugRepaintRainbowEnabled`]: {{site.api}}/flutter/rendering/debugRepaintRainbowEnabled.html
+[`log()`]: {{site.api}}/flutter/dart-developer/log.html
 [`setState()`]: {{site.api}}/flutter/widgets/State/setState.html
-[`InkFeature`]: {{site.api}}/flutter/material/InkFeature-class.html
-[`Material`]: {{site.api}}/flutter/material/Material-class.html
-[Flutter's modes]: {{site.url}}/testing/build-modes
-[profile mode]: {{site.url}}/testing/build-modes#profile
+[`timeDilation`]: {{site.api}}/flutter/scheduler/timeDilation.html
 [debug mode]: {{site.url}}/testing/build-modes#debug
-[release mode]: {{site.url}}/testing/build-modes#release
-[DevTools]: {{site.url}}/tools/devtools
-[Flutter inspector]: {{site.url}}/tools/devtools/inspector
-[Logging view]: {{site.url}}/tools/devtools/logging
-[Flutter enabled IDE/editor]: {{site.url}}/get-started/editor
-[`log()`]: {{site.api}}/flutter/dart-developer/log.html
-[Timeline events tab]: {{site.url}}/tools/devtools/performance#timeline-events-tab
-[Debugger]: {{site.url}}/tools/devtools/debugger
-[Inspector view]: {{site.url}}/tools/devtools/inspector
-[The performance overlay]: {{site.url}}/perf/ui-performance#the-performance-overlay
-[Profiling Flutter performance]: {{site.url}}/perf/ui-performance
-[Debugging]: {{site.url}}/testing/debugging
 [file an issue]: {{site.github}}/flutter/devtools/issues
+[frame callback]: {{site.api}}/flutter/scheduler/SchedulerBinding/addPersistentFrameCallback.html
+[profile mode]: {{site.url}}/testing/build-modes#profile
+[render-fill]: {{site.api}}/flutter/rendering/Layer/debugFillProperties.html
 [rendering library]: {{site.api}}/flutter/rendering/rendering-library.html
+[systrace]: {{site.android-dev}}/studio/profile/systrace
+[widget-fill]: {{site.api}}/flutter/widgets/Widget/debugFillProperties.html
+[`BoxConstraints`]: {{site.api}}/flutter/rendering/BoxConstraints-class.html
\ No newline at end of file
diff --git a/src/testing/common-errors.md b/src/testing/common-errors.md
index e59da9713f..baf637bc0f 100644
--- a/src/testing/common-errors.md
+++ b/src/testing/common-errors.md
@@ -7,6 +7,8 @@ tags: 测试
 keywords: flutter报错,A RenderFlex overflowed,An InputDecorator cannot have an unbounded width
 ---
 
+{% include docs/yt_shims.liquid %}
+
 <?code-excerpt path-base="testing/common_errors"?>
 
 ## Introduction
@@ -17,10 +19,10 @@ on how to resolve them.
 This is a living document with more errors to be added in
 future revisions, and your contributions are welcomed.
 Feel free to [open an issue][] or [submit a pull request][] to
-make this page more useful to you and the Flutter community. 
+make this page more useful to you and the Flutter community.
 
-[open an issue]: {{site.github}}/flutter/website/issues/new/choose
-[submit a pull request]: {{site.github}}/flutter/website/pulls
+[open an issue]: {{site.repo.this}}/issues/new/choose
+[submit a pull request]: {{site.repo.this}}/pulls
 
 ## 'A RenderFlex overflowed…'
 
@@ -32,7 +34,7 @@ and you've probably run into it already.
 
 When it happens, yellow and black stripes appear,
 indicating the area of overflow in the app UI.
-In addition, an error message displays in the debug console: 
+In addition, an error message displays in the debug console:
 
 ```
 The following assertion was thrown during layout:
@@ -40,7 +42,7 @@ A RenderFlex overflowed by 1146 pixels on the right.
 
 The relevant error-causing widget was
 
-    Row 	    lib/errors/renderflex_overflow_column.dart:23
+    Row      lib/errors/renderflex_overflow_column.dart:23
 
 The overflowing RenderFlex has an orientation of Axis.horizontal.
 The edge of the RenderFlex that is overflowing has been marked in the rendering 
@@ -134,26 +136,26 @@ on the `Flexible` widget.
 
 **Further information:**
 
-The resources linked below provide further information about this error. 
+The resources linked below provide further information about this error.
 
 * [Flexible (Flutter Widget of the Week)][flexible-video]
 * [How to debug layout issues with the Flutter Inspector][medium-article]
 * [Understanding constraints][]
 
 [its source code]: {{site.repo.flutter}}/blob/c8e42b47f5ea8b5ff7bf2f2b0a2a8e765f1aa51d/packages/flutter/lib/src/widgets/basic.dart#L5166-L5174
-[flexible-video]: {{site.youtube-site}}/watch?v=CI7x0mAZiY0
+[flexible-video]: {{yt-watch}}?v=CI7x0mAZiY0
 [medium-article]: {{site.flutter-medium}}/how-to-debug-layout-issues-with-the-flutter-inspector-87460a7b9db#738b
 [Understanding constraints]: {{site.url}}/ui/layout/constraints
 
 ## 'RenderBox was not laid out'
 
 While this error is pretty common,
-it's often a side effect of a primary error 
+it's often a side effect of a primary error
 occurring earlier in the rendering pipeline.
 
 **What does the error look like?**
 
-The message shown by the error looks like this: 
+The message shown by the error looks like this:
 
 ```
 RenderBox was not laid out: 
@@ -166,7 +168,7 @@ Usually, the issue is related to violation of box constraints,
 and it needs to be solved by providing more information
 to Flutter about how you'd like to constrain the widgets in question.
 You can learn more about how constraints work
-in Flutter on the [Understanding constraints][] page. 
+in Flutter on the [Understanding constraints][] page.
 
 The `RenderBox was not laid out` error is often
 caused by one of two other errors:
@@ -175,14 +177,15 @@ caused by one of two other errors:
 * 'An InputDecorator...cannot have an unbounded width'
 
 <a id="unbounded"></a>
+
 ## 'Vertical viewport was given unbounded height'
 
-This is another common layout error you could run into 
+This is another common layout error you could run into
 while creating a UI in your Flutter app.
 
 **What does the error look like?**
 
-The message shown by the error looks like this: 
+The message shown by the error looks like this:
 
 ```
 The following assertion was thrown during performResize():
@@ -205,7 +208,7 @@ unless it's constrained by its parent widget.
 However, a `Column` doesn't impose any constraint
 on its children's height by default.
 The combination of the two behaviors leads to the failure of
-determining the size of the `ListView`. 
+determining the size of the `ListView`.
 
 <?code-excerpt "lib/unbounded_height.dart (Problem)"?>
 ```dart
@@ -279,11 +282,11 @@ further information about this error.
 
 The error message suggests that it's also related
 to box constraints, which are important to understand
-to avoid many of the most common Flutter framework errors. 
+to avoid many of the most common Flutter framework errors.
 
 **What does the error look like?**
 
-The message shown by the error looks like this: 
+The message shown by the error looks like this:
 
 ```
 The following assertion was thrown during performLayout():
@@ -351,7 +354,7 @@ This error is about missing an expected parent widget.
 
 **What does the error look like?**
 
-The message shown by the error looks like this: 
+The message shown by the error looks like this:
 
 ```
 The following assertion was thrown while looking for parent data:
@@ -367,7 +370,7 @@ While Flutter's widgets are generally flexible
 in how they can be composed together in a UI,
 a small subset of those widgets expect specific parent widgets.
 When this expectation can't be satisfied in your widget tree,
-you're likely to encounter this error. 
+you're likely to encounter this error.
 
 Here is an _incomplete_ list of widgets that expect
 specific parent widgets within the Flutter framework.
@@ -384,13 +387,13 @@ the top right corner of the page) to expand this list.
 **How to fix it?**
 
 The fix should be obvious once you know
-which parent widget is missing. 
+which parent widget is missing.
 
 ## 'setState called during build'
 
 The `build` method in your Flutter code isn't
 a good place to call `setState`,
-either directly or indirectly. 
+either directly or indirectly.
 
 **What does the error look like?**
 
@@ -411,7 +414,7 @@ is already in the process of building widgets.
 **How might you run into the error?**
 
 In general, this error occurs when the `setState`
-method is called within the `build` method. 
+method is called within the `build` method.
 
 A common scenario where this error occurs is when
 attempting to trigger a `Dialog` from within the
@@ -507,15 +510,13 @@ For more information and to learn how to fix,
 check out the following video on
 [`PrimaryScrollController`][controller-video]:
 
-[controller-video]: <iframe width="560" height="315" src="https://www.youtube.com/embed/33_0ABjFJUU" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>`
-
-[`PrimaryScrollController`]: {{site.api}}/flutter/widgets/PrimaryScrollController-class.html
+[controller-video]: <iframe width="560" height="315" src="{{yt-embed}}/33_0ABjFJUU" title="Learn about the PrimaryScrollController Flutter Widget" {{yt-set}}></iframe>`
 
 ## References
 
 To learn more about how to debug errors,
-especially layout errors in Flutter, 
-check out the following resources: 
+especially layout errors in Flutter,
+check out the following resources:
 
 * [How to debug layout issues with the Flutter Inspector][medium-article]
 * [Understanding constraints][]
diff --git a/src/testing/debugging.md b/src/testing/debugging.md
index fd1e1342a7..52bad1d842 100644
--- a/src/testing/debugging.md
+++ b/src/testing/debugging.md
@@ -39,7 +39,7 @@ Flutter applications. Here are some of the available tools:
   check out [`flutter_gdb`][].
 
 
-[`flutter_gdb`]: https://github.com/flutter/engine/blob/main/sky/tools/flutter_gdb
+[`flutter_gdb`]: {{site.repo.engine}}/blob/main/sky/tools/flutter_gdb
 
 ## Other resources
 
diff --git a/src/testing/integration-tests/index.md b/src/testing/integration-tests/index.md
index 243b806c86..1a7c879e7c 100644
--- a/src/testing/integration-tests/index.md
+++ b/src/testing/integration-tests/index.md
@@ -194,6 +194,12 @@ void main() {
 
 {{site.alert.end}}
 
+If you are looking for more examples, take a look at the [testing_app][] of
+the [samples][] repository.
+
+如果你想了解更多示例，
+请查看 [samples][] 中的 [testing_app][]。
+
 ### Directory structure
 
 ### 目录结构
@@ -476,4 +482,6 @@ from the command line.
 [iOS Device Testing]: {{site.repo.flutter}}/tree/main/packages/integration_test#ios-device-testing
 [Migrating from flutter_drive]: {{site.url}}/release/breaking-changes/flutter-driver-migration
 [Running Flutter driver tests with web]: {{site.repo.flutter}}/wiki/Running-Flutter-Driver-tests-with-Web
+[samples]: {{site.repo.samples}}
+[testing_app]: {{site.repo.samples}}/tree/main/testing_app/integration_test
 [widget tests]: {{site.url}}/testing/overview#widget-tests
diff --git a/src/testing/overview.md b/src/testing/overview.md
index 4ab91a0594..59a16f5763 100644
--- a/src/testing/overview.md
+++ b/src/testing/overview.md
@@ -35,7 +35,6 @@ seen below.
 | **Execution speed**  | Quick  | Quick  | Slow        |
 {:.table.table-striped}
 
-
 ## Unit tests
 
 A _unit test_ tests a single function, method, or class.
@@ -46,8 +45,8 @@ External dependencies of the unit under test are generally
 Unit tests generally don't read from or write
 to disk, render to screen, or receive user actions from
 outside the process running the test.
-For more information regarding unit tests, 
-you can view the following recipes 
+For more information regarding unit tests,
+you can view the following recipes
 or run `flutter test --help` in your terminal.
 
 {{site.alert.note}}
@@ -123,13 +122,11 @@ integration services, see the following:
 * [Codemagic CI/CD for Flutter][]
 * [Flutter CI/CD with Bitrise][]
 
-
 [code coverage]: https://en.wikipedia.org/wiki/Code_coverage
 [Codemagic CI/CD for Flutter]: https://blog.codemagic.io/getting-started-with-codemagic/
 [Continuous delivery using fastlane with Flutter]: {{site.url}}/deployment/cd#fastlane
 [Flutter CI/CD with Bitrise]: https://devcenter.bitrise.io/en/getting-started/getting-started-with-flutter-apps
 [How to test a Flutter app]: {{site.codelabs}}/codelabs/flutter-app-testing
-[mocked out]: {{site.url}}/cookbook/testing/unit/mocking
 [Test Flutter apps on Appcircle]: https://blog.appcircle.io/article/flutter-ci-cd-github-ios-android-web#
 [Test Flutter apps on Cirrus]: https://cirrus-ci.org/examples/#flutter
 [Test Flutter apps on Travis]: {{site.flutter-medium}}/test-flutter-apps-on-travis-3fd5142ecd8c
diff --git a/src/testing/testing-plugins.md b/src/testing/testing-plugins.md
index d3bfffa610..2cda9a9eda 100644
--- a/src/testing/testing-plugins.md
+++ b/src/testing/testing-plugins.md
@@ -86,7 +86,7 @@ so can be useful if your plugin can't be tested without
 native UI interactions.
 
 
-[Espresso]: {{site.github}}/flutter/packages/tree/main/packages/espresso
+[Espresso]: {{site.repo.packages}}/tree/main/packages/espresso
 [GoogleTest]: {{site.github}}/google/googletest
 [integration tests]: {{site.url}}/cookbook/testing/integration/introduction
 [JUnit]: {{site.github}}/junit-team/junit4/wiki/Getting-started
@@ -95,8 +95,8 @@ native UI interactions.
 [unit tests]: {{site.url}}/cookbook/testing/unit/introduction
 [widget tests]: {{site.url}}/cookbook/testing/widget/introduction
 [won't be loaded]: {{site.url}}/testing/plugins-in-tests
-[XCTest]: https://developer.apple.com/documentation/xctest
-[XCUITest]: https://developer.apple.com/library/archive/documentation/DeveloperTools/Conceptual/testing_with_xcode/chapters/09-ui_testing.html
+[XCTest]: {{site.apple-dev}}/documentation/xctest
+[XCUITest]: {{site.apple-dev}}/library/archive/documentation/DeveloperTools/Conceptual/testing_with_xcode/chapters/09-ui_testing.html
 
 ## Running tests
 
@@ -202,8 +202,8 @@ Some extra considerations for plugin testing:
   * Dart unit tests that mock the platform channel,
     then call the plugin's public API and validate the results.
 
-[Android Studio test UI]: https://developer.android.com/studio/test/test-in-android-studio
+[Android Studio test UI]: {{site.android-dev}}/studio/test/test-in-android-studio
 [general advice]: {{site.url}}/testing/overview
 [Visual Studio test UI]: https://learn.microsoft.com/en-us/visualstudio/test/getting-started-with-unit-testing?view=vs-2022&tabs=dotnet%2Cmstest#run-unit-tests
-[Xcode Test UI]: https://developer.apple.com/library/archive/documentation/DeveloperTools/Conceptual/testing_with_xcode/chapters/05-running_tests.html
+[Xcode Test UI]: {{site.apple-dev}}/library/archive/documentation/DeveloperTools/Conceptual/testing_with_xcode/chapters/05-running_tests.html
 
diff --git a/src/testing/trees/focus-tree.md b/src/testing/trees/focus-tree.md
new file mode 100644
index 0000000000..8eb112b153
--- /dev/null
+++ b/src/testing/trees/focus-tree.md
@@ -0,0 +1,73 @@
+```nocode
+flutter: FocusManager#9d096
+flutter:  │ primaryFocus: FocusScopeNode#926dc(_ModalScopeState<dynamic>
+flutter:  │   Focus Scope [PRIMARY FOCUS])
+flutter:  │ primaryFocusCreator: FocusScope ← PrimaryScrollController ←
+flutter:  │   _ActionsScope ← Actions ← Builder ← PageStorage ← Offstage ←
+flutter:  │   _ModalScopeStatus ← UnmanagedRestorationScope ←
+flutter:  │   RestorationScope ← AnimatedBuilder ←
+flutter:  │   _ModalScope<dynamic>-[LabeledGlobalKey<_ModalScopeState<dynamic>>#bd53e]
+flutter:  │   ← Semantics ← _RenderTheaterMarker ← _EffectiveTickerMode ←
+flutter:  │   TickerMode ←
+flutter:  │   _OverlayEntryWidget-[LabeledGlobalKey<_OverlayEntryWidgetState>#89dd7]
+flutter:  │   ← _Theater ← Overlay-[LabeledGlobalKey<OverlayState>#52f82] ←
+flutter:  │   UnmanagedRestorationScope ← ⋯
+flutter:  │
+flutter:  └─rootScope: FocusScopeNode#f4205(Root Focus Scope [IN FOCUS PATH])
+flutter:    │ IN FOCUS PATH
+flutter:    │ focusedChildren: FocusScopeNode#a0d10(Navigator Scope [IN FOCUS
+flutter:    │   PATH])
+flutter:    │
+flutter:    └─Child 1: FocusNode#088ec([IN FOCUS PATH])
+flutter:      │ context: Focus
+flutter:      │ NOT FOCUSABLE
+flutter:      │ IN FOCUS PATH
+flutter:      │
+flutter:      └─Child 1: FocusNode#85f70(Shortcuts [IN FOCUS PATH])
+flutter:        │ context: Focus
+flutter:        │ NOT FOCUSABLE
+flutter:        │ IN FOCUS PATH
+flutter:        │
+flutter:        └─Child 1: FocusNode#f0c18(Shortcuts [IN FOCUS PATH])
+flutter:          │ context: Focus
+flutter:          │ NOT FOCUSABLE
+flutter:          │ IN FOCUS PATH
+flutter:          │
+flutter:          └─Child 1: FocusNode#0749f(Shortcuts [IN FOCUS PATH])
+flutter:            │ context: Focus
+flutter:            │ NOT FOCUSABLE
+flutter:            │ IN FOCUS PATH
+flutter:            │
+flutter:            └─Child 1: _FocusTraversalGroupNode#28990(FocusTraversalGroup [IN FOCUS PATH])
+flutter:              │ context: Focus
+flutter:              │ NOT FOCUSABLE
+flutter:              │ IN FOCUS PATH
+flutter:              │
+flutter:              └─Child 1: FocusNode#5b515(Shortcuts [IN FOCUS PATH])
+flutter:                │ context: Focus
+flutter:                │ NOT FOCUSABLE
+flutter:                │ IN FOCUS PATH
+flutter:                │
+flutter:                └─Child 1: FocusScopeNode#a0d10(Navigator Scope [IN FOCUS PATH])
+flutter:                  │ context: FocusScope
+flutter:                  │ IN FOCUS PATH
+flutter:                  │ focusedChildren: FocusScopeNode#926dc(_ModalScopeState<dynamic>
+flutter:                  │   Focus Scope [PRIMARY FOCUS])
+flutter:                  │
+flutter:                  └─Child 1: _FocusTraversalGroupNode#72c8a(FocusTraversalGroup [IN FOCUS PATH])
+flutter:                    │ context: Focus
+flutter:                    │ NOT FOCUSABLE
+flutter:                    │ IN FOCUS PATH
+flutter:                    │
+flutter:                    └─Child 1: FocusNode#eb709(Navigator [IN FOCUS PATH])
+flutter:                      │ context: Focus
+flutter:                      │ IN FOCUS PATH
+flutter:                      │
+flutter:                      └─Child 1: FocusScopeNode#926dc(_ModalScopeState<dynamic> Focus Scope [PRIMARY FOCUS])
+flutter:                        │ context: FocusScope
+flutter:                        │ PRIMARY FOCUS
+flutter:                        │
+flutter:                        └─Child 1: FocusNode#a6b74
+flutter:                            context: Focus
+flutter:
+```
diff --git a/src/testing/trees/layer-tree.md b/src/testing/trees/layer-tree.md
new file mode 100644
index 0000000000..4f20067241
--- /dev/null
+++ b/src/testing/trees/layer-tree.md
@@ -0,0 +1,52 @@
+```nocode
+flutter: TransformLayer#214da
+flutter:  │ owner: RenderView#ebaaf
+flutter:  │ creator: [root]
+flutter:  │ engine layer: TransformEngineLayer#535de
+flutter:  │ handles: 1
+flutter:  │ offset: Offset(0.0, 0.0)
+flutter:  │ transform:
+flutter:  │   [0] 1.0,0.0,0.0,0.0
+flutter:  │   [1] 0.0,1.0,0.0,0.0
+flutter:  │   [2] 0.0,0.0,1.0,0.0
+flutter:  │   [3] 0.0,0.0,0.0,1.0
+flutter:  │
+flutter:  ├─child 1: OffsetLayer#0f766
+flutter:  │ │ creator: RepaintBoundary ← _FocusInheritedScope ← Semantics ←
+flutter:  │ │   FocusScope ← PrimaryScrollController ← _ActionsScope ← Actions
+flutter:  │ │   ← Builder ← PageStorage ← Offstage ← _ModalScopeStatus ←
+flutter:  │ │   UnmanagedRestorationScope ← ⋯
+flutter:  │ │ engine layer: OffsetEngineLayer#1768d
+flutter:  │ │ handles: 2
+flutter:  │ │ offset: Offset(0.0, 0.0)
+flutter:  │ │
+flutter:  │ ├─child 1: PictureLayer#dd023
+flutter:  │ │   handles: 1
+flutter:  │ │   paint bounds: Rect.fromLTRB(0.0, 0.0, 800.0, 600.0)
+flutter:  │ │   picture: _NativePicture#36f94
+flutter:  │ │   raster cache hints: isComplex = false, willChange = false
+flutter:  │ │
+flutter:  │ └─child 2: OffsetLayer#4cfc8
+flutter:  │   │ creator: RepaintBoundary-[GlobalKey#bd5d9] ← IgnorePointer ←
+flutter:  │   │   AnimatedBuilder ← Stack ←
+flutter:  │   │   _CupertinoBackGestureDetector<dynamic> ← DecoratedBox ←
+flutter:  │   │   DecoratedBoxTransition ← FractionalTranslation ←
+flutter:  │   │   SlideTransition ← FractionalTranslation ← SlideTransition ←
+flutter:  │   │   CupertinoPageTransition ← ⋯
+flutter:  │   │ engine layer: OffsetEngineLayer#a1676
+flutter:  │   │ handles: 2
+flutter:  │   │ offset: Offset(0.0, 0.0)
+flutter:  │   │
+flutter:  │   └─child 1: PictureLayer#aee55
+flutter:  │       handles: 1
+flutter:  │       paint bounds: Rect.fromLTRB(0.0, 0.0, 800.0, 600.0)
+flutter:  │       picture: _NativePicture#e732d
+flutter:  │       raster cache hints: isComplex = false, willChange = false
+flutter:  │
+flutter:  └─child 2: PictureLayer#b16e5
+flutter:      handles: 1
+flutter:      paint bounds: Rect.fromLTRB(0.0, 0.0, 800.0, 600.0)
+flutter:      picture: _NativePicture#eef0a
+flutter:      raster cache hints: isComplex = false, willChange = false
+flutter:
+```
diff --git a/src/testing/trees/render-tree.md b/src/testing/trees/render-tree.md
new file mode 100644
index 0000000000..bcf1e14603
--- /dev/null
+++ b/src/testing/trees/render-tree.md
@@ -0,0 +1,604 @@
+```nocode
+flutter: RenderView#02c80
+flutter:  │ debug mode enabled - macos
+flutter:  │ view size: Size(800.0, 600.0) (in physical pixels)
+flutter:  │ device pixel ratio: 1.0 (physical pixels per logical pixel)
+flutter:  │ configuration: Size(800.0, 600.0) at 1.0x (in logical pixels)
+flutter:  │
+flutter:  └─child: RenderSemanticsAnnotations#fe6b5
+flutter:    │ needs compositing
+flutter:    │ creator: Semantics ← _FocusInheritedScope ← Focus ←
+flutter:    │   HeroControllerScope ← ScrollConfiguration ← MaterialApp ←
+flutter:    │   MediaQuery ← _MediaQueryFromView ← _ViewScope ←
+flutter:    │   View-[GlobalObjectKey FlutterView#6cffa] ← [root]
+flutter:    │ parentData: <none>
+flutter:    │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:    │ size: Size(800.0, 600.0)
+flutter:    │
+flutter:    └─child: RenderSemanticsAnnotations#6edef
+flutter:      │ needs compositing
+flutter:      │ creator: Semantics ← _FocusInheritedScope ← Focus ← Shortcuts ←
+flutter:      │   _SharedAppModel ← SharedAppData ← UnmanagedRestorationScope ←
+flutter:      │   RestorationScope ← UnmanagedRestorationScope ←
+flutter:      │   RootRestorationScope ← WidgetsApp-[GlobalObjectKey
+flutter:      │   _MaterialAppState#5c303] ← Semantics ← ⋯
+flutter:      │ parentData: <none> (can use size)
+flutter:      │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:      │ size: Size(800.0, 600.0)
+flutter:      │
+flutter:      └─child: RenderSemanticsAnnotations#e8ce8
+flutter:        │ needs compositing
+flutter:        │ creator: Semantics ← _FocusInheritedScope ← Focus ← Shortcuts ←
+flutter:        │   DefaultTextEditingShortcuts ← Semantics ← _FocusInheritedScope
+flutter:        │   ← Focus ← Shortcuts ← _SharedAppModel ← SharedAppData ←
+flutter:        │   UnmanagedRestorationScope ← ⋯
+flutter:        │ parentData: <none> (can use size)
+flutter:        │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:        │ size: Size(800.0, 600.0)
+flutter:        │
+flutter:        └─child: RenderSemanticsAnnotations#fc545
+flutter:          │ needs compositing
+flutter:          │ creator: Semantics ← _FocusInheritedScope ← Focus ← Shortcuts ←
+flutter:          │   Semantics ← _FocusInheritedScope ← Focus ← Shortcuts ←
+flutter:          │   DefaultTextEditingShortcuts ← Semantics ← _FocusInheritedScope
+flutter:          │   ← Focus ← ⋯
+flutter:          │ parentData: <none> (can use size)
+flutter:          │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:          │ size: Size(800.0, 600.0)
+flutter:          │
+flutter:          └─child: RenderTapRegionSurface#ff857
+flutter:            │ needs compositing
+flutter:            │ creator: TapRegionSurface ← _FocusInheritedScope ← Focus ←
+flutter:            │   FocusTraversalGroup ← _ActionsScope ← Actions ← Semantics ←
+flutter:            │   _FocusInheritedScope ← Focus ← Shortcuts ← Semantics ←
+flutter:            │   _FocusInheritedScope ← ⋯
+flutter:            │ parentData: <none> (can use size)
+flutter:            │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:            │ size: Size(800.0, 600.0)
+flutter:            │ behavior: deferToChild
+flutter:            │
+flutter:            └─child: RenderSemanticsAnnotations#fe316
+flutter:              │ needs compositing
+flutter:              │ creator: Semantics ← _FocusInheritedScope ← Focus ← Shortcuts ←
+flutter:              │   _ShortcutRegistrarScope ← ShortcutRegistrar ← TapRegionSurface
+flutter:              │   ← _FocusInheritedScope ← Focus ← FocusTraversalGroup ←
+flutter:              │   _ActionsScope ← Actions ← ⋯
+flutter:              │ parentData: <none> (can use size)
+flutter:              │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:              │ size: Size(800.0, 600.0)
+flutter:              │
+flutter:              └─child: RenderSemanticsAnnotations#fa55c
+flutter:                │ needs compositing
+flutter:                │ creator: Semantics ← Localizations ← Semantics ←
+flutter:                │   _FocusInheritedScope ← Focus ← Shortcuts ←
+flutter:                │   _ShortcutRegistrarScope ← ShortcutRegistrar ← TapRegionSurface
+flutter:                │   ← _FocusInheritedScope ← Focus ← FocusTraversalGroup ← ⋯
+flutter:                │ parentData: <none> (can use size)
+flutter:                │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                │ size: Size(800.0, 600.0)
+flutter:                │
+flutter:                └─child: RenderCustomPaint#4b256
+flutter:                  │ needs compositing
+flutter:                  │ creator: CustomPaint ← Banner ← CheckedModeBanner ← Title ←
+flutter:                  │   Directionality ← _LocalizationsScope-[GlobalKey#4a3aa] ←
+flutter:                  │   Semantics ← Localizations ← Semantics ← _FocusInheritedScope ←
+flutter:                  │   Focus ← Shortcuts ← ⋯
+flutter:                  │ parentData: <none> (can use size)
+flutter:                  │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                  │ size: Size(800.0, 600.0)
+flutter:                  │ painter: null
+flutter:                  │ foregroundPainter: BannerPainter#1bfd7(Instance of
+flutter:                  │   '_SystemFontsNotifier')
+flutter:                  │
+flutter:                  └─child: RenderSemanticsAnnotations#f470f
+flutter:                    │ needs compositing
+flutter:                    │ creator: Semantics ← FocusScope ← DefaultSelectionStyle ←
+flutter:                    │   IconTheme ← IconTheme ← _InheritedCupertinoTheme ←
+flutter:                    │   CupertinoTheme ← _InheritedTheme ← Theme ← AnimatedTheme ←
+flutter:                    │   DefaultSelectionStyle ← _ScaffoldMessengerScope ← ⋯
+flutter:                    │ parentData: <none> (can use size)
+flutter:                    │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                    │ size: Size(800.0, 600.0)
+flutter:                    │
+flutter:                    └─child: RenderPointerListener#f59c8
+flutter:                      │ needs compositing
+flutter:                      │ creator: Listener ← HeroControllerScope ←
+flutter:                      │   Navigator-[GlobalObjectKey<NavigatorState>
+flutter:                      │   _WidgetsAppState#0d73a] ← _FocusInheritedScope ← Semantics ←
+flutter:                      │   FocusScope ← DefaultSelectionStyle ← IconTheme ← IconTheme ←
+flutter:                      │   _InheritedCupertinoTheme ← CupertinoTheme ← _InheritedTheme ← ⋯
+flutter:                      │ parentData: <none> (can use size)
+flutter:                      │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                      │ size: Size(800.0, 600.0)
+flutter:                      │ behavior: deferToChild
+flutter:                      │ listeners: down, up, cancel
+flutter:                      │
+flutter:                      └─child: RenderAbsorbPointer#c91bd
+flutter:                        │ needs compositing
+flutter:                        │ creator: AbsorbPointer ← Listener ← HeroControllerScope ←
+flutter:                        │   Navigator-[GlobalObjectKey<NavigatorState>
+flutter:                        │   _WidgetsAppState#0d73a] ← _FocusInheritedScope ← Semantics ←
+flutter:                        │   FocusScope ← DefaultSelectionStyle ← IconTheme ← IconTheme ←
+flutter:                        │   _InheritedCupertinoTheme ← CupertinoTheme ← ⋯
+flutter:                        │ parentData: <none> (can use size)
+flutter:                        │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                        │ size: Size(800.0, 600.0)
+flutter:                        │ absorbing: false
+flutter:                        │ ignoringSemantics: null
+flutter:                        │
+flutter:                        └─child: _RenderTheater#07897
+flutter:                          │ needs compositing
+flutter:                          │ creator: _Theater ←
+flutter:                          │   Overlay-[LabeledGlobalKey<OverlayState>#49a93] ←
+flutter:                          │   UnmanagedRestorationScope ← _FocusInheritedScope ← Focus ←
+flutter:                          │   _FocusInheritedScope ← Focus ← FocusTraversalGroup ←
+flutter:                          │   AbsorbPointer ← Listener ← HeroControllerScope ←
+flutter:                          │   Navigator-[GlobalObjectKey<NavigatorState>
+flutter:                          │   _WidgetsAppState#0d73a] ← ⋯
+flutter:                          │ parentData: <none> (can use size)
+flutter:                          │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          │ size: Size(800.0, 600.0)
+flutter:                          │ skipCount: 0
+flutter:                          │ textDirection: ltr
+flutter:                          │
+flutter:                          ├─onstage 1: RenderIgnorePointer#3b659
+flutter:                          │ │ creator: IgnorePointer ← _RenderTheaterMarker ←
+flutter:                          │ │   _EffectiveTickerMode ← TickerMode ←
+flutter:                          │ │   _OverlayEntryWidget-[LabeledGlobalKey<_OverlayEntryWidgetState>#a47f4]
+flutter:                          │ │   ← _Theater ← Overlay-[LabeledGlobalKey<OverlayState>#49a93] ←
+flutter:                          │ │   UnmanagedRestorationScope ← _FocusInheritedScope ← Focus ←
+flutter:                          │ │   _FocusInheritedScope ← Focus ← ⋯
+flutter:                          │ │ parentData: not positioned; offset=Offset(0.0, 0.0) (can use
+flutter:                          │ │   size)
+flutter:                          │ │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          │ │ size: Size(800.0, 600.0)
+flutter:                          │ │ ignoring: false
+flutter:                          │ │ ignoringSemantics: null
+flutter:                          │ │
+flutter:                          │ └─child: RenderBlockSemantics#7586c
+flutter:                          │   │ creator: BlockSemantics ← ModalBarrier ← IgnorePointer ←
+flutter:                          │   │   _RenderTheaterMarker ← _EffectiveTickerMode ← TickerMode ←
+flutter:                          │   │   _OverlayEntryWidget-[LabeledGlobalKey<_OverlayEntryWidgetState>#a47f4]
+flutter:                          │   │   ← _Theater ← Overlay-[LabeledGlobalKey<OverlayState>#49a93] ←
+flutter:                          │   │   UnmanagedRestorationScope ← _FocusInheritedScope ← Focus ← ⋯
+flutter:                          │   │ parentData: <none> (can use size)
+flutter:                          │   │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          │   │ blocks semantics of earlier render objects below the common
+flutter:                          │   │ boundary
+flutter:                          │   │ size: Size(800.0, 600.0)
+flutter:                          │   │ blocking: true
+flutter:                          │   │
+flutter:                          │   └─child: RenderExcludeSemantics#c1d3f
+flutter:                          │     │ creator: ExcludeSemantics ← BlockSemantics ← ModalBarrier ←
+flutter:                          │     │   IgnorePointer ← _RenderTheaterMarker ← _EffectiveTickerMode ←
+flutter:                          │     │   TickerMode ←
+flutter:                          │     │   _OverlayEntryWidget-[LabeledGlobalKey<_OverlayEntryWidgetState>#a47f4]
+flutter:                          │     │   ← _Theater ← Overlay-[LabeledGlobalKey<OverlayState>#49a93] ←
+flutter:                          │     │   UnmanagedRestorationScope ← _FocusInheritedScope ← ⋯
+flutter:                          │     │ parentData: <none> (can use size)
+flutter:                          │     │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          │     │ size: Size(800.0, 600.0)
+flutter:                          │     │ excluding: true
+flutter:                          │     │
+flutter:                          │     └─child: RenderSemanticsGestureHandler#70b16
+flutter:                          │       │ creator: _GestureSemantics ← RawGestureDetector ←
+flutter:                          │       │   _ModalBarrierGestureDetector ← ExcludeSemantics ←
+flutter:                          │       │   BlockSemantics ← ModalBarrier ← IgnorePointer ←
+flutter:                          │       │   _RenderTheaterMarker ← _EffectiveTickerMode ← TickerMode ←
+flutter:                          │       │   _OverlayEntryWidget-[LabeledGlobalKey<_OverlayEntryWidgetState>#a47f4]
+flutter:                          │       │   ← _Theater ← ⋯
+flutter:                          │       │ parentData: <none> (can use size)
+flutter:                          │       │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          │       │ size: Size(800.0, 600.0)
+flutter:                          │       │ behavior: opaque
+flutter:                          │       │ gestures: <none>
+flutter:                          │       │
+flutter:                          │       └─child: RenderPointerListener#1f34a
+flutter:                          │         │ creator: Listener ← _GestureSemantics ← RawGestureDetector ←
+flutter:                          │         │   _ModalBarrierGestureDetector ← ExcludeSemantics ←
+flutter:                          │         │   BlockSemantics ← ModalBarrier ← IgnorePointer ←
+flutter:                          │         │   _RenderTheaterMarker ← _EffectiveTickerMode ← TickerMode ←
+flutter:                          │         │   _OverlayEntryWidget-[LabeledGlobalKey<_OverlayEntryWidgetState>#a47f4]
+flutter:                          │         │   ← ⋯
+flutter:                          │         │ parentData: <none> (can use size)
+flutter:                          │         │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          │         │ size: Size(800.0, 600.0)
+flutter:                          │         │ behavior: opaque
+flutter:                          │         │ listeners: down, panZoomStart
+flutter:                          │         │
+flutter:                          │         └─child: RenderSemanticsAnnotations#73467
+flutter:                          │           │ creator: Semantics ← Listener ← _GestureSemantics ←
+flutter:                          │           │   RawGestureDetector ← _ModalBarrierGestureDetector ←
+flutter:                          │           │   ExcludeSemantics ← BlockSemantics ← ModalBarrier ←
+flutter:                          │           │   IgnorePointer ← _RenderTheaterMarker ← _EffectiveTickerMode ←
+flutter:                          │           │   TickerMode ← ⋯
+flutter:                          │           │ parentData: <none> (can use size)
+flutter:                          │           │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          │           │ size: Size(800.0, 600.0)
+flutter:                          │           │
+flutter:                          │           └─child: RenderMouseRegion#560dc
+flutter:                          │             │ creator: MouseRegion ← Semantics ← Listener ← _GestureSemantics ←
+flutter:                          │             │   RawGestureDetector ← _ModalBarrierGestureDetector ←
+flutter:                          │             │   ExcludeSemantics ← BlockSemantics ← ModalBarrier ←
+flutter:                          │             │   IgnorePointer ← _RenderTheaterMarker ← _EffectiveTickerMode ← ⋯
+flutter:                          │             │ parentData: <none> (can use size)
+flutter:                          │             │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          │             │ size: Size(800.0, 600.0)
+flutter:                          │             │ behavior: opaque
+flutter:                          │             │ listeners: <none>
+flutter:                          │             │ cursor: SystemMouseCursor(basic)
+flutter:                          │             │
+flutter:                          │             └─child: RenderConstrainedBox#01e8c
+flutter:                          │                 creator: ConstrainedBox ← MouseRegion ← Semantics ← Listener ←
+flutter:                          │                   _GestureSemantics ← RawGestureDetector ←
+flutter:                          │                   _ModalBarrierGestureDetector ← ExcludeSemantics ←
+flutter:                          │                   BlockSemantics ← ModalBarrier ← IgnorePointer ←
+flutter:                          │                   _RenderTheaterMarker ← ⋯
+flutter:                          │                 parentData: <none> (can use size)
+flutter:                          │                 constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          │                 size: Size(800.0, 600.0)
+flutter:                          │                 additionalConstraints: BoxConstraints(biggest)
+flutter:                          │
+flutter:                          ├─onstage 2: RenderSemanticsAnnotations#8187b
+flutter:                          ╎ │ needs compositing
+flutter:                          ╎ │ creator: Semantics ← _RenderTheaterMarker ← _EffectiveTickerMode
+flutter:                          ╎ │   ← TickerMode ←
+flutter:                          ╎ │   _OverlayEntryWidget-[LabeledGlobalKey<_OverlayEntryWidgetState>#8cd54]
+flutter:                          ╎ │   ← _Theater ← Overlay-[LabeledGlobalKey<OverlayState>#49a93] ←
+flutter:                          ╎ │   UnmanagedRestorationScope ← _FocusInheritedScope ← Focus ←
+flutter:                          ╎ │   _FocusInheritedScope ← Focus ← ⋯
+flutter:                          ╎ │ parentData: not positioned; offset=Offset(0.0, 0.0) (can use
+flutter:                          ╎ │   size)
+flutter:                          ╎ │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          ╎ │ size: Size(800.0, 600.0)
+flutter:                          ╎ │
+flutter:                          ╎ └─child: RenderOffstage#f211d
+flutter:                          ╎   │ needs compositing
+flutter:                          ╎   │ creator: Offstage ← _ModalScopeStatus ← UnmanagedRestorationScope
+flutter:                          ╎   │   ← RestorationScope ← AnimatedBuilder ←
+flutter:                          ╎   │   _ModalScope<dynamic>-[LabeledGlobalKey<_ModalScopeState<dynamic>>#db401]
+flutter:                          ╎   │   ← Semantics ← _RenderTheaterMarker ← _EffectiveTickerMode ←
+flutter:                          ╎   │   TickerMode ←
+flutter:                          ╎   │   _OverlayEntryWidget-[LabeledGlobalKey<_OverlayEntryWidgetState>#8cd54]
+flutter:                          ╎   │   ← _Theater ← ⋯
+flutter:                          ╎   │ parentData: <none> (can use size)
+flutter:                          ╎   │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          ╎   │ size: Size(800.0, 600.0)
+flutter:                          ╎   │ offstage: false
+flutter:                          ╎   │
+flutter:                          ╎   └─child: RenderSemanticsAnnotations#9436c
+flutter:                          ╎     │ needs compositing
+flutter:                          ╎     │ creator: Semantics ← FocusScope ← PrimaryScrollController ←
+flutter:                          ╎     │   _ActionsScope ← Actions ← Builder ← PageStorage ← Offstage ←
+flutter:                          ╎     │   _ModalScopeStatus ← UnmanagedRestorationScope ←
+flutter:                          ╎     │   RestorationScope ← AnimatedBuilder ← ⋯
+flutter:                          ╎     │ parentData: <none> (can use size)
+flutter:                          ╎     │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          ╎     │ size: Size(800.0, 600.0)
+flutter:                          ╎     │
+flutter:                          ╎     └─child: RenderRepaintBoundary#f8f28
+flutter:                          ╎       │ needs compositing
+flutter:                          ╎       │ creator: RepaintBoundary ← _FocusInheritedScope ← Semantics ←
+flutter:                          ╎       │   FocusScope ← PrimaryScrollController ← _ActionsScope ← Actions
+flutter:                          ╎       │   ← Builder ← PageStorage ← Offstage ← _ModalScopeStatus ←
+flutter:                          ╎       │   UnmanagedRestorationScope ← ⋯
+flutter:                          ╎       │ parentData: <none> (can use size)
+flutter:                          ╎       │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          ╎       │ layer: OffsetLayer#e73b7
+flutter:                          ╎       │ size: Size(800.0, 600.0)
+flutter:                          ╎       │ metrics: 66.7% useful (1 bad vs 2 good)
+flutter:                          ╎       │ diagnosis: insufficient data to draw conclusion (less than five
+flutter:                          ╎       │   repaints)
+flutter:                          ╎       │
+flutter:                          ╎       └─child: RenderFractionalTranslation#c3a54
+flutter:                          ╎         │ needs compositing
+flutter:                          ╎         │ creator: FractionalTranslation ← SlideTransition ←
+flutter:                          ╎         │   CupertinoPageTransition ← AnimatedBuilder ← RepaintBoundary ←
+flutter:                          ╎         │   _FocusInheritedScope ← Semantics ← FocusScope ←
+flutter:                          ╎         │   PrimaryScrollController ← _ActionsScope ← Actions ← Builder ← ⋯
+flutter:                          ╎         │ parentData: <none> (can use size)
+flutter:                          ╎         │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          ╎         │ size: Size(800.0, 600.0)
+flutter:                          ╎         │ translation: Offset(0.0, 0.0)
+flutter:                          ╎         │ transformHitTests: false
+flutter:                          ╎         │
+flutter:                          ╎         └─child: RenderFractionalTranslation#7fcf2
+flutter:                          ╎           │ needs compositing
+flutter:                          ╎           │ creator: FractionalTranslation ← SlideTransition ←
+flutter:                          ╎           │   FractionalTranslation ← SlideTransition ←
+flutter:                          ╎           │   CupertinoPageTransition ← AnimatedBuilder ← RepaintBoundary ←
+flutter:                          ╎           │   _FocusInheritedScope ← Semantics ← FocusScope ←
+flutter:                          ╎           │   PrimaryScrollController ← _ActionsScope ← ⋯
+flutter:                          ╎           │ parentData: <none> (can use size)
+flutter:                          ╎           │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          ╎           │ size: Size(800.0, 600.0)
+flutter:                          ╎           │ translation: Offset(0.0, 0.0)
+flutter:                          ╎           │ transformHitTests: true
+flutter:                          ╎           │
+flutter:                          ╎           └─child: RenderDecoratedBox#713ec
+flutter:                          ╎             │ needs compositing
+flutter:                          ╎             │ creator: DecoratedBox ← DecoratedBoxTransition ←
+flutter:                          ╎             │   FractionalTranslation ← SlideTransition ← FractionalTranslation
+flutter:                          ╎             │   ← SlideTransition ← CupertinoPageTransition ← AnimatedBuilder ←
+flutter:                          ╎             │   RepaintBoundary ← _FocusInheritedScope ← Semantics ← FocusScope
+flutter:                          ╎             │   ← ⋯
+flutter:                          ╎             │ parentData: <none> (can use size)
+flutter:                          ╎             │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          ╎             │ size: Size(800.0, 600.0)
+flutter:                          ╎             │ ├─decoration: _CupertinoEdgeShadowDecoration
+flutter:                          ╎             │     colors: Color(0x04000000), Color(0x00000000)
+flutter:                          ╎             │
+flutter:                          ╎             │ configuration: ImageConfiguration(bundle:
+flutter:                          ╎             │   PlatformAssetBundle#164ca(), devicePixelRatio: 1.0, locale:
+flutter:                          ╎             │   en_US, textDirection: TextDirection.ltr, platform: macOS)
+flutter:                          ╎             │
+flutter:                          ╎             └─child: RenderStack#83b13
+flutter:                          ╎               │ needs compositing
+flutter:                          ╎               │ creator: Stack ← _CupertinoBackGestureDetector<dynamic> ←
+flutter:                          ╎               │   DecoratedBox ← DecoratedBoxTransition ← FractionalTranslation ←
+flutter:                          ╎               │   SlideTransition ← FractionalTranslation ← SlideTransition ←
+flutter:                          ╎               │   CupertinoPageTransition ← AnimatedBuilder ← RepaintBoundary ←
+flutter:                          ╎               │   _FocusInheritedScope ← ⋯
+flutter:                          ╎               │ parentData: <none> (can use size)
+flutter:                          ╎               │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          ╎               │ size: Size(800.0, 600.0)
+flutter:                          ╎               │ alignment: AlignmentDirectional.topStart
+flutter:                          ╎               │ textDirection: ltr
+flutter:                          ╎               │ fit: passthrough
+flutter:                          ╎               │
+flutter:                          ╎               ├─child 1: RenderIgnorePointer#ad50f
+flutter:                          ╎               │ │ needs compositing
+flutter:                          ╎               │ │ creator: IgnorePointer ← AnimatedBuilder ← Stack ←
+flutter:                          ╎               │ │   _CupertinoBackGestureDetector<dynamic> ← DecoratedBox ←
+flutter:                          ╎               │ │   DecoratedBoxTransition ← FractionalTranslation ←
+flutter:                          ╎               │ │   SlideTransition ← FractionalTranslation ← SlideTransition ←
+flutter:                          ╎               │ │   CupertinoPageTransition ← AnimatedBuilder ← ⋯
+flutter:                          ╎               │ │ parentData: not positioned; offset=Offset(0.0, 0.0) (can use
+flutter:                          ╎               │ │   size)
+flutter:                          ╎               │ │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          ╎               │ │ size: Size(800.0, 600.0)
+flutter:                          ╎               │ │ ignoring: false
+flutter:                          ╎               │ │ ignoringSemantics: null
+flutter:                          ╎               │ │
+flutter:                          ╎               │ └─child: RenderRepaintBoundary#29754
+flutter:                          ╎               │   │ needs compositing
+flutter:                          ╎               │   │ creator: RepaintBoundary-[GlobalKey#75409] ← IgnorePointer ←
+flutter:                          ╎               │   │   AnimatedBuilder ← Stack ←
+flutter:                          ╎               │   │   _CupertinoBackGestureDetector<dynamic> ← DecoratedBox ←
+flutter:                          ╎               │   │   DecoratedBoxTransition ← FractionalTranslation ←
+flutter:                          ╎               │   │   SlideTransition ← FractionalTranslation ← SlideTransition ←
+flutter:                          ╎               │   │   CupertinoPageTransition ← ⋯
+flutter:                          ╎               │   │ parentData: <none> (can use size)
+flutter:                          ╎               │   │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          ╎               │   │ layer: OffsetLayer#fa835
+flutter:                          ╎               │   │ size: Size(800.0, 600.0)
+flutter:                          ╎               │   │ metrics: 90.9% useful (1 bad vs 10 good)
+flutter:                          ╎               │   │ diagnosis: this is an outstandingly useful repaint boundary and
+flutter:                          ╎               │   │   should definitely be kept
+flutter:                          ╎               │   │
+flutter:                          ╎               │   └─child: RenderSemanticsAnnotations#95566
+flutter:                          ╎               │     │ creator: Semantics ← Builder ← RepaintBoundary-[GlobalKey#75409]
+flutter:                          ╎               │     │   ← IgnorePointer ← AnimatedBuilder ← Stack ←
+flutter:                          ╎               │     │   _CupertinoBackGestureDetector<dynamic> ← DecoratedBox ←
+flutter:                          ╎               │     │   DecoratedBoxTransition ← FractionalTranslation ←
+flutter:                          ╎               │     │   SlideTransition ← FractionalTranslation ← ⋯
+flutter:                          ╎               │     │ parentData: <none> (can use size)
+flutter:                          ╎               │     │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          ╎               │     │ size: Size(800.0, 600.0)
+flutter:                          ╎               │     │
+flutter:                          ╎               │     └─child: RenderPhysicalModel#bc9d7
+flutter:                          ╎               │       │ creator: PhysicalModel ← AnimatedPhysicalModel ← Material ←
+flutter:                          ╎               │       │   AppHome ← Semantics ← Builder ←
+flutter:                          ╎               │       │   RepaintBoundary-[GlobalKey#75409] ← IgnorePointer ←
+flutter:                          ╎               │       │   AnimatedBuilder ← Stack ←
+flutter:                          ╎               │       │   _CupertinoBackGestureDetector<dynamic> ← DecoratedBox ← ⋯
+flutter:                          ╎               │       │ parentData: <none> (can use size)
+flutter:                          ╎               │       │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          ╎               │       │ size: Size(800.0, 600.0)
+flutter:                          ╎               │       │ elevation: 0.0
+flutter:                          ╎               │       │ color: Color(0xfffafafa)
+flutter:                          ╎               │       │ shadowColor: Color(0xfffafafa)
+flutter:                          ╎               │       │ shape: BoxShape.rectangle
+flutter:                          ╎               │       │ borderRadius: BorderRadius.zero
+flutter:                          ╎               │       │
+flutter:                          ╎               │       └─child: _RenderInkFeatures#ac819
+flutter:                          ╎               │         │ creator: _InkFeatures-[GlobalKey#d721e ink renderer] ←
+flutter:                          ╎               │         │   NotificationListener<LayoutChangedNotification> ← PhysicalModel
+flutter:                          ╎               │         │   ← AnimatedPhysicalModel ← Material ← AppHome ← Semantics ←
+flutter:                          ╎               │         │   Builder ← RepaintBoundary-[GlobalKey#75409] ← IgnorePointer ←
+flutter:                          ╎               │         │   AnimatedBuilder ← Stack ← ⋯
+flutter:                          ╎               │         │ parentData: <none> (can use size)
+flutter:                          ╎               │         │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          ╎               │         │ size: Size(800.0, 600.0)
+flutter:                          ╎               │         │
+flutter:                          ╎               │         └─child: RenderPositionedBox#dc1df
+flutter:                          ╎               │           │ creator: Center ← DefaultTextStyle ← AnimatedDefaultTextStyle ←
+flutter:                          ╎               │           │   _InkFeatures-[GlobalKey#d721e ink renderer] ←
+flutter:                          ╎               │           │   NotificationListener<LayoutChangedNotification> ← PhysicalModel
+flutter:                          ╎               │           │   ← AnimatedPhysicalModel ← Material ← AppHome ← Semantics ←
+flutter:                          ╎               │           │   Builder ← RepaintBoundary-[GlobalKey#75409] ← ⋯
+flutter:                          ╎               │           │ parentData: <none> (can use size)
+flutter:                          ╎               │           │ constraints: BoxConstraints(w=800.0, h=600.0)
+flutter:                          ╎               │           │ size: Size(800.0, 600.0)
+flutter:                          ╎               │           │ alignment: Alignment.center
+flutter:                          ╎               │           │ textDirection: ltr
+flutter:                          ╎               │           │ widthFactor: expand
+flutter:                          ╎               │           │ heightFactor: expand
+flutter:                          ╎               │           │
+flutter:                          ╎               │           └─child: RenderSemanticsAnnotations#a0a4b relayoutBoundary=up1
+flutter:                          ╎               │             │ creator: Semantics ← TextButton ← Center ← DefaultTextStyle ←
+flutter:                          ╎               │             │   AnimatedDefaultTextStyle ← _InkFeatures-[GlobalKey#d721e ink
+flutter:                          ╎               │             │   renderer] ← NotificationListener<LayoutChangedNotification> ←
+flutter:                          ╎               │             │   PhysicalModel ← AnimatedPhysicalModel ← Material ← AppHome ←
+flutter:                          ╎               │             │   Semantics ← ⋯
+flutter:                          ╎               │             │ parentData: offset=Offset(329.0, 286.0) (can use size)
+flutter:                          ╎               │             │ constraints: BoxConstraints(0.0<=w<=800.0, 0.0<=h<=600.0)
+flutter:                          ╎               │             │ semantic boundary
+flutter:                          ╎               │             │ size: Size(142.0, 28.0)
+flutter:                          ╎               │             │
+flutter:                          ╎               │             └─child: _RenderInputPadding#4672f relayoutBoundary=up2
+flutter:                          ╎               │               │ creator: _InputPadding ← Semantics ← TextButton ← Center ←
+flutter:                          ╎               │               │   DefaultTextStyle ← AnimatedDefaultTextStyle ←
+flutter:                          ╎               │               │   _InkFeatures-[GlobalKey#d721e ink renderer] ←
+flutter:                          ╎               │               │   NotificationListener<LayoutChangedNotification> ← PhysicalModel
+flutter:                          ╎               │               │   ← AnimatedPhysicalModel ← Material ← AppHome ← ⋯
+flutter:                          ╎               │               │ parentData: <none> (can use size)
+flutter:                          ╎               │               │ constraints: BoxConstraints(0.0<=w<=800.0, 0.0<=h<=600.0)
+flutter:                          ╎               │               │ size: Size(142.0, 28.0)
+flutter:                          ╎               │               │
+flutter:                          ╎               │               └─child: RenderConstrainedBox#425d6 relayoutBoundary=up3
+flutter:                          ╎               │                 │ creator: ConstrainedBox ← _InputPadding ← Semantics ← TextButton
+flutter:                          ╎               │                 │   ← Center ← DefaultTextStyle ← AnimatedDefaultTextStyle ←
+flutter:                          ╎               │                 │   _InkFeatures-[GlobalKey#d721e ink renderer] ←
+flutter:                          ╎               │                 │   NotificationListener<LayoutChangedNotification> ← PhysicalModel
+flutter:                          ╎               │                 │   ← AnimatedPhysicalModel ← Material ← ⋯
+flutter:                          ╎               │                 │ parentData: offset=Offset(0.0, 0.0) (can use size)
+flutter:                          ╎               │                 │ constraints: BoxConstraints(0.0<=w<=800.0, 0.0<=h<=600.0)
+flutter:                          ╎               │                 │ size: Size(142.0, 28.0)
+flutter:                          ╎               │                 │ additionalConstraints: BoxConstraints(56.0<=w<=Infinity,
+flutter:                          ╎               │                 │   28.0<=h<=Infinity)
+flutter:                          ╎               │                 │
+flutter:                          ╎               │                 └─child: RenderPhysicalShape#8e171 relayoutBoundary=up4
+flutter:                          ╎               │                   │ creator: PhysicalShape ← _MaterialInterior ← Material ←
+flutter:                          ╎               │                   │   ConstrainedBox ← _InputPadding ← Semantics ← TextButton ←
+flutter:                          ╎               │                   │   Center ← DefaultTextStyle ← AnimatedDefaultTextStyle ←
+flutter:                          ╎               │                   │   _InkFeatures-[GlobalKey#d721e ink renderer] ←
+flutter:                          ╎               │                   │   NotificationListener<LayoutChangedNotification> ← ⋯
+flutter:                          ╎               │                   │ parentData: <none> (can use size)
+flutter:                          ╎               │                   │ constraints: BoxConstraints(56.0<=w<=800.0, 28.0<=h<=600.0)
+flutter:                          ╎               │                   │ size: Size(142.0, 28.0)
+flutter:                          ╎               │                   │ elevation: 0.0
+flutter:                          ╎               │                   │ color: Color(0x00000000)
+flutter:                          ╎               │                   │ shadowColor: Color(0x00000000)
+flutter:                          ╎               │                   │ clipper: ShapeBorderClipper
+flutter:                          ╎               │                   │
+flutter:                          ╎               │                   └─child: RenderCustomPaint#eea46 relayoutBoundary=up5
+flutter:                          ╎               │                     │ creator: CustomPaint ← _ShapeBorderPaint ← PhysicalShape ←
+flutter:                          ╎               │                     │   _MaterialInterior ← Material ← ConstrainedBox ← _InputPadding ←
+flutter:                          ╎               │                     │   Semantics ← TextButton ← Center ← DefaultTextStyle ←
+flutter:                          ╎               │                     │   AnimatedDefaultTextStyle ← ⋯
+flutter:                          ╎               │                     │ parentData: <none> (can use size)
+flutter:                          ╎               │                     │ constraints: BoxConstraints(56.0<=w<=800.0, 28.0<=h<=600.0)
+flutter:                          ╎               │                     │ size: Size(142.0, 28.0)
+flutter:                          ╎               │                     │ painter: null
+flutter:                          ╎               │                     │ foregroundPainter: _ShapeBorderPainter#ac724()
+flutter:                          ╎               │                     │
+flutter:                          ╎               │                     └─child: _RenderInkFeatures#b19a7 relayoutBoundary=up6
+flutter:                          ╎               │                       │ creator: _InkFeatures-[GlobalKey#87971 ink renderer] ←
+flutter:                          ╎               │                       │   NotificationListener<LayoutChangedNotification> ← CustomPaint ←
+flutter:                          ╎               │                       │   _ShapeBorderPaint ← PhysicalShape ← _MaterialInterior ←
+flutter:                          ╎               │                       │   Material ← ConstrainedBox ← _InputPadding ← Semantics ←
+flutter:                          ╎               │                       │   TextButton ← Center ← ⋯
+flutter:                          ╎               │                       │ parentData: <none> (can use size)
+flutter:                          ╎               │                       │ constraints: BoxConstraints(56.0<=w<=800.0, 28.0<=h<=600.0)
+flutter:                          ╎               │                       │ size: Size(142.0, 28.0)
+flutter:                          ╎               │                       │
+flutter:                          ╎               │                       └─child: RenderSemanticsAnnotations#4d1b3 relayoutBoundary=up7
+flutter:                          ╎               │                         │ creator: Semantics ← _FocusInheritedScope ← Focus ← _ActionsScope
+flutter:                          ╎               │                         │   ← Actions ← _ParentInkResponseProvider ←
+flutter:                          ╎               │                         │   _InkResponseStateWidget ← InkWell ← DefaultTextStyle ←
+flutter:                          ╎               │                         │   AnimatedDefaultTextStyle ← _InkFeatures-[GlobalKey#87971 ink
+flutter:                          ╎               │                         │   renderer] ← NotificationListener<LayoutChangedNotification> ← ⋯
+flutter:                          ╎               │                         │ parentData: <none> (can use size)
+flutter:                          ╎               │                         │ constraints: BoxConstraints(56.0<=w<=800.0, 28.0<=h<=600.0)
+flutter:                          ╎               │                         │ size: Size(142.0, 28.0)
+flutter:                          ╎               │                         │
+flutter:                          ╎               │                         └─child: RenderMouseRegion#e5b3f relayoutBoundary=up8
+flutter:                          ╎               │                           │ creator: MouseRegion ← Semantics ← _FocusInheritedScope ← Focus ←
+flutter:                          ╎               │                           │   _ActionsScope ← Actions ← _ParentInkResponseProvider ←
+flutter:                          ╎               │                           │   _InkResponseStateWidget ← InkWell ← DefaultTextStyle ←
+flutter:                          ╎               │                           │   AnimatedDefaultTextStyle ← _InkFeatures-[GlobalKey#87971 ink
+flutter:                          ╎               │                           │   renderer] ← ⋯
+flutter:                          ╎               │                           │ parentData: <none> (can use size)
+flutter:                          ╎               │                           │ constraints: BoxConstraints(56.0<=w<=800.0, 28.0<=h<=600.0)
+flutter:                          ╎               │                           │ size: Size(142.0, 28.0)
+flutter:                          ╎               │                           │ behavior: opaque
+flutter:                          ╎               │                           │ listeners: enter, exit
+flutter:                          ╎               │                           │ cursor: SystemMouseCursor(click)
+flutter:                          ╎               │                           │
+flutter:                          ╎               │                           └─child: RenderSemanticsAnnotations#deb9b relayoutBoundary=up9
+flutter:                          ╎               │                             │ creator: Semantics ← DefaultSelectionStyle ← Builder ←
+flutter:                          ╎               │                             │   MouseRegion ← Semantics ← _FocusInheritedScope ← Focus ←
+flutter:                          ╎               │                             │   _ActionsScope ← Actions ← _ParentInkResponseProvider ←
+flutter:                          ╎               │                             │   _InkResponseStateWidget ← InkWell ← ⋯
+flutter:                          ╎               │                             │ parentData: <none> (can use size)
+flutter:                          ╎               │                             │ constraints: BoxConstraints(56.0<=w<=800.0, 28.0<=h<=600.0)
+flutter:                          ╎               │                             │ size: Size(142.0, 28.0)
+flutter:                          ╎               │                             │
+flutter:                          ╎               │                             └─child: RenderPointerListener#2017a relayoutBoundary=up10
+flutter:                          ╎               │                               │ creator: Listener ← RawGestureDetector ← GestureDetector ←
+flutter:                          ╎               │                               │   Semantics ← DefaultSelectionStyle ← Builder ← MouseRegion ←
+flutter:                          ╎               │                               │   Semantics ← _FocusInheritedScope ← Focus ← _ActionsScope ←
+flutter:                          ╎               │                               │   Actions ← ⋯
+flutter:                          ╎               │                               │ parentData: <none> (can use size)
+flutter:                          ╎               │                               │ constraints: BoxConstraints(56.0<=w<=800.0, 28.0<=h<=600.0)
+flutter:                          ╎               │                               │ size: Size(142.0, 28.0)
+flutter:                          ╎               │                               │ behavior: opaque
+flutter:                          ╎               │                               │ listeners: down, panZoomStart
+flutter:                          ╎               │                               │
+flutter:                          ╎               │                               └─child: RenderPadding#8455f relayoutBoundary=up11
+flutter:                          ╎               │                                 │ creator: Padding ← IconTheme ← Builder ← Listener ←
+flutter:                          ╎               │                                 │   RawGestureDetector ← GestureDetector ← Semantics ←
+flutter:                          ╎               │                                 │   DefaultSelectionStyle ← Builder ← MouseRegion ← Semantics ←
+flutter:                          ╎               │                                 │   _FocusInheritedScope ← ⋯
+flutter:                          ╎               │                                 │ parentData: <none> (can use size)
+flutter:                          ╎               │                                 │ constraints: BoxConstraints(56.0<=w<=800.0, 28.0<=h<=600.0)
+flutter:                          ╎               │                                 │ size: Size(142.0, 28.0)
+flutter:                          ╎               │                                 │ padding: EdgeInsets(8.0, 0.0, 8.0, 0.0)
+flutter:                          ╎               │                                 │ textDirection: ltr
+flutter:                          ╎               │                                 │
+flutter:                          ╎               │                                 └─child: RenderPositionedBox#80b8d relayoutBoundary=up12
+flutter:                          ╎               │                                   │ creator: Align ← Padding ← IconTheme ← Builder ← Listener ←
+flutter:                          ╎               │                                   │   RawGestureDetector ← GestureDetector ← Semantics ←
+flutter:                          ╎               │                                   │   DefaultSelectionStyle ← Builder ← MouseRegion ← Semantics ← ⋯
+flutter:                          ╎               │                                   │ parentData: offset=Offset(8.0, 0.0) (can use size)
+flutter:                          ╎               │                                   │ constraints: BoxConstraints(40.0<=w<=784.0, 28.0<=h<=600.0)
+flutter:                          ╎               │                                   │ size: Size(126.0, 28.0)
+flutter:                          ╎               │                                   │ alignment: Alignment.center
+flutter:                          ╎               │                                   │ textDirection: ltr
+flutter:                          ╎               │                                   │ widthFactor: 1.0
+flutter:                          ╎               │                                   │ heightFactor: 1.0
+flutter:                          ╎               │                                   │
+flutter:                          ╎               │                                   └─child: RenderParagraph#59bc2 relayoutBoundary=up13
+flutter:                          ╎               │                                     │ creator: RichText ← Text ← Align ← Padding ← IconTheme ← Builder
+flutter:                          ╎               │                                     │   ← Listener ← RawGestureDetector ← GestureDetector ← Semantics ←
+flutter:                          ╎               │                                     │   DefaultSelectionStyle ← Builder ← ⋯
+flutter:                          ╎               │                                     │ parentData: offset=Offset(0.0, 6.0) (can use size)
+flutter:                          ╎               │                                     │ constraints: BoxConstraints(0.0<=w<=784.0, 0.0<=h<=600.0)
+flutter:                          ╎               │                                     │ size: Size(126.0, 16.0)
+flutter:                          ╎               │                                     │ textAlign: start
+flutter:                          ╎               │                                     │ textDirection: ltr
+flutter:                          ╎               │                                     │ softWrap: wrapping at box width
+flutter:                          ╎               │                                     │ overflow: clip
+flutter:                          ╎               │                                     │ locale: en_US
+flutter:                          ╎               │                                     │ maxLines: unlimited
+flutter:                          ╎               │                                     ╘═╦══ text ═══
+flutter:                          ╎               │                                       ║ TextSpan:
+flutter:                          ╎               │                                       ║   debugLabel: ((englishLike labelLarge 2014).merge(blackRedwoodCity
+flutter:                          ╎               │                                       ║     labelLarge)).copyWith
+flutter:                          ╎               │                                       ║   inherit: false
+flutter:                          ╎               │                                       ║   color: MaterialColor(primary value: Color(0xff2196f3))
+flutter:                          ╎               │                                       ║   family: .AppleSystemUIFont
+flutter:                          ╎               │                                       ║   size: 14.0
+flutter:                          ╎               │                                       ║   weight: 500
+flutter:                          ╎               │                                       ║   baseline: alphabetic
+flutter:                          ╎               │                                       ║   decoration: TextDecoration.none
+flutter:                          ╎               │                                       ║   "Dump Render Tree"
+flutter:                          ╎               │                                       ╚═══════════
+flutter:                          ╎               └─child 2: RenderPointerListener#db4b5
+flutter:                          ╎                   creator: Listener ← Positioned ← PositionedDirectional ← Stack ←
+flutter:                          ╎                     _CupertinoBackGestureDetector<dynamic> ← DecoratedBox ←
+flutter:                          ╎                     DecoratedBoxTransition ← FractionalTranslation ←
+flutter:                          ╎                     SlideTransition ← FractionalTranslation ← SlideTransition ←
+flutter:                          ╎                     CupertinoPageTransition ← ⋯
+flutter:                          ╎                   parentData: top=0.0; bottom=0.0; left=0.0; width=20.0;
+flutter:                          ╎                     offset=Offset(0.0, 0.0) (can use size)
+flutter:                          ╎                   constraints: BoxConstraints(w=20.0, h=600.0)
+flutter:                          ╎                   size: Size(20.0, 600.0)
+flutter:                          ╎                   behavior: translucent
+flutter:                          ╎                   listeners: down
+flutter:                          ╎
+flutter:                          └╌no offstage children
+flutter:
+
+```
diff --git a/src/testing/trees/semantic-tree.md b/src/testing/trees/semantic-tree.md
new file mode 100644
index 0000000000..59c4e69fff
--- /dev/null
+++ b/src/testing/trees/semantic-tree.md
@@ -0,0 +1,27 @@
+```nocode
+flutter: SemanticsNode#0
+flutter:  │ Rect.fromLTRB(0.0, 0.0, 800.0, 600.0)
+flutter:  │
+flutter:  └─SemanticsNode#1
+flutter:    │ Rect.fromLTRB(0.0, 0.0, 800.0, 600.0)
+flutter:    │ textDirection: ltr
+flutter:    │
+flutter:    └─SemanticsNode#2
+flutter:      │ Rect.fromLTRB(0.0, 0.0, 800.0, 600.0)
+flutter:      │ sortKey: OrdinalSortKey#824a2(order: 0.0)
+flutter:      │
+flutter:      └─SemanticsNode#3
+flutter:        │ Rect.fromLTRB(0.0, 0.0, 800.0, 600.0)
+flutter:        │ flags: scopesRoute
+flutter:        │
+flutter:        └─SemanticsNode#4
+flutter:            Rect.fromLTRB(278.0, 267.0, 522.0, 333.0)
+flutter:            actions: tap
+flutter:            flags: isButton, hasEnabledState, isEnabled
+flutter:            label:
+flutter:              "Clickable text here!
+flutter:              Click Me!"
+flutter:            textDirection: ltr
+flutter:
+flutter: Clicked!
+```
diff --git a/src/testing/trees/widget-tree.md b/src/testing/trees/widget-tree.md
new file mode 100644
index 0000000000..a4f1970bb7
--- /dev/null
+++ b/src/testing/trees/widget-tree.md
@@ -0,0 +1,180 @@
+```nocode
+flutter: WidgetsFlutterBinding - DEBUG MODE
+flutter: [root](renderObject: RenderView#06beb)
+flutter: └View-[GlobalObjectKey FlutterView#7971c]
+flutter:  └_ViewScope
+flutter:   └_MediaQueryFromView(state: _MediaQueryFromViewState#d790c)
+flutter:    └MediaQuery(MediaQueryData(size: Size(800.0, 600.0), devicePixelRatio: 1.0, textScaleFactor: 1.0, platformBrightness: Brightness.dark, padding: EdgeInsets.zero, viewPadding: EdgeInsets.zero, viewInsets: EdgeInsets.zero, systemGestureInsets: EdgeInsets.zero, alwaysUse24HourFormat: false, accessibleNavigation: false, highContrast: false, disableAnimations: false, invertColors: false, boldText: false, navigationMode: traditional, gestureSettings: DeviceGestureSettings(touchSlop: null), displayFeatures: []))
+flutter:     └MaterialApp(state: _MaterialAppState#27fa9)
+flutter:      └ScrollConfiguration(behavior: MaterialScrollBehavior)
+flutter:       └HeroControllerScope
+flutter:        └Focus(state: _FocusState#d7f97)
+flutter:         └_FocusInheritedScope
+flutter:          └Semantics(container: false, properties: SemanticsProperties, tooltip: null, renderObject: RenderSemanticsAnnotations#a6464)
+flutter:           └WidgetsApp-[GlobalObjectKey _MaterialAppState#27fa9](state: _WidgetsAppState#b5b17)
+flutter:            └RootRestorationScope(state: _RootRestorationScopeState#6b028)
+flutter:             └UnmanagedRestorationScope
+flutter:              └RestorationScope(dependencies: [UnmanagedRestorationScope], state: _RestorationScopeState#d1369)
+flutter:               └UnmanagedRestorationScope
+flutter:                └SharedAppData(state: _SharedAppDataState#95e82)
+flutter:                 └_SharedAppModel
+flutter:                  └Shortcuts(shortcuts: <Default WidgetsApp Shortcuts>, state: _ShortcutsState#272dc)
+flutter:                   └Focus(debugLabel: "Shortcuts", dependencies: [_FocusInheritedScope], state: _FocusState#a3300)
+flutter:                    └_FocusInheritedScope
+flutter:                     └Semantics(container: false, properties: SemanticsProperties, tooltip: null, renderObject: RenderSemanticsAnnotations#db110)
+flutter:                      └DefaultTextEditingShortcuts
+flutter:                       └Shortcuts(shortcuts: <Default Text Editing Shortcuts>, state: _ShortcutsState#1d796)
+flutter:                        └Focus(debugLabel: "Shortcuts", dependencies: [_FocusInheritedScope], state: _FocusState#0081b)
+flutter:                         └_FocusInheritedScope
+flutter:                          └Semantics(container: false, properties: SemanticsProperties, tooltip: null, renderObject: RenderSemanticsAnnotations#0d70e)
+flutter:                           └Shortcuts(shortcuts: <Web Disabling Text Editing Shortcuts>, state: _ShortcutsState#56bac)
+flutter:                            └Focus(debugLabel: "Shortcuts", dependencies: [_FocusInheritedScope], state: _FocusState#3152e)
+flutter:                             └_FocusInheritedScope
+flutter:                              └Semantics(container: false, properties: SemanticsProperties, tooltip: null, renderObject: RenderSemanticsAnnotations#b7eaf)
+flutter:                               └Actions(dispatcher: null, actions: {DoNothingIntent: DoNothingAction#0fda1, DoNothingAndStopPropagationIntent: DoNothingAction#17f30, RequestFocusIntent: RequestFocusAction#10bd0, NextFocusIntent: NextFocusAction#60317, PreviousFocusIntent: PreviousFocusAction#2a933, DirectionalFocusIntent: DirectionalFocusAction#a6922, ScrollIntent: _OverridableContextAction<ScrollIntent>#964fe(defaultAction: ScrollAction#ffb50), PrioritizedIntents: PrioritizedAction#be0e2, VoidCallbackIntent: VoidCallbackAction#805fa}, state: _ActionsState#bbd25)
+flutter:                                └_ActionsScope
+flutter:                                 └FocusTraversalGroup(policy: ReadingOrderTraversalPolicy#f1e76, state: _FocusTraversalGroupState#0c200)
+flutter:                                  └Focus(debugLabel: "FocusTraversalGroup", focusNode: _FocusTraversalGroupNode#ffcad(FocusTraversalGroup [IN FOCUS PATH]), dependencies: [_FocusInheritedScope], state: _FocusState#c7dc2)
+flutter:                                   └_FocusInheritedScope
+flutter:                                    └TapRegionSurface(renderObject: RenderTapRegionSurface#17aba)
+flutter:                                     └ShortcutRegistrar(state: _ShortcutRegistrarState#44954)
+flutter:                                      └_ShortcutRegistrarScope
+flutter:                                       └Shortcuts(manager: ShortcutManager#eb38c(shortcuts: {}), shortcuts: {}, state: _ShortcutsState#f85ac)
+flutter:                                        └Focus(debugLabel: "Shortcuts", dependencies: [_FocusInheritedScope], state: _FocusState#8c1a7)
+flutter:                                         └_FocusInheritedScope
+flutter:                                          └Semantics(container: false, properties: SemanticsProperties, tooltip: null, renderObject: RenderSemanticsAnnotations#1fc98)
+flutter:                                           └Localizations(locale: en_US, delegates: [DefaultMaterialLocalizations.delegate(en_US), DefaultCupertinoLocalizations.delegate(en_US), DefaultWidgetsLocalizations.delegate(en_US)], state: _LocalizationsState#ae3a0)
+flutter:                                            └Semantics(container: false, properties: SemanticsProperties, tooltip: null, textDirection: ltr, renderObject: RenderSemanticsAnnotations#8776e)
+flutter:                                             └_LocalizationsScope-[GlobalKey#61ca6]
+flutter:                                              └Directionality(textDirection: ltr)
+flutter:                                               └Title(color: Color(0xff2196f3))
+flutter:                                                └CheckedModeBanner("DEBUG")
+flutter:                                                 └Banner("DEBUG", textDirection: ltr, location: topEnd, Color(0xa0b71c1c), text inherit: true, text color: Color(0xffffffff), text size: 10.2, text weight: 900, text height: 1.0x, dependencies: [Directionality])
+flutter:                                                  └CustomPaint(renderObject: RenderCustomPaint#c014d)
+flutter:                                                   └DefaultTextStyle(debugLabel: fallback style; consider putting your text in a Material, inherit: true, color: Color(0xd0ff0000), family: monospace, size: 48.0, weight: 900, decoration: double Color(0xffffff00) TextDecoration.underline, softWrap: wrapping at box width, overflow: clip)
+flutter:                                                    └Builder(dependencies: [MediaQuery])
+flutter:                                                     └ScaffoldMessenger(dependencies: [MediaQuery], state: ScaffoldMessengerState#5b36e)
+flutter:                                                      └_ScaffoldMessengerScope
+flutter:                                                       └DefaultSelectionStyle
+flutter:                                                        └AnimatedTheme(duration: 200ms, state: _AnimatedThemeState#cd149(ticker inactive, ThemeDataTween(ThemeData#ef3b2 → ThemeData#ef3b2)))
+flutter:                                                         └Theme(ThemeData#ef3b2, dependencies: [DefaultSelectionStyle])
+flutter:                                                          └_InheritedTheme
+flutter:                                                           └CupertinoTheme(brightness: light, primaryColor: MaterialColor(primary value: Color(0xff2196f3)), primaryContrastingColor: Color(0xffffffff), scaffoldBackgroundColor: Color(0xfffafafa), actionTextStyle: TextStyle(inherit: false, color: MaterialColor(primary value: Color(0xff2196f3)), family: .SF Pro Text, size: 17.0, letterSpacing: -0.4, decoration: TextDecoration.none), navActionTextStyle: TextStyle(inherit: false, color: MaterialColor(primary value: Color(0xff2196f3)), family: .SF Pro Text, size: 17.0, letterSpacing: -0.4, decoration: TextDecoration.none))
+flutter:                                                            └_InheritedCupertinoTheme
+flutter:                                                             └IconTheme(color: MaterialColor(primary value: Color(0xff2196f3)))
+flutter:                                                              └IconTheme(color: Color(0xdd000000))
+flutter:                                                               └DefaultSelectionStyle
+flutter:                                                                └FocusScope(debugLabel: "Navigator Scope", AUTOFOCUS, dependencies: [_FocusInheritedScope], state: _FocusScopeState#acbd8)
+flutter:                                                                 └Semantics(container: false, properties: SemanticsProperties, tooltip: null, renderObject: RenderSemanticsAnnotations#ab3f0)
+flutter:                                                                  └_FocusInheritedScope
+flutter:                                                                   └Navigator-[GlobalObjectKey<NavigatorState> _WidgetsAppState#b5b17](dependencies: [HeroControllerScope, UnmanagedRestorationScope], state: NavigatorState#1395a(tickers: tracking 1 ticker))
+flutter:                                                                    └HeroControllerScope
+flutter:                                                                     └Listener(listeners: [down, up, cancel], behavior: deferToChild, renderObject: RenderPointerListener#34172)
+flutter:                                                                      └AbsorbPointer(absorbing: false, renderObject: RenderAbsorbPointer#f8711)
+flutter:                                                                       └FocusTraversalGroup(policy: ReadingOrderTraversalPolicy#f1e76, state: _FocusTraversalGroupState#8d61a)
+flutter:                                                                        └Focus(debugLabel: "FocusTraversalGroup", focusNode: _FocusTraversalGroupNode#dd2b1(FocusTraversalGroup [IN FOCUS PATH]), dependencies: [_FocusInheritedScope], state: _FocusState#0bb03)
+flutter:                                                                         └_FocusInheritedScope
+flutter:                                                                          └Focus(debugLabel: "Navigator", AUTOFOCUS, focusNode: FocusNode#a3309(Navigator [IN FOCUS PATH]), dependencies: [_FocusInheritedScope], state: _FocusState#d3d07)
+flutter:                                                                           └_FocusInheritedScope
+flutter:                                                                            └UnmanagedRestorationScope
+flutter:                                                                             └Overlay-[LabeledGlobalKey<OverlayState>#5485a](state: OverlayState#5bd52(entries: [OverlayEntry#fc947(opaque: true; maintainState: false), OverlayEntry#05a32(opaque: false; maintainState: true)]))
+flutter:                                                                              └_Theater(skipCount: 0, dependencies: [Directionality], renderObject: _RenderTheater#e86c3)
+flutter:                                                                               ├_OverlayEntryWidget-[LabeledGlobalKey<_OverlayEntryWidgetState>#1b37e](state: _OverlayEntryWidgetState#06ab0)
+flutter:                                                                               │└TickerMode(state: _TickerModeState#0b4ac(requested mode: enabled))
+flutter:                                                                               │ └_EffectiveTickerMode(effective mode: enabled)
+flutter:                                                                               │  └_RenderTheaterMarker
+flutter:                                                                               │   └IgnorePointer(ignoring: false, renderObject: RenderIgnorePointer#34c66)
+flutter:                                                                               │    └ModalBarrier
+flutter:                                                                               │     └BlockSemantics(blocking: true, renderObject: RenderBlockSemantics#97799)
+flutter:                                                                               │      └ExcludeSemantics(excluding: true, renderObject: RenderExcludeSemantics#8c4ce)
+flutter:                                                                               │       └_ModalBarrierGestureDetector
+flutter:                                                                               │        └RawGestureDetector(state: RawGestureDetectorState#556f6(gestures: [any tap], behavior: opaque))
+flutter:                                                                               │         └_GestureSemantics(renderObject: RenderSemanticsGestureHandler#616f1)
+flutter:                                                                               │          └Listener(listeners: [down, panZoomStart], behavior: opaque, renderObject: RenderPointerListener#c2b89)
+flutter:                                                                               │           └Semantics(container: false, properties: SemanticsProperties, tooltip: null, renderObject: RenderSemanticsAnnotations#c3b31)
+flutter:                                                                               │            └MouseRegion(listeners: <none>, cursor: SystemMouseCursor(basic), renderObject: RenderMouseRegion#53cdb)
+flutter:                                                                               │             └ConstrainedBox(BoxConstraints(biggest), renderObject: RenderConstrainedBox#faa51)
+flutter:                                                                               └_OverlayEntryWidget-[LabeledGlobalKey<_OverlayEntryWidgetState>#bc0aa](state: _OverlayEntryWidgetState#cbf35)
+flutter:                                                                                └TickerMode(state: _TickerModeState#23e73(requested mode: enabled))
+flutter:                                                                                 └_EffectiveTickerMode(effective mode: enabled)
+flutter:                                                                                  └_RenderTheaterMarker
+flutter:                                                                                   └Semantics(container: false, properties: SemanticsProperties, tooltip: null, sortKey: OrdinalSortKey#135f4(order: 0.0), renderObject: RenderSemanticsAnnotations#5565e)
+flutter:                                                                                    └_ModalScope<dynamic>-[LabeledGlobalKey<_ModalScopeState<dynamic>>#4fe82](state: _ModalScopeState<dynamic>#4da7d)
+flutter:                                                                                     └AnimatedBuilder(listenable: ValueNotifier<String?>#d87c6(null), state: _AnimatedState#dde81)
+flutter:                                                                                      └RestorationScope(dependencies: [UnmanagedRestorationScope], state: _RestorationScopeState#78c51)
+flutter:                                                                                       └UnmanagedRestorationScope
+flutter:                                                                                        └_ModalScopeStatus(active)
+flutter:                                                                                         └Offstage(offstage: false, renderObject: RenderOffstage#5e498)
+flutter:                                                                                          └PageStorage
+flutter:                                                                                           └Builder
+flutter:                                                                                            └Actions(dispatcher: null, actions: {DismissIntent: _DismissModalAction#6279e}, state: _ActionsState#48019)
+flutter:                                                                                             └_ActionsScope
+flutter:                                                                                              └PrimaryScrollController(ScrollController#6a546(no clients))
+flutter:                                                                                               └FocusScope(debugLabel: "_ModalScopeState<dynamic> Focus Scope", focusNode: FocusScopeNode#0e2af(_ModalScopeState<dynamic> Focus Scope [PRIMARY FOCUS]), dependencies: [_FocusInheritedScope], state: _FocusScopeState#0bac4)
+flutter:                                                                                                └Semantics(container: false, properties: SemanticsProperties, tooltip: null, renderObject: RenderSemanticsAnnotations#44b4e)
+flutter:                                                                                                 └_FocusInheritedScope
+flutter:                                                                                                  └RepaintBoundary(renderObject: RenderRepaintBoundary#38f41)
+flutter:                                                                                                   └AnimatedBuilder(listenable: Listenable.merge([AnimationController#9d623(⏭ 1.000; paused; for MaterialPageRoute<dynamic>(/))➩ProxyAnimation, kAlwaysDismissedAnimation➩ProxyAnimation➩ProxyAnimation]), dependencies: [_InheritedTheme, _LocalizationsScope-[GlobalKey#61ca6]], state: _AnimatedState#47725)
+flutter:                                                                                                    └CupertinoPageTransition(dependencies: [Directionality])
+flutter:                                                                                                     └SlideTransition(listenable: kAlwaysDismissedAnimation➩ProxyAnimation➩ProxyAnimation➩Cubic(0.35, 0.91, 0.33, 0.97)ₒₙ/Cubic(0.67, 0.03, 0.65, 0.09)➩Tween<Offset>(Offset(0.0, 0.0) → Offset(-0.3, 0.0))➩Offset(0.0, 0.0), state: _AnimatedState#b6162)
+flutter:                                                                                                      └FractionalTranslation(renderObject: RenderFractionalTranslation#fb461)
+flutter:                                                                                                       └SlideTransition(listenable: AnimationController#9d623(⏭ 1.000; paused; for MaterialPageRoute<dynamic>(/))➩ProxyAnimation➩ThreePointCubic ₒₙ/FlippedCurve(ThreePointCubic )➩Tween<Offset>(Offset(1.0, 0.0) → Offset(0.0, 0.0))➩Offset(0.0, 0.0), state: _AnimatedState#834bf)
+flutter:                                                                                                        └FractionalTranslation(renderObject: RenderFractionalTranslation#73ea4)
+flutter:                                                                                                         └DecoratedBoxTransition(listenable: AnimationController#9d623(⏭ 1.000; paused; for MaterialPageRoute<dynamic>(/))➩ProxyAnimation➩Cubic(0.35, 0.91, 0.33, 0.97)➩DecorationTween(_CupertinoEdgeShadowDecoration(colors: null) → _CupertinoEdgeShadowDecoration(colors: [Color(0x04000000), Color(0x00000000)]))➩_CupertinoEdgeShadowDecoration(colors: [Color(0x04000000), Color(0x00000000)]), state: _AnimatedState#a7fca)
+flutter:                                                                                                          └DecoratedBox(bg: _CupertinoEdgeShadowDecoration(colors: [Color(0x04000000), Color(0x00000000)]), dependencies: [Directionality, MediaQuery, _LocalizationsScope-[GlobalKey#61ca6]], renderObject: RenderDecoratedBox#9965c)
+flutter:                                                                                                           └_CupertinoBackGestureDetector<dynamic>(dependencies: [Directionality, MediaQuery], state: _CupertinoBackGestureDetectorState<dynamic>#ab8cd)
+flutter:                                                                                                            └Stack(alignment: AlignmentDirectional.topStart, fit: passthrough, dependencies: [Directionality], renderObject: RenderStack#b2b7c)
+flutter:                                                                                                             ├AnimatedBuilder(listenable: ValueNotifier<bool>#1a88e(false), state: _AnimatedState#6e33c)
+flutter:                                                                                                             │└IgnorePointer(ignoring: false, renderObject: RenderIgnorePointer#2b763)
+flutter:                                                                                                             │ └RepaintBoundary-[GlobalKey#628f4](renderObject: RenderRepaintBoundary#5a53b)
+flutter:                                                                                                             │  └Builder
+flutter:                                                                                                             │   └Semantics(container: false, properties: SemanticsProperties, tooltip: null, renderObject: RenderSemanticsAnnotations#f8795)
+flutter:                                                                                                             │    └AppHome
+flutter:                                                                                                             │     └Material(type: canvas, dependencies: [_InheritedTheme, _LocalizationsScope-[GlobalKey#61ca6]], state: _MaterialState#7d183)
+flutter:                                                                                                             │      └AnimatedPhysicalModel(duration: 200ms, shape: rectangle, borderRadius: BorderRadius.zero, elevation: 0.0, color: Color(0xfffafafa), animateColor: false, shadowColor: Color(0xff000000), animateShadowColor: true, state: _AnimatedPhysicalModelState#d479e(ticker inactive))
+flutter:                                                                                                             │       └PhysicalModel(shape: rectangle, borderRadius: BorderRadius.zero, elevation: 0.0, color: Color(0xfffafafa), shadowColor: Color(0xff000000), renderObject: RenderPhysicalModel#c60b5)
+flutter:                                                                                                             │        └NotificationListener<LayoutChangedNotification>
+flutter:                                                                                                             │         └_InkFeatures-[GlobalKey#e9da0 ink renderer](renderObject: _RenderInkFeatures#d8e6d)
+flutter:                                                                                                             │          └AnimatedDefaultTextStyle(duration: 200ms, debugLabel: (englishLike bodyMedium 2014).merge(blackRedwoodCity bodyMedium), inherit: false, color: Color(0xdd000000), family: .AppleSystemUIFont, size: 14.0, weight: 400, baseline: alphabetic, decoration: TextDecoration.none, softWrap: wrapping at box width, overflow: clip, state: _AnimatedDefaultTextStyleState#12f43(ticker inactive))
+flutter:                                                                                                             │           └DefaultTextStyle(debugLabel: (englishLike bodyMedium 2014).merge(blackRedwoodCity bodyMedium), inherit: false, color: Color(0xdd000000), family: .AppleSystemUIFont, size: 14.0, weight: 400, baseline: alphabetic, decoration: TextDecoration.none, softWrap: wrapping at box width, overflow: clip)
+flutter:                                                                                                             │            └Center(alignment: Alignment.center, dependencies: [Directionality], renderObject: RenderPositionedBox#b088f)
+flutter:                                                                                                             │             └TextButton(dirty, dependencies: [MediaQuery, _InheritedTheme, _LocalizationsScope-[GlobalKey#61ca6]], state: _ButtonStyleState#687c9)
+flutter:                                                                                                             │              └Semantics(container: true, properties: SemanticsProperties, tooltip: null, renderObject: RenderSemanticsAnnotations#ca411 relayoutBoundary=up1)
+flutter:                                                                                                             │               └_InputPadding(renderObject: _RenderInputPadding#60ede relayoutBoundary=up2)
+flutter:                                                                                                             │                └ConstrainedBox(BoxConstraints(56.0<=w<=Infinity, 28.0<=h<=Infinity), renderObject: RenderConstrainedBox#34800 relayoutBoundary=up3)
+flutter:                                                                                                             │                 └Material(type: button, color: Color(0x00000000), shadowColor: Color(0xff000000), textStyle.debugLabel: ((englishLike labelLarge 2014).merge(blackRedwoodCity labelLarge)).copyWith, textStyle.inherit: false, textStyle.color: MaterialColor(primary value: Color(0xff2196f3)), textStyle.family: .AppleSystemUIFont, textStyle.size: 14.0, textStyle.weight: 500, textStyle.baseline: alphabetic, textStyle.decoration: TextDecoration.none, shape: RoundedRectangleBorder(BorderSide(width: 0.0, style: none), BorderRadius.circular(4.0)), dependencies: [_InheritedTheme, _LocalizationsScope-[GlobalKey#61ca6]], state: _MaterialState#50a4d(tickers: tracking 5 tickers))
+flutter:                                                                                                             │                  └_MaterialInterior(duration: 200ms, shape: RoundedRectangleBorder(BorderSide(width: 0.0, style: none), BorderRadius.circular(4.0)), elevation: 0.0, color: Color(0x00000000), shadowColor: Color(0xff000000), dependencies: [Directionality, _InheritedTheme, _LocalizationsScope-[GlobalKey#61ca6]], state: _MaterialInteriorState#d296d(ticker inactive))
+flutter:                                                                                                             │                   └PhysicalShape(clipper: ShapeBorderClipper, elevation: 0.0, color: Color(0x00000000), shadowColor: Color(0xff000000), renderObject: RenderPhysicalShape#43df6 relayoutBoundary=up4)
+flutter:                                                                                                             │                    └_ShapeBorderPaint(dependencies: [Directionality])
+flutter:                                                                                                             │                     └CustomPaint(renderObject: RenderCustomPaint#c1a3c relayoutBoundary=up5)
+flutter:                                                                                                             │                      └NotificationListener<LayoutChangedNotification>
+flutter:                                                                                                             │                       └_InkFeatures-[GlobalKey#625bc ink renderer](renderObject: _RenderInkFeatures#54439 relayoutBoundary=up6)
+flutter:                                                                                                             │                        └AnimatedDefaultTextStyle(duration: 200ms, debugLabel: ((englishLike labelLarge 2014).merge(blackRedwoodCity labelLarge)).copyWith, inherit: false, color: MaterialColor(primary value: Color(0xff2196f3)), family: .AppleSystemUIFont, size: 14.0, weight: 500, baseline: alphabetic, decoration: TextDecoration.none, softWrap: wrapping at box width, overflow: clip, state: _AnimatedDefaultTextStyleState#2f29d(ticker inactive))
+flutter:                                                                                                             │                         └DefaultTextStyle(debugLabel: ((englishLike labelLarge 2014).merge(blackRedwoodCity labelLarge)).copyWith, inherit: false, color: MaterialColor(primary value: Color(0xff2196f3)), family: .AppleSystemUIFont, size: 14.0, weight: 500, baseline: alphabetic, decoration: TextDecoration.none, softWrap: wrapping at box width, overflow: clip)
+flutter:                                                                                                             │                          └InkWell
+flutter:                                                                                                             │                           └_InkResponseStateWidget(gestures: [tap], mouseCursor: ButtonStyleButton_MouseCursor, clipped to BoxShape.rectangle, dirty, dependencies: [Directionality, MediaQuery, _InheritedTheme, _LocalizationsScope-[GlobalKey#61ca6]], state: _InkResponseState#0b11d)
+flutter:                                                                                                             │                            └_ParentInkResponseProvider
+flutter:                                                                                                             │                             └Actions(dispatcher: null, actions: {ActivateIntent: CallbackAction<ActivateIntent>#018db, ButtonActivateIntent: CallbackAction<ButtonActivateIntent>#ef87a}, state: _ActionsState#a5eab)
+flutter:                                                                                                             │                              └_ActionsScope
+flutter:                                                                                                             │                               └Focus(dependencies: [_FocusInheritedScope], state: _FocusState#5a9de)
+flutter:                                                                                                             │                                └_FocusInheritedScope
+flutter:                                                                                                             │                                 └Semantics(container: false, properties: SemanticsProperties, tooltip: null, renderObject: RenderSemanticsAnnotations#8ac3e relayoutBoundary=up7)
+flutter:                                                                                                             │                                  └MouseRegion(listeners: [enter, exit], cursor: SystemMouseCursor(click), renderObject: RenderMouseRegion#13d4e relayoutBoundary=up8)
+flutter:                                                                                                             │                                   └Builder(dependencies: [DefaultSelectionStyle])
+flutter:                                                                                                             │                                    └DefaultSelectionStyle
+flutter:                                                                                                             │                                     └Semantics(container: false, properties: SemanticsProperties, tooltip: null, renderObject: RenderSemanticsAnnotations#d99cc relayoutBoundary=up9)
+flutter:                                                                                                             │                                      └GestureDetector(startBehavior: start, dependencies: [MediaQuery])
+flutter:                                                                                                             │                                       └RawGestureDetector(state: RawGestureDetectorState#b8d93(gestures: [tap], excludeFromSemantics: true, behavior: opaque))
+flutter:                                                                                                             │                                        └Listener(listeners: [down, panZoomStart], behavior: opaque, renderObject: RenderPointerListener#a4c3b relayoutBoundary=up10)
+flutter:                                                                                                             │                                         └Builder(dependencies: [IconTheme])
+flutter:                                                                                                             │                                          └IconTheme(color: MaterialColor(primary value: Color(0xff2196f3)))
+flutter:                                                                                                             │                                           └Padding(padding: EdgeInsets(8.0, 0.0, 8.0, 0.0), dependencies: [Directionality], renderObject: RenderPadding#18a87 relayoutBoundary=up11)
+flutter:                                                                                                             │                                            └Align(alignment: Alignment.center, widthFactor: 1.0, heightFactor: 1.0, dependencies: [Directionality], renderObject: RenderPositionedBox#fb8a8 relayoutBoundary=up12)
+flutter:                                                                                                             │                                             └Text("Dump Widget Tree", dependencies: [DefaultSelectionStyle, DefaultTextStyle, MediaQuery])
+flutter:                                                                                                             │                                              └RichText(softWrap: wrapping at box width, maxLines: unlimited, text: "Dump Widget Tree", dependencies: [Directionality, _LocalizationsScope-[GlobalKey#61ca6]], renderObject: RenderParagraph#d15aa relayoutBoundary=up13)
+flutter:                                                                                                             └PositionedDirectional(dependencies: [Directionality])
+flutter:                                                                                                              └Positioned(left: 0.0, top: 0.0, bottom: 0.0, width: 20.0)
+flutter:                                                                                                               └Listener(listeners: [down], behavior: translucent, renderObject: RenderPointerListener#d884c)
+flutter:
+flutter:
+```
diff --git a/src/tools/devtools/debugger.md b/src/tools/devtools/debugger.md
index b6ed1d93e5..20da291a45 100644
--- a/src/tools/devtools/debugger.md
+++ b/src/tools/devtools/debugger.md
@@ -39,7 +39,7 @@ breakpoints, stepping, and variable inspection.
 
 {{site.alert.end}}
 
-[`flutter_gdb`]: https://github.com/flutter/engine/blob/main/sky/tools/flutter_gdb
+[`flutter_gdb`]: {{site.repo.engine}}/blob/main/sky/tools/flutter_gdb
 
 When you open the debugger tab, you should see the source for the main
 entry-point for your app loaded in the debugger.
diff --git a/src/tools/devtools/inspector.md b/src/tools/devtools/inspector.md
index d73458eac3..1d3a30442b 100644
--- a/src/tools/devtools/inspector.md
+++ b/src/tools/devtools/inspector.md
@@ -7,6 +7,9 @@ tags: Flutter开发工具,DevTools
 keywords: Flutter inspector,widget 树
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 <?code-excerpt path-base="../examples/visual_debugging/"?>
 
 {{site.alert.note}}
@@ -193,7 +196,7 @@ the Flutter Explorer video:
 
 有关此工具的操作概述，观看 Flutter Explorer 的介绍视频：
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/Jakrc3Tn_y4" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/Jakrc3Tn_y4" title="Learn about the Layout Explorer in Flutter DevTools" {{yt-set}}></iframe>
 
 You might also find the following step-by-step article useful:
 
@@ -388,7 +391,7 @@ void setSlowAnimations() {
   timeDilation = 5.0;
 }
 ```
- 
+
 This slows the animations by 5x.
 
 这会让动画时长增加 5 倍（速度减慢 5 倍）。
@@ -401,7 +404,7 @@ The following links provide more info.
 
 以下的链接提供了更多细节内容。
 
-* [Flutter documentation: timeDilation property]({{site.api}}/flutter/scheduler/timeDilation.html) 
+* [Flutter documentation: timeDilation property]({{site.api}}/flutter/scheduler/timeDilation.html)
 
   [Flutter 文档：timeDilation 属性]({{site.api}}/flutter/scheduler/timeDilation.html) 
 
@@ -441,7 +444,7 @@ void showLayoutGuidelines() {
 
 #### RenderBox
 
-Widgets that draw to the screen create a [render box][], the 
+Widgets that draw to the screen create a [render box][], the
 building blocks of Flutter layouts. They're shown with a bright blue border:
 
 绘制在屏幕上的 widgets 会创建一个 [RenderBox][render box]，
@@ -717,7 +720,7 @@ This makes the engine decode this image at the specified size,
 and reduces memory usage (decoding and storage is still more expensive
 than if the image asset itself was shrunk).
 The image is rendered to the constraints of the layout or width and height
-regardless of these parameters. 
+regardless of these parameters.
 
 这样的方法可以让引擎以指定的大小解析图片，减少内存的消耗
 （解析开销和空间占用相较图片调整图片本身仍然较大）。
@@ -742,7 +745,7 @@ You can learn more at the following link:
 
 以下的链接提供了更多细节内容：
 
-- [Flutter documentation: debugInvertOversizedImages]({{site.api}}/flutter/painting/debugInvertOversizedImages.html)
+* [Flutter documentation: debugInvertOversizedImages]({{site.api}}/flutter/painting/debugInvertOversizedImages.html)
 
   [Flutter 文档：debugInvertOversizedImages]({{site.api}}/flutter/painting/debugInvertOversizedImages.html)
 
@@ -761,7 +764,6 @@ widget's properties, render object, and children.
 
 ![The Details Tree view]({{site.url}}/assets/images/docs/tools/devtools/inspector_details_tree.png){:width="100%"}
 
-
 ## Track widget creation
 
 ## 追踪 widget 创建
@@ -910,20 +912,16 @@ using DevTools, check out a guided
 [`Column`]: {{site.api}}/flutter/widgets/Column-class.html
 [common problems when debugging]: {{site.url}}/testing/debugging#common-problems
 [`crossAxisAlignment`]: {{site.api}}/flutter/widgets/Flex/crossAxisAlignment.html
-[DartConf 2018 talk]: https://www.bilibili.com/video/BV1h4411575y/
+[DartConf 2018 talk]: {{bili-video}}/BV1h4411575y/
 [debug mode]: {{site.url}}/testing/build-modes#debug
-[Debugging Flutter apps]: {{site.url}}/testing/debugging
-[DevTools written in Flutter]: {{site.url}}/tools/devtools/overview#how-do-i-try-devtools-written-in-flutter
 [`Flex`]: {{site.api}}/flutter/widgets/Flex-class.html
 [flex layouts]: {{site.api}}/flutter/widgets/Flex-class.html
 [`FlexFit`]: {{site.api}}/flutter/rendering/FlexFit.html
 [`FlexParentData.fit`]: {{site.api}}/flutter/rendering/FlexParentData/fit.html
 [`FlexParentData.flex`]: {{site.api}}/flutter/rendering/FlexParentData/flex.html
-[Flutter performance profiling]: {{site.url}}/perf/ui-performance
 [`mainAxisAlignment`]: {{site.api}}/flutter/widgets/Flex/mainAxisAlignment.html
 [`mainAxisSize`]: {{site.api}}/flutter/widgets/Flex/mainAxisSize.html
 [`Row`]: {{site.api}}/flutter/widgets/Row-class.html
 [`textDirection`]: {{site.api}}/flutter/widgets/Flex/textDirection.html
-[the performance overlay]: {{site.url}}/perf/ui-performance#the-performance-overlay
 [Understanding constraints]: {{site.url}}/ui/layout/constraints
 [inspector-tutorial]: {{site.medium}}/@fluttergems/mastering-dart-flutter-devtools-flutter-inspector-part-2-of-8-bbff40692fc7
diff --git a/src/tools/devtools/memory.md b/src/tools/devtools/memory.md
index d7d769200d..e0b761da1a 100644
--- a/src/tools/devtools/memory.md
+++ b/src/tools/devtools/memory.md
@@ -7,6 +7,8 @@ tags: Flutter开发工具,DevTools
 keywords: 开发者工具,内存视图,Dart
 ---
 
+{% include docs/yt_shims.liquid %}
+
 The memory view provides insights into details
 of the application's memory allocation and
 tools to detect and debug specific issues.
@@ -368,12 +370,12 @@ The quantities plotted on the y-axis are as follows:
   For more information, see [Dart VM internals][].
 
 [Command-line and server apps]: {{site.dart-site}}/server
-[Custom Flutter engine embedders]: {{site.github}}/flutter/flutter/wiki/Custom-Flutter-Engine-Embedders
+[Custom Flutter engine embedders]: {{site.repo.flutter}}/wiki/Custom-Flutter-Engine-Embedders
 [Dart VM internals]: https://mrale.ph/dartvm/
 [DevTools Performance view]: {{site.url}}/tools/devtools/performance
 [Flutter architectural overview]: {{site.url}}/resources/architectural-overview
 [frog]: https://dartfrog.vgv.dev/
-[heroku]: {{site.youtube-site}}/watch?v=nkTUMVNelXA
+[heroku]: {{yt-watch}}?v=nkTUMVNelXA
 
 ### Profile Memory tab
 
diff --git a/src/tools/devtools/overview.md b/src/tools/devtools/overview.md
index e424342195..98ebd178bb 100644
--- a/src/tools/devtools/overview.md
+++ b/src/tools/devtools/overview.md
@@ -5,6 +5,8 @@ description: How to use the DevTools with Flutter.
 description: 学习如何在 Flutter 里使用开发者工具。
 ---
 
+{% include docs/yt_shims.liquid %}
+
 ## What is DevTools?
 
 ## 开发工具是什么？
@@ -20,8 +22,8 @@ for Dart and Flutter.
 For a video introduction to DevTools, check out
 the following deep dive and use case walkthrough:
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/_EYk-E29edo" title="YouTube video player - Dive in to DevTools" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
-[Dive in to DevTools](https://www.youtube.com/watch?v=_EYk-E29edo)
+<iframe width="560" height="315" src="{{yt-embed}}/_EYk-E29edo" title="Dive in to Flutter DevTools" {{yt-set}}></iframe>
+[Dive in to DevTools]({{yt-watch}}?v=_EYk-E29edo)
 
 ## What can I do with DevTools?
 
@@ -72,6 +74,7 @@ your existing IDE or command-line based development workflow.
 我们希望您将开发工具与现有的 IDE 或基于命令行的开发流程结合起来使用。
 
 <a id="install-devtools"></a>
+
 ## How do I install DevTools?
 
 ## 如何安装开发工具？
@@ -141,8 +144,6 @@ Flutter 可能会利用这个机会来收集创建的对象，而不会影响性
 [Performance > Timeline]: {{site.url}}/tools/devtools/performance#timeline-events-tab
 [UI frames]: {{site.url}}/perf/ui-performance
 
-
-
 ## Providing feedback
 
 ## 提交反馈
@@ -164,7 +165,7 @@ in particular, its list of [other resources][].
 请查阅 [调试][Debugging] 页面，尤其是
 [其他资源][other resources] 列表。
 
-For more information on using DevTools with Dart command-line apps, see the 
+For more information on using DevTools with Dart command-line apps, see the
 [DevTools documentation on dart.dev]({{site.dart-site}}/tools/dart-devtools).
 
 果你希望知道更多如何在命令行下使用开发者工具 (DevTools) 的话，
diff --git a/src/tools/devtools/performance.md b/src/tools/devtools/performance.md
index 4611ebc007..f271a97dc6 100644
--- a/src/tools/devtools/performance.md
+++ b/src/tools/devtools/performance.md
@@ -7,11 +7,13 @@ tags: Flutter开发工具,DevTools
 keywords: 开发者工具,性能视图,Dart,性能优化
 ---
 
+{% include docs/yt_shims.liquid %}
+
 {{site.alert.note}}
 
   The DevTools performance view works for Flutter mobile and desktop apps.
   For web apps, Flutter adds timeline events to the
-  performance panel of Chrome DevTools instead. 
+  performance panel of Chrome DevTools instead.
   To learn about profiling web apps, check out [Debugging web performance][].
 
   性能视图可用于 Flutter 移动端、Flutter 桌面端、Dart 和 Flutter 网页端应用。
@@ -86,7 +88,7 @@ Flutter is designed to render its UI at 60 frames per second
 Each render is called a _frame_.
 This means that, approximately every 16ms, the UI updates
 to reflect animations or other changes to the UI. A frame
-that takes longer than 16ms to render causes jank 
+that takes longer than 16ms to render causes jank
 (jerky motion) on the display device.
 
 Flutter 的 UI 设计为每秒渲染 60 帧（fps），或者在支持 120Hz 更新的设备上为 120 帧。
@@ -131,7 +133,7 @@ The flutter frames chart updates when new frames
 are drawn in your app. To pause updates to this chart,
 click the pause button to the right of the chart.
 This chart can be collapsed to provide more viewing space
-for data below by clicking the **Flutter frames** button above the chart. 
+for data below by clicking the **Flutter frames** button above the chart.
 
 在应用程序运行过程中绘制新的帧时，会更新 Flutter 帧图表。
 点击图表右侧的暂停按钮就可以暂停图表的更新，
@@ -352,7 +354,7 @@ your application, click the refresh button
 
 ## 高级调试工具
 
-### Enhance tracing 
+### Enhance tracing
 
 ### 增强的追踪选项
 
@@ -391,6 +393,8 @@ The name of the widget is shown in the timeline event.
 
 ![Screenshot of track widget builds]({{site.url}}/assets/images/docs/tools/devtools/track-widget-builds.png)
 
+[Watch this video for an example of tracking widget builds][track-widgets]
+
 ### Track layouts
 
 ### 追踪布局
@@ -402,6 +406,8 @@ enable the **Track Layouts** option:
 
 ![Screenshot of track layouts]({{site.url}}/assets/images/docs/tools/devtools/track-layouts.png)
 
+[Watch this video for an example of tracking layouts][track-layouts]
+
 ### Track paints
 
 ### 追踪绘制
@@ -414,6 +420,8 @@ enable the **Track Paints** option:
 
 ![Screenshot of track paints]({{site.url}}/assets/images/docs/tools/devtools/track-paints.png)
 
+[Watch this video for an example of tracking paints][track-paints]
+
 ## More debugging options
 
 ## 更多调试选项
@@ -505,3 +513,6 @@ detect jank using DevTools, check out a guided
 [Reduce shader compilation jank on mobile]: {{site.url}}/perf/shader
 [Import and export]: #import-and-export
 [performance-tutorial]: {{site.medium}}/@fluttergems/mastering-dart-flutter-devtools-performance-view-part-8-of-8-4ae762f91230
+[track-widgets]: {{yt-watch}}/_EYk-E29edo?t=623
+[track-layouts]: {{yt-watch}}/_EYk-E29edo?t=676
+[track-paints]: {{yt-watch}}/_EYk-E29edo?t=748
diff --git a/src/tools/devtools/release-notes/index.md b/src/tools/devtools/release-notes/index.md
index 90550ea4ca..9348ed00c8 100644
--- a/src/tools/devtools/release-notes/index.md
+++ b/src/tools/devtools/release-notes/index.md
@@ -10,7 +10,7 @@ toc: false
 
 This page summarizes the changes in official stable releases of DevTools.
 To view a complete list of changes, check out the
-[DevTools git log](https://github.com/flutter/devtools/commits/master).
+[DevTools git log]({{site.repo.organization}}/devtools/commits/master).
 
 本篇链接的是 Flutter 和 Dart DevTools 的公告和发行注记。
 如果你想查看完整的变更内容，你可以查看
diff --git a/src/tools/flutter-fix.md b/src/tools/flutter-fix.md
index c7e572d986..5f33d14bf2 100644
--- a/src/tools/flutter-fix.md
+++ b/src/tools/flutter-fix.md
@@ -4,6 +4,8 @@ description: Keep your code up to date with the help of the Flutter Fix feature.
 description: 使用 Flutter Fix 帮助您的应用跟进最新的 API 用法。
 ---
 
+{% include docs/yt_shims.liquid %}
+
 As Flutter continues to evolve, we provide a tool to help you clean up
 deprecated APIs from your codebase. The tool ships as part of Flutter, and
 suggests changes that you might want to make to your code. The tool is available
@@ -137,4 +139,4 @@ on Flutter's Medium publication.
 
 [Deprecation lifetime in Flutter]: {{site.flutter-medium}}/deprecation-lifetime-in-flutter-e4d76ee738ad
 [`dart fix`]: {{site.dart-site}}/tools/dart-fix
-[dart fix Decoding Flutter]: {{site.youtube-site}}/watch?v=OBIuSrg_Quo
+[dart fix Decoding Flutter]: {{yt-watch}}?v=OBIuSrg_Quo
diff --git a/src/ui/accessibility-and-internationalization/accessibility.md b/src/ui/accessibility-and-internationalization/accessibility.md
index 6d3246967a..850dc9cb0c 100644
--- a/src/ui/accessibility-and-internationalization/accessibility.md
+++ b/src/ui/accessibility-and-internationalization/accessibility.md
@@ -6,6 +6,9 @@ tags: Flutter开发
 keywords: 联合国关于残疾人权利,CRPD,无障碍
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 Ensuring apps are accessible to a broad range of users is an essential
 part of building a high-quality app. Applications that are poorly
 designed create barriers to people of all ages. The [UN Convention on
@@ -20,7 +23,7 @@ recognize the business advantages of maximizing access to their services.
 世界各地也都要求提供无障碍的环境；
 同样，公司也认识到了最大限度覆盖服务的优势所在。
 
-We strongly encourage you to include an accessibility checklist 
+We strongly encourage you to include an accessibility checklist
 as a key criteria before shipping your app. Flutter is committed to
 supporting developers in making their apps more accessible, and includes
 first-class framework support for accessibility in addition to that
@@ -64,9 +67,9 @@ we recommend using automated accessibility scanners:
 关于无障碍功能检测的细节，我们将在下面讨论。
 除了测试这些特定主题外，我们还建议您使用自动辅助功能扫描程序：
 
-  * For Android:
+* For Android:
 
-    对于 Android:
+  对于 Android:
 
     1. Install the [Accessibility Scanner][] for Android
 
@@ -83,9 +86,9 @@ we recommend using automated accessibility scanners:
 
        在导航栏找到辅助扫描仪复选框按钮启动扫描
 
-  * For iOS:
+* For iOS:
 
-    对于 iOS:
+  对于 iOS:
 
     1. Open the `iOS` folder of your Flutter app in Xcode
 
@@ -115,9 +118,9 @@ we recommend using automated accessibility scanners:
        在辅助检查器中，选择工具栏中的 **审核**，
        然后选择 **运行音频** 来获取潜在问题的报告
  
-  * For web:
+* For web:
 
-    对于 web:
+  对于 web:
 
     1. Open Chrome DevTools (or similar tools in other browsers)
 
@@ -127,7 +130,7 @@ we recommend using automated accessibility scanners:
 
        检查包含 Flutter 生成的 ARIA 属性的 HTML 树。
 
-    3. In Chrome, the "Elements" tab has a "Accessibility" sub-tab 
+    3. In Chrome, the "Elements" tab has a "Accessibility" sub-tab
        that can be used to inspect the data exported to semantics tree
 
        在 Chrome 中，「Elements」选项卡中有一个「Accessbility」子选项卡，
@@ -188,7 +191,7 @@ Flutter 应用程序，和使用 iOS 辅助功能设置中选择的最大字体
 For mobile, screen readers ([TalkBack][], [VoiceOver][])
 enable visually impaired users to get spoken feedback about
 the contents of the screen and interact with the UI by using
-gestures on mobile and keyboard shortcuts on desktop. 
+gestures on mobile and keyboard shortcuts on desktop.
 Turn on VoiceOver or TalkBack on your mobile device and
 navigate around your app.
 
@@ -243,7 +246,7 @@ accessibility features, view the following video.
 请观看以下视频，
 了解如何查找和自定义 Android 的辅助功能/无障碍。
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/FQyj_XTl01w" title="Customize accessibility features on Pixel" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
+<iframe width="560" height="315" src="{{yt-embed}}/FQyj_XTl01w" title="Learn about the accessibility features on the Google Pixel" {{yt-set}}>
 </iframe>
 
 </div>
@@ -264,7 +267,7 @@ accessibility features, view the following video.
 请观看以下视频，
 了解如何查找和自定义 iOS 的辅助功能。
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/qDm7GiKra28" title="How to navigate your iPhone or iPad with VoiceOver" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
+<iframe width="560" height="315" src="{{yt-embed}}/qDm7GiKra28" title="Learn how to navigate your iPhone or iPad with VoiceOver" {{yt-set}}>
 </iframe>
 
 </div>
@@ -330,8 +333,7 @@ which is included in macOS.
 
 在 Mac 上，你可以使用 macOS 自带的桌面版旁白 (VoiceOver)。
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/5R-6WvAihms" title="Screen Reader Basics: VoiceOver -- A11ycasts #07" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen>
-</iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/5R-6WvAihms" title="Learn about the macOS VoiceOver screen reader" {{yt-set}}></iframe>
 
 On Linux, a popular screen reader is called Orca.
 It comes pre-installed with some distributions
@@ -352,15 +354,15 @@ To learn about using Orca, check out
 
 <br/>
 
-Check out the following [video demo][] to see 
-Victor Tsaran, who leads the Accessibility program for Material Design, 
+Check out the following [video demo][] to see
+Victor Tsaran, who leads the Accessibility program for Material Design,
 using VoiceOver with the Flutter Gallery web app.
 
 查看此 [视频演示][video demo]，了解 Victor Tsaran，
 他领导了 Material Design 的辅助功能计划，
 并在 Flutter Gallery Web 应用程序中使用了 VoiceOver。
 
-Flutter's standard widgets generate an accessibility tree automatically. 
+Flutter's standard widgets generate an accessibility tree automatically.
 However, if your app needs something different,
 it can be customized using the [`Semantics` widget][].
 
@@ -444,7 +446,7 @@ widgets to offer a dramatically more accessible experience.
 Flutter 内置的 widget，
 以提供更加便捷的体验。
 
-<iframe width="560" height="315" src="https://player.bilibili.com/player.html?aid=630361140&bvid=BV1N84y1c7hW&cid=331074861&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=630361140&bvid=BV1N84y1c7hW&cid=331074861&page=1&autoplay=false" title="Learn about building Flutter apps with Accessibility in mind" {{bili-set}}></iframe>
 
 ## Testing accessibility on mobile
 
@@ -512,12 +514,12 @@ using the following command line flag in profile and release modes:
 使用以下命令行标志可视化为你的 Web 应用程序创建的语义节点来调试无障碍：
 
 ```terminal
-$ flutter run -d chrome --profile --dart-define=FLUTTER_WEB_DEBUG_SHOW_SEMANTICS=true
+flutter run -d chrome --profile --dart-define=FLUTTER_WEB_DEBUG_SHOW_SEMANTICS=true
 ```
- 
+
 With the flag activated, the semantic nodes appear on top of the widgets;
 you can verify that the semantic elements are placed where they should be.
-If the semantic nodes are incorrectly placed, please [file a bug report][]. 
+If the semantic nodes are incorrectly placed, please [file a bug report][].
 
 标记激活后，语义节点出现在 widget 的顶部；
 你可以验证语义元素是否放置在应有的位置。
@@ -532,7 +534,7 @@ app for release.
 
 这里是一些应用发布前的你需要考虑的部分清单。
 
-- **Active interactions**. Ensure that all active interactions do
+* **Active interactions**. Ensure that all active interactions do
 something. Any button that can
 be pushed should do something when pushed. For example, if you have a
 no-op callback for an `onPressed` event, change it to show a `SnackBar`
@@ -543,7 +545,7 @@ on the screen explaining which control you just pushed.
   例如，如果你有一个“onPressed”事件的无操作回调，
   请改为显示一个“SnackBar”，并告诉用户刚才按下了哪个控件。
 
-- **Screen reader testing**. The screen reader should be able to
+* **Screen reader testing**. The screen reader should be able to
 describe all controls on the page when you tap on them, and the
 descriptions should be intelligible. Test your app with [TalkBack][]
 (Android) and [VoiceOver][] (iOS).
@@ -553,15 +555,15 @@ descriptions should be intelligible. Test your app with [TalkBack][]
   并且描述应易于理解。请使用 [TalkBack][]（Android）
   以及 [VoiceOver][] (iOS) 测试你的应用。
 
-  **Contrast ratios**. We encourage you to have a contrast ratio of at
+* **Contrast ratios**. We encourage you to have a contrast ratio of at
 least 4.5:1 between controls or text and the background, with the
 exception of disabled components. Images should also be vetted for
-sufficient contrast. 
+sufficient contrast.
 
   **对比度**。我们建议你至少将控件或文本与背景之间的比例
   设为 4.5 : 1，禁用的组件除外。图片也应该经过审核足够的对比度。
 
-- **Context switching**. Nothing should change the user's context
+* **Context switching**. Nothing should change the user's context
 automatically while typing in information. Generally, the widgets
 should avoid changing the user's context without some sort of
 confirmation action.
@@ -570,25 +572,25 @@ confirmation action.
   通常来说，widget 应该避免在没有任何确认动作的情况下
   更改用户的上下文。
 
-- **Tappable targets**. All tappable targets should be at least 48x48
+* **Tappable targets**. All tappable targets should be at least 48x48
 pixels.
 
   **可点击的目标**。所有可点击的目标平均
   至少应为 48x48 像素。
 
-- **Errors**. Important actions should be able to be undone. In fields
+* **Errors**. Important actions should be able to be undone. In fields
 that show errors, suggest a correction if possible.
 
   **错误**。所有重要动作应该能够被撤销。
   在有限范围内显示错误原因，
   如果可能的话，提供订正建议。
 
-- **Color vision deficiency testing**. Controls should be usable and
+* **Color vision deficiency testing**. Controls should be usable and
 legible in colorblind and grayscale modes.
 
   **色觉不足测试**。控件应该可用并且在色盲和灰度模式下清晰可见。
 
-- **Scale factors**. The UI should remain legible and usable at very
+* **Scale factors**. The UI should remain legible and usable at very
 large scale factors for text size and display scaling.
 
   **比例系数**。 文本大小和显示比例的用户界面应保持清晰易用。
@@ -619,5 +621,5 @@ the following articles written by community members:
 [TalkBack]: https://support.google.com/accessibility/android/answer/6283677?hl=en
 [W3C recommends]: https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html
 [VoiceOver]: https://www.apple.com/lae/accessibility/iphone/vision/
-[video demo]: {{site.youtube-site}}/watch?v=A6Sx0lBP8PI
+[video demo]: {{yt-watch}}?v=A6Sx0lBP8PI
 [file a bug report]: https://goo.gle/flutter_web_issue
diff --git a/src/ui/accessibility-and-internationalization/internationalization.md b/src/ui/accessibility-and-internationalization/internationalization.md
index 0c84118b90..cf08d6463a 100644
--- a/src/ui/accessibility-and-internationalization/internationalization.md
+++ b/src/ui/accessibility-and-internationalization/internationalization.md
@@ -89,14 +89,18 @@ To add support for other languages,
 an application must specify additional
 `MaterialApp` (or `CupertinoApp`) properties,
 and include a package called `flutter_localizations`.
-As of June 2023, this package supports [113 languages][]
+As of December 2023, this package supports [115 languages][language-count]
 and language variants.
 
+{% comment %}
+Consider updating the number of languages when touching this page.
+{% endcomment %}
+
 默认情况下，Flutter 只提供美式英语的本地化。
 如果想要添加其他语言，你的应用必须指定额外的
 `MaterialApp` 或者 `CupertinoApp` 属性并且
 添加一个名为 `flutter_localizations` 的 package。
-截至到 2023 年 1 月份，这个 package 已经支持大约 [113 种语言][113 languages]。
+截至到 2023 年 12 月份，这个 package 已经支持 [115 种语言][language-count]。
 
 To begin, start by creating a new Flutter application
 in a directory of your choice with the `flutter create` command.
@@ -166,12 +170,12 @@ After introducing the `flutter_localizations` package
 and adding the previous code,
 the `Material` and `Cupertino`
 packages should now be correctly localized in
-one of the 113 supported locales.
+one of the 115 supported locales.
 Widgets should be adapted to the localized messages,
 along with correct left-to-right or right-to-left layout.
 
 引入 `flutter_localizations` package 并添加了上面的代码之后，
-`Material` 和 `Cupertino` 包现在应该被正确地本地化为 113 个受支持的语言环境之一。
+`Material` 和 `Cupertino` 包现在应该被正确地本地化为 115 个受支持的语言环境之一。
 widget 应当与本地化信息保持同步，并具有正确的从左到右或从右到左的布局。 
 
 Try switching the target platform's locale to
@@ -219,7 +223,7 @@ structured, is covered in this page.
 它们依赖的类型以及那些国际化的 Flutter app 通常是如何组织的，
 可以继续阅读下面内容。
 
-[113 languages]: {{site.api}}/flutter/flutter_localizations/GlobalMaterialLocalizations-class.html
+[language-count]: {{site.api}}/flutter/flutter_localizations/GlobalMaterialLocalizations-class.html
 
 <a id="overriding-locale"></a>
 ### Overriding the locale
@@ -442,9 +446,11 @@ complete the following instructions:
    );
    ```
 
-8. Now you can use `AppLocalizations` anywhere in your app:
+8. Once the Material app has started,
+   you can use `AppLocalizations` anywhere in your app:
 
-   现在，你可以在应用的任意地方使用 `AppLocalizations` 了:
+   Material 应用启动后，
+   你就可以在应用的任意地方使用 `AppLocalizations` 了:
 
    <?code-excerpt "gen_l10n_example/lib/main.dart (InternationalizedTitle)"?>
    ```dart
@@ -457,6 +463,19 @@ complete the following instructions:
    ),
    ```
 
+{{site.alert.note}}
+
+  The Material app has to actually be started to initialize
+  `AppLocalizations`. If the app hasn't yet started,
+  `AppLocalizations.of(context)!.helloWorld` causes a
+  null exception.
+
+  Material 应用必须启动完成后才能初始化 `AppLocalizations`。
+  如果应用尚未完全启动，
+  `AppLocalizations.of(context)!.helloWorld` 将导致空异常。
+
+{{site.alert.end}}
+
    This code generates a `Text` widget that displays "Hello World!"
    if the target device's locale is set to English,
    and "¡Hola Mundo!" if the target device's locale is set
@@ -1084,11 +1103,11 @@ Locale myLocale = Localizations.localeOf(context);
 ### 指定应用程序 supported­Locales 参数
 
 Although the `flutter_localizations` library currently supports
-113 languages and language variants, only English language translations
+115 languages and language variants, only English language translations
 are available by default. It's up to the developer to decide exactly
 which languages to support.
 
-尽管 `flutter_localizations` 库目前支持 113 种语言和语言变体，
+尽管 `flutter_localizations` 库目前支持 115 种语言和语言变体，
 但默认情况下仅提供英语译文。
 具体支持哪些语言由开发人员决定。
 
diff --git a/src/ui/animations/hero-animations.md b/src/ui/animations/hero-animations.md
index 67599671c8..a286b5a2ef 100644
--- a/src/ui/animations/hero-animations.md
+++ b/src/ui/animations/hero-animations.md
@@ -8,34 +8,37 @@ tags: 用户界面,Flutter UI,动画
 keywords: 共享元素过渡,补间动画
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 {{site.alert.secondary}}
 
   <h4 class="no_toc">What you'll learn</h4>
 
   <h4 class="no_toc">你将会在这里学到：</h4>
 
-  * The _hero_ refers to the widget that flies between screens.
+* The _hero_ refers to the widget that flies between screens.
+
+  **Hero** 指的是在屏幕间飞跃的 widget。
   
-    **Hero** 指的是在屏幕间飞跃的 widget。
-    
-  * Create a hero animation using Flutter's Hero widget.
+* Create a hero animation using Flutter's Hero widget.
+
+  用 Flutter's Hero widget 创建 hero 动画。
   
-    用 Flutter's Hero widget 创建 hero 动画。
-    
-  * Fly the hero from one screen to another.
+* Fly the hero from one screen to another.
+
+  使 hero 从原页面飞至新页面。
   
-    使 hero 从原页面飞至新页面。
-    
-  * Animate the transformation of a hero's shape from circular to
-    rectangular while flying it from one screen to another.
-    
-    当 hero 从原页面飞至新页面时，使 hero 的形状由圆形动态过渡为正方形。
-    
-  * The Hero widget in Flutter implements a style of animation
-    commonly known as _shared element transitions_ or
-    _shared element animations._
+* Animate the transformation of a hero's shape from circular to
+  rectangular while flying it from one screen to another.
+  
+  当 hero 从原页面飞至新页面时，使 hero 的形状由圆形动态过渡为正方形。
+  
+* The Hero widget in Flutter implements a style of animation
+  commonly known as _shared element transitions_ or
+  _shared element animations._
     
-    Flutter 中的 Hero widget 实现的动画类型也称为 **共享元素过渡** 或 **共享元素动画**。
+  Flutter 中的 Hero widget 实现的动画类型也称为 **共享元素过渡** 或 **共享元素动画**。
 
 {{site.alert.end}}
 
@@ -54,7 +57,7 @@ You might want to watch this one-minute video introducing the Hero widget:
 
 下面的一分钟视频介绍了 Hero widget：
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=55794187&cid=97537277&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=55794187&cid=97537277&page=1&autoplay=false" title="Learn about the Hero Flutter Widget" {{bili-set}}></iframe>
 
 This guide demonstrates how to build standard hero animations, and hero
 animations that transform the image from a circular shape to a square shape
@@ -69,13 +72,13 @@ during flight.
 
   **示例**: 这个指南在下面的链接中为每种类型的 hero 动画提供示例。
 
-  * [Standard hero animation code][]
+* [Standard hero animation code][]
 
-    [标准 hero 动画代码][Standard hero animation code]
+  [标准 hero 动画代码][Standard hero animation code]
 
-  * [Radial hero animation code][]
+* [Radial hero animation code][]
 
-    [径向 hero 动画代码][Radial hero animation code]
+  [径向 hero 动画代码][Radial hero animation code]
 
 {{site.alert.end}}
 
@@ -141,12 +144,7 @@ the original route.
 点击蓝色页面中的 flippers（或者使用设备的回到前页手势），
 它将返回原页面。
 
-<div class="embedded-video-wrapper">
-  <iframe class="embedded-video-wrapper__frame"
-    src="//player.bilibili.com/player.html?aid=55796337&cid=97541029&page=3&autoplay=false"
-    frameborder="0" allowfullscreen>
-  </iframe>
-</div>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=55796337&cid=97541029&page=3&autoplay=false" title="Watch this example of a standard hero animation in Flutter" {{bili-set-short}}></iframe>
 
 <br>**Radial hero animations**<br>
 
@@ -171,12 +169,7 @@ the original route, displayed with a circular shape.
 其飞至新页面，并变成正方形。
 点击正方形图像，hero 返回至原页面，并变回圆形。
 
-<div class="embedded-video-wrapper">
-  <iframe class="embedded-video-wrapper__frame"
-    src="//player.bilibili.com/player.html?aid=55796337&cid=97540547&page=1&autoplay=false"
-    frameborder="0" allowfullscreen>
-  </iframe>
-</div>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=55796337&cid=97540547&page=1&autoplay=false" title="Watch this example of a radial hero animation in Flutter" {{bili-set-short}}></iframe>
 
 <br>Before moving to the sections specific to
 [standard](#standard-hero-animations)
@@ -192,6 +185,7 @@ how Flutter performs a hero animation.
 以及 [幕后](#behind-the-scenes) 来了解 Flutter 如何显示一个 hero 动画。
 
 <a id="basic-structure"></a>
+
 ## Basic structure of a hero animation
 
 ## hero 动画基本结构
@@ -202,29 +196,29 @@ how Flutter performs a hero animation.
 
   <h4 class="no_toc">要点列表</h4>
 
-  * Use two hero widgets in different routes but with matching tags to
-    implement the animation.
+* Use two hero widgets in different routes but with matching tags to
+  implement the animation.
 
-    在不同页面分别使用两个 hero widgets，同时使用配对的标签来实现动画。
+  在不同页面分别使用两个 hero widgets，同时使用配对的标签来实现动画。
 
-  * The Navigator manages a stack containing the app's routes.
+* The Navigator manages a stack containing the app's routes.
 
-    Navigator 管理含有 app 页面的堆栈。
+  Navigator 管理含有 app 页面的堆栈。
 
-  * Pushing a route on or popping a route from the Navigator's stack
-    triggers the animation.
+* Pushing a route on or popping a route from the Navigator's stack
+  triggers the animation.
 
-    推送一个页面或弹出一个 Navigator 堆栈中的页面会触发动画。
+  推送一个页面或弹出一个 Navigator 堆栈中的页面会触发动画。
 
-  * The Flutter framework calculates a rectangle tween,
-    [`RectTween`][] that defines the hero's boundary
-    as it flies from the source to the destination route.
-    During its flight, the hero is moved to
-    an application overlay, so that it appears on top of both routes.
+* The Flutter framework calculates a rectangle tween,
+  [`RectTween`][] that defines the hero's boundary
+  as it flies from the source to the destination route.
+  During its flight, the hero is moved to
+  an application overlay, so that it appears on top of both routes.
 
-    Flutter 框架设置了一个 [RectTween 类][`RectTween`]，
-    用来定义 hero 从原页面飞至目标页面的边界。
-    在飞翔过程中，hero 移动到一个应用图层，这样它可以在两个页面上方显示。
+  Flutter 框架设置了一个 [RectTween 类][`RectTween`]，
+  用来定义 hero 从原页面飞至目标页面的边界。
+  在飞翔过程中，hero 移动到一个应用图层，这样它可以在两个页面上方显示。
 
 {{site.alert.end}}
 
@@ -456,22 +450,22 @@ implement hero animations:
 
   <h4 class="no_toc">要点</h4>
 
-  * Specify a route using `MaterialPageRoute`, `CupertinoPageRoute`,
-    or build a custom route using `PageRouteBuilder`.
-    The examples in this section use MaterialPageRoute.
+* Specify a route using `MaterialPageRoute`, `CupertinoPageRoute`,
+  or build a custom route using `PageRouteBuilder`.
+  The examples in this section use MaterialPageRoute.
 
-    使用 MaterialPageRoute，CupertinoPageRoute 指定页面，
-    或使用 PageRouteBuilder 创建自定义页面。本章节示例使用的时 MaterialPageRoute。
+  使用 MaterialPageRoute，CupertinoPageRoute 指定页面，
+  或使用 PageRouteBuilder 创建自定义页面。本章节示例使用的时 MaterialPageRoute。
 
-  * Change the size of the image at the end of the transition by
-    wrapping the destination's image in a `SizedBox`.
-    
-    在过渡的最后，通过在 `SizedBox` 中裹挟目标图像来改变图像大小。
-    
-  * Change the location of the image by placing the destination's
-    image in a layout widget. These examples use `Container`.
+* Change the size of the image at the end of the transition by
+  wrapping the destination's image in a `SizedBox`.
+  
+  在过渡的最后，通过在 `SizedBox` 中裹挟目标图像来改变图像大小。
+  
+* Change the location of the image by placing the destination's
+  image in a layout widget. These examples use `Container`.
     
-    通过在布局 widget 中放置目标图像来改变图像位置。这些示例中使用 `Container`。
+  通过在布局 widget 中放置目标图像来改变图像位置。这些示例中使用 `Container`。
 
 {{site.alert.end}}
 
@@ -557,7 +551,7 @@ The PhotoHero builds the following widget tree:
 
 <div class="text-center mb-4" markdown="1">
 
-  ![PhotoHero class widget tree]({{site.url}}/assets/images/docs/ui/animations/photohero-class.png)    
+  ![PhotoHero class widget tree]({{site.url}}/assets/images/docs/ui/animations/photohero-class.png)
 
 </div>
 
@@ -733,23 +727,23 @@ Key information:
 
   <h4 class="no_toc">要点</h4>
 
-  * A _radial transformation_ animates a circular shape into a square
-    shape.
-    
-    **径向过渡** 是由圆形变成正方形的过渡动画。
-    
-  * A radial _hero_ animation performs a radial transformation while
-    flying the hero from the source route to the destination route.
-    
-    径向 **hero** 动画在 hero 从原页面飞至目标页面时，执行径向过渡。
-    
-  * MaterialRectCenter&shy;Arc&shy;Tween defines the tween animation.
+* A _radial transformation_ animates a circular shape into a square
+  shape.
+  
+  **径向过渡** 是由圆形变成正方形的过渡动画。
   
-    MaterialRectCenter&shy;Arc&shy;Tween 定义了补间动画。
+* A radial _hero_ animation performs a radial transformation while
+  flying the hero from the source route to the destination route.
   
-  * Build the destination route using `PageRouteBuilder`.
+  径向 **hero** 动画在 hero 从原页面飞至目标页面时，执行径向过渡。
   
-    使用 PageRouteBuilder 创建目标页。
+* MaterialRectCenter&shy;Arc&shy;Tween defines the tween animation.
+
+  MaterialRectCenter&shy;Arc&shy;Tween 定义了补间动画。
+
+* Build the destination route using `PageRouteBuilder`.
+
+  使用 PageRouteBuilder 创建目标页。
 
 {{site.alert.end}}
 
@@ -978,7 +972,7 @@ To do this, it builds the following widget tree:
 
 <div class="text-center mb-4" markdown="1">
 
-  ![RadialExpansion widget tree]({{site.url}}/assets/images/docs/ui/animations/radial-expansion-class.png)    
+  ![RadialExpansion widget tree]({{site.url}}/assets/images/docs/ui/animations/radial-expansion-class.png)
 
 </div>
 
@@ -1019,22 +1013,22 @@ Key information:
 
 重要信息：
 
-- The hero wraps the `RadialExpansion` widget.
+* The hero wraps the `RadialExpansion` widget.
 
   hero 包裹 `RadialExpansion` widget。
 
-- As the hero flies, its size changes and,
+* As the hero flies, its size changes and,
   because it constrains its child's size,
   the `RadialExpansion` widget changes size to match.
   
   hero 飞翔时会改变大小，因为它限制了 child 的大小，
   所以 `RadialExpansion` widget 会改变大小以匹配。
   
-- The `RadialExpansion` animation is created by two overlapping clips.
+* The `RadialExpansion` animation is created by two overlapping clips.
 
   `RadialExpansion` 动画由两个重叠的剪裁创建。
 
-- The example defines the tweening interpolation using
+* The example defines the tweening interpolation using
   [`MaterialRectCenterArcTween`][].
   The default flight path for a hero animation
   interpolates the tweens using the corners of the heroes.
@@ -1091,4 +1085,3 @@ Key information:
 [`Route`]: {{site.api}}/flutter/widgets/Route-class.html
 [Standard hero animation code]: #standard-hero-animation-code
 [Tween&lt;Rect&gt;]: {{site.api}}/flutter/animation/Tween-class.html
-[watch this issue]: {{site.repo.flutter}}/issues/10667
diff --git a/src/ui/animations/implicit-animations.md b/src/ui/animations/implicit-animations.md
index 9d5710a623..024a6f8c09 100644
--- a/src/ui/animations/implicit-animations.md
+++ b/src/ui/animations/implicit-animations.md
@@ -7,6 +7,9 @@ tags: 用户界面,Flutter UI,动画
 keywords: 隐式动画
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 With Flutter's [animation library][],
 you can add motion and create visual effects
 for the widgets in your UI.
@@ -64,13 +67,19 @@ The following videos cover topics
 that are relevant to implicit animations.
 
 聚焦 Flutter 视频以 5 到 10 分钟的实战代码为特点，涵盖了每个 Flutter 开发人员都需要从头到尾了解的技术。
-下列视频涵盖了所有与隐性动画相关的话题。
+下列视频涵盖了所有与隐式动画相关的话题。
+
+<iframe width="560" height="315" src="{{yt-embed}}/IVTjpW3W33s" title="Learn about basic Flutter animation with implicit animations" {{yt-set}}></iframe>
+
+[Learn about Animation Basics with Implicit Animations]({{yt-watch}}/IVTjpW3W33s)
+
+[使用隐式动画了解动画基础知识]({{yt-watch}}/IVTjpW3W33s)
 
-{% comment %} Animation Basics with Implicit Animations {% endcomment %}
+<iframe width="560" height="315" src="{{yt-embed}}/6KiPEqzJIKQ" title="Learn about building Custom Implicit Animations with TweenAnimationBuilder" {{yt-set}}></iframe>
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/IVTjpW3W33s" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
-{% comment %} Custom Implicit Animations with Tween Animation Builder {% endcomment %}
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/6KiPEqzJIKQ" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+[Learn about building Custom Implicit Animations with TweenAnimationBuilder]({{yt-watch}}/6KiPEqzJIKQ)
+
+[了解如何使用 TweenAnimationBuilder 构建自定义隐式动画]({{yt-watch}}/6KiPEqzJIKQ)
 
 ## The Boring Show
 
@@ -81,9 +90,11 @@ using implicit animations in a news aggregator app.
 观看《The Boring Show》，跟随谷歌工程师用 Flutter 从零开始构建应用程序。
 下面这一集涉及在一个新闻聚合器应用中使用隐式动画。
 
-{% comment %} Implicitly animating the Hacker News app {% endcomment %}
+<iframe width="560" height="315" src="{{yt-embed}}/8ehlWchLVlQ" title="about implicitly animating the Hacker News app" {{yt-set}}></iframe>
+
+[Learn about implicitly animating the Hacker News app]({{yt-watch}}/8ehlWchLVlQ)
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/8ehlWchLVlQ" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+[了解 Hacker News 应用的隐式动画设计]({{yt-watch}}/8ehlWchLVlQ)
 
 ## Widget of the Week videos
 
@@ -100,15 +111,16 @@ implicitly animated widgets:
 在大约六十秒的时间里，你将会看到每个 widget 的实战代码，以及关于它是如何工作的演示。
 下列「每周 Widget」视频涉及了隐含动画 widget 有：
 
-{% comment %} Animated Opacity {% endcomment %}
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=839306372&bvid=BV1W54y1U7ma&cid=225852916&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
-{% comment %} Animated Padding {% endcomment %}
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=839226956&bvid=BV1354y1U7gU&cid=223412850&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
-{% comment %} Animated Positioned {% endcomment %}
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=839111170&bvid=BV1T54y1D7hk&cid=220295763&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
-{% comment %} Animated switcher {% endcomment %}
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=544022725&bvid=BV1dv4y1o7BG&cid=295191533&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+{% assign animated-widgets = 'AnimatedOpacity, AnimatedPadding, AnimatedPositioned, AnimatedSwitcher' | split: ", " %}
+{% assign animated-urls = 'BV1W54y1U7ma, BV1354y1U7gU, BV1T54y1D7hk, BV1dv4y1o7BG' | split: ", " %}
+
+{% for widget in animated-widgets %}
+{% assign video-url = animated-urls[forloop.index0] %}
+
+<iframe width="560" height="315" src="{{bili-embed}}?bvid={{video-url}}&page=1&autoplay=false" title="了解 {{widget}} Flutter Widget" {{bili-set}}></iframe>
+[了解 {{widget}} Flutter Widget]({{bili-video}}/{{video-url}})
 
+{% endfor -%}
 
 [`AnimatedContainer` sample]: {{site.url}}/cookbook/animation/animated-container
 [`AnimatedContainer`]: {{site.api}}/flutter/widgets/AnimatedContainer-class.html
diff --git a/src/ui/animations/index.md b/src/ui/animations/index.md
index c31c965077..5f55cf0aef 100644
--- a/src/ui/animations/index.md
+++ b/src/ui/animations/index.md
@@ -9,6 +9,8 @@ tags: 用户界面,Flutter UI,动画
 keywords: 动画效果实现
 ---
 
+{% include docs/yt_shims.liquid %}
+
 Well-designed animations make a UI feel more intuitive,
 contribute to the slick look and feel of a polished app,
 and improve the user experience.
@@ -41,7 +43,7 @@ To help you decide, check out the video,
 [如何在 Flutter 中选择合适的动画 Widget][How to choose which Flutter Animation Widget is right for you?]
 （同时也发布了一篇 [配套文章][article1]。）
 
-<center><iframe width="560" height="315" src="{{site.youtube-site}}/embed/GXIJJkq_H8g" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></center>
+<iframe width="560" height="315" src="{{yt-embed}}/GXIJJkq_H8g" title="Learn how to choose the Flutter Animation Widget for your use case" {{yt-set}}></iframe>
 
 (To dive deeper into the decision process,
 watch the [Animations in Flutter done right][] video,
@@ -70,7 +72,11 @@ to implement) suits your needs, watch
 请观看 [隐式动画基础][Animation basics with implicit animations]。
 （同时也发布了一篇 [配套文章][article2]。）
 
-<center><iframe width="560" height="315" src="{{site.youtube-site}}/embed/IVTjpW3W33s" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></center>
+<iframe width="560" height="315" src="{{yt-embed}}/IVTjpW3W33s" title="Learn about basic Flutter animation with implicit animations" {{yt-set}}></iframe>
+
+[Learn about Animation Basics with Implicit Animations]({{yt-watch}}/IVTjpW3W33s)
+
+[使用隐式动画了解动画基础知识]({{yt-watch}}/IVTjpW3W33s)
 
 To create a custom implicit animation, watch
 [Creating your own custom implicit animations with TweenAnimationBuilder][].
@@ -80,7 +86,11 @@ To create a custom implicit animation, watch
 [使用 TweenAnimationBuilder 创建独特的隐式动画][Creating your own custom implicit animations with TweenAnimationBuilder]。
 （同时也发布了一篇 [配套文章][article3]。）
 
-<center><iframe width="560" height="315" src="{{site.youtube-site}}/embed/6KiPEqzJIKQ" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></center>
+<iframe width="560" height="315" src="{{yt-embed}}/6KiPEqzJIKQ" title="Learn about building Custom Implicit Animations with TweenAnimationBuilder" {{yt-set}}></iframe>
+
+[Learn about building Custom Implicit Animations with TweenAnimationBuilder]({{yt-watch}}/6KiPEqzJIKQ)
+
+[了解如何使用 TweenAnimationBuilder 构建自定义隐式动画]({{yt-watch}}/6KiPEqzJIKQ)
 
 To create an explicit animation (where you control the animation,
 rather than letting the framework control it), perhaps
@@ -96,7 +106,7 @@ built-in explicit animations][].
 built-in explicit animations]。
 （同时也发布了一篇 [配套文章][article4]。）
 
-<center><iframe width="560" height="315" src="{{site.youtube-site}}/embed/CunyH6unILQ" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></center>
+<iframe width="560" height="315" src="{{yt-embed}}/CunyH6unILQ" title="Learn about the built-in explicit animations in Flutter" {{yt-set}}></iframe>
 
 If you need to build an explicit animation from scratch, watch
 [Creating custom explicit animations with
@@ -107,7 +117,7 @@ AnimatedBuilder and AnimatedWidget][].
 [通过 AnimatedBuilder 和 AnimatedWidget 创建一个自定义动画][Creating custom explicit animations with AnimatedBuilder and AnimatedWidget]。
 （同时也发布了一篇[配套文章][article5]。）
 
-<center><iframe width="560" height="315" src="{{site.youtube-site}}/embed/fneC7t4R_B0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></center>
+<iframe width="560" height="315" src="{{yt-embed}}/fneC7t4R_B0" title="Learn about building Custom Explicit Animations with the AnimatedBuilder and AnimatedWidget Flutter Widgets" {{yt-set}}></iframe>
 
 For a deeper understanding of just how animations work in Flutter, watch
 [Animation deep dive][].
@@ -117,9 +127,9 @@ For a deeper understanding of just how animations work in Flutter, watch
 请观看 [深入理解动画][Animation deep dive]。
 （同时也发布了一篇 [配套文章][article6]。）
 
-<center><iframe width="560" height="315" src="{{site.youtube-site}}/embed/PbcILiN8rbo" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></center>
+<iframe width="560" height="315" src="{{yt-embed}}/PbcILiN8rbo" title="Take a deep dive into Flutter animation" {{yt-set}}></iframe>
 
-## Codelabs, tutorials, and articles 
+## Codelabs, tutorials, and articles
 
 ## Codelabs, 教程和文章
 
@@ -387,13 +397,13 @@ Learn more about Flutter animations at the following links:
 [Animate a widget using a physics simulation]: {{site.url}}/cookbook/animation/physics-simulation
 [`AnimatedList` example]: https://flutter.github.io/samples/animations.html
 [Animation and motion widgets]: {{site.url}}/ui/widgets/animation
-[Animation basics with implicit animations]: {{site.youtube-site}}/watch?v=IVTjpW3W33s&list=PLjxrf2q8roU2v6UqYlt_KPaXlnjbYySua&index=1
-[Animation deep dive]: {{site.youtube-site}}/watch?v=PbcILiN8rbo&list=PLjxrf2q8roU2v6UqYlt_KPaXlnjbYySua&index=5
+[Animation basics with implicit animations]: {{yt-watch}}?v=IVTjpW3W33s&list=PLjxrf2q8roU2v6UqYlt_KPaXlnjbYySua&index=1
+[Animation deep dive]: {{yt-watch}}?v=PbcILiN8rbo&list=PLjxrf2q8roU2v6UqYlt_KPaXlnjbYySua&index=5
 [animation library]: {{site.api}}/flutter/animation/animation-library.html
 [Animation recipes]: {{site.url}}/cookbook/animation
-[Animation samples]: {{site.github}}/flutter/samples/tree/main/animations#animation-samples
+[Animation samples]: {{site.repo.samples}}/tree/main/animations#animation-samples
 [Animation videos]: {{site.social.youtube}}/search?query=animation
-[Animations in Flutter done right]: {{site.youtube-site}}/watch?v=wnARLByOtKA&t=3s
+[Animations in Flutter done right]: {{yt-watch}}?v=wnARLByOtKA&t=3s
 [Animations: overview]: {{site.url}}/ui/animations/overview
 [animations package]: {{site.pub}}/packages/animations
 [Animations tutorial]: {{site.url}}/ui/animations/tutorial
@@ -404,16 +414,16 @@ Learn more about Flutter animations at the following links:
 [article4]: {{site.flutter-medium}}/directional-animations-with-built-in-explicit-animations-3e7c5e6fbbd7
 [article5]: {{site.flutter-medium}}/when-should-i-useanimatedbuilder-or-animatedwidget-57ecae0959e8
 [article6]: {{site.flutter-medium}}/animation-deep-dive-39d3ffea111f
-[Creating your own custom implicit animations with TweenAnimationBuilder]: {{site.youtube-site}}/watch?v=6KiPEqzJIKQ&feature=youtu.be
-[Creating custom explicit animations with AnimatedBuilder and AnimatedWidget]: {{site.youtube-site}}/watch?v=fneC7t4R_B0&list=PLjxrf2q8roU2v6UqYlt_KPaXlnjbYySua&index=4
+[Creating your own custom implicit animations with TweenAnimationBuilder]: {{yt-watch}}?v=6KiPEqzJIKQ&feature=youtu.be
+[Creating custom explicit animations with AnimatedBuilder and AnimatedWidget]: {{yt-watch}}?v=fneC7t4R_B0&list=PLjxrf2q8roU2v6UqYlt_KPaXlnjbYySua&index=4
 [Flutter API documentation]: {{site.api}}
 [Flutter Gallery]: {{site.repo.gallery}}
 [`Grid`]: {{site.repo.gallery}}/blob/main/lib/demos/material/grid_list_demo.dart
 [`Hero`]: {{site.api}}/flutter/widgets/Hero-class.html
 [Hero animations]: {{site.url}}/ui/animations/hero-animations
-[How to choose which Flutter Animation Widget is right for you?]: {{site.youtube-site}}/watch?v=GXIJJkq_H8g
+[How to choose which Flutter Animation Widget is right for you?]: {{yt-watch}}?v=GXIJJkq_H8g
 [Implicit animations codelab]: {{site.url}}/codelabs/implicit-animations
-[Making your first directional animations with built-in explicit animations]: {{site.youtube-site}}/watch?v=CunyH6unILQ&list=PLjxrf2q8roU2v6UqYlt_KPaXlnjbYySua&index=3
+[Making your first directional animations with built-in explicit animations]: {{yt-watch}}?v=CunyH6unILQ&list=PLjxrf2q8roU2v6UqYlt_KPaXlnjbYySua&index=3
 [Material widgets]: {{site.url}}/ui/widgets/material
 [`Navigator`]: {{site.api}}/flutter/widgets/Navigator-class.html
 [`PageRoute`]: {{site.api}}/flutter/widgets/PageRoute-class.html
@@ -422,6 +432,5 @@ Learn more about Flutter animations at the following links:
 [Shrine]: {{site.repo.gallery}}/tree/main/lib/studies/shrine
 [`SpringSimulation`]: {{site.api}}/flutter/physics/SpringSimulation-class.html
 [Staggered Animations]: {{site.url}}/ui/animations/staggered-animations
-[Step 7 (Animate your app)]: {{site.codelabs}}/codelabs/flutter/#6
 [Write your first Flutter app on the web]: {{site.url}}/get-started/codelab-web
 [Zero to One with Flutter, part 1]: {{site.medium}}/dartlang/zero-to-one-with-flutter-43b13fd7b354
diff --git a/src/ui/animations/staggered-animations.md b/src/ui/animations/staggered-animations.md
index c4033ea698..3866b0662d 100644
--- a/src/ui/animations/staggered-animations.md
+++ b/src/ui/animations/staggered-animations.md
@@ -9,30 +9,33 @@ tags: 用户界面,Flutter UI,动画
 keywords: 交织动画
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 {{site.alert.secondary}}
 
   <h4 class="no_toc">What you'll learn</h4>
 
-  * A staggered animation consists of sequential or overlapping
+* A staggered animation consists of sequential or overlapping
     animations.
-    
-    一个交织动画由一组序列动画或重叠动画所组成。
-    
-  * To create a staggered animation, use multiple `Animation` objects.
-    
-    创建一个交织动画，要用到多个动画对象
-  
-  * One `AnimationController` controls all of the `Animation`s.
-  
-    一个 AnimationController 控制所有动画。
-  
-  * Each `Animation` object specifies the animation during an `Interval`.
-  
-    每个动画对象在一个间隔时间内指定一个动画。
-    
-  * For each property being animated, create a `Tween`.
-  
-    为每一个要执行动画的属性创建一个 Tween
+
+  一个交织动画由一组序列动画或重叠动画所组成。
+
+* To create a staggered animation, use multiple `Animation` objects.
+
+  创建一个交织动画，要用到多个动画对象
+
+* One `AnimationController` controls all of the `Animation`s.
+
+  一个 AnimationController 控制所有动画。
+
+* Each `Animation` object specifies the animation during an `Interval`.
+
+  每个动画对象在一个间隔时间内指定一个动画。
+
+* For each property being animated, create a `Tween`.
+
+  为每一个要执行动画的属性创建一个 Tween
 
 {{site.alert.end}}
 
@@ -117,12 +120,7 @@ basic_staggered_animation:
 
 以下视频演示了 basic_staggered_animation 所执行的动画：
 
-<div class="embedded-video-wrapper">
-  <iframe class="embedded-video-wrapper__frame"
-    src="//player.bilibili.com/player.html?bvid=BV1j441157TP&p=2&autoplay=false"
-    frameborder="0" allowfullscreen>
-  </iframe>
-</div>
+<iframe width="560" height="315" src="{{bili-embed}}?bvid=BV1j441157TP&p=2&autoplay=false" title="Watch this example of a staggered animation in Flutter" {{bili-set-short}}></iframe>
 
 In the video, you see the following animation of a single widget,
 which begins as a bordered blue square with slightly rounded corners.
@@ -178,33 +176,33 @@ After running forward, the animation runs in reverse.
   
   <h4 class="no_toc">重点是什么？</h4>
 
-  * All of the animations are driven by the same
+* All of the animations are driven by the same
     [`AnimationController`][].
 
-    所有的动画都是由相同同样的 [`AnimationController`][] 驱动。
+  所有的动画都是由相同同样的 [`AnimationController`][] 驱动。
 
-  * Regardless of how long the animation lasts in real time,
-    the controller's values must be between 0.0 and 1.0, inclusive.
+* Regardless of how long the animation lasts in real time,
+  the controller's values must be between 0.0 and 1.0, inclusive.
 
-    无论动画在真实时间中播放多长时间，控制器的值必须在 0.0 和 1.0 之间，包括 0.0 和 1.0。
+  无论动画在真实时间中播放多长时间，控制器的值必须在 0.0 和 1.0 之间，包括 0.0 和 1.0。
 
-  * Each animation has an [`Interval`][]
-    between 0.0 and 1.0, inclusive.
+* Each animation has an [`Interval`][]
+  between 0.0 and 1.0, inclusive.
 
-    每个动画都有一个 [`Interval`][]，
-    值必须在 0.0 和 1.0 之间，包括 0.0 和 1.0。
+  每个动画都有一个 [`Interval`][]，
+  值必须在 0.0 和 1.0 之间，包括 0.0 和 1.0。
 
-  * For each property that animates in an interval, create a
-    [`Tween`][]. The `Tween` specifies the start and end
-    values for that property.
+* For each property that animates in an interval, create a
+  [`Tween`][]. The `Tween` specifies the start and end
+  values for that property.
 
-    对于每一个间隔内产生动画的属性，创建一个 [`Tween`][]。
-    `Tween` 可以指定该属性的开始值和结束值。 
+  对于每一个间隔内产生动画的属性，创建一个 [`Tween`][]。
+  `Tween` 可以指定该属性的开始值和结束值。 
 
-  * The `Tween` produces an [`Animation`][]
-    object that is managed by the controller.
+* The `Tween` produces an [`Animation`][]
+  object that is managed by the controller.
 
-    `Tween` 产生一个由控制器管理的 [`Animation`][] 对象。
+  `Tween` 产生一个由控制器管理的 [`Animation`][] 对象。
 
 {{site.alert.end}}
 
@@ -476,7 +474,7 @@ The animation runs forward, then backward.
 
 class _StaggerDemoState extends State<StaggerDemo>
     with TickerProviderStateMixin {
-  late AnimationController _controller;
+  late AnimationController_controller;
 
   @override
   void initState() {
@@ -521,7 +519,7 @@ class _StaggerDemoState extends State<StaggerDemo>
                 color:  Colors.black.withOpacity(0.5),
               ),
             ),
-            child: StaggerAnimation(controller: _controller.view),
+            child: StaggerAnimation(controller:_controller.view),
           ),
         ),
       ),
@@ -530,7 +528,6 @@ class _StaggerDemoState extends State<StaggerDemo>
 }
 {% endprettify %}
 
-
 [`Animation`]: {{site.api}}/flutter/animation/Animation-class.html
 [animation controllers]: {{site.api}}/flutter/animation/AnimationController-class.html
 [`AnimationController`]: {{site.api}}/flutter/animation/AnimationController-class.html
@@ -541,9 +538,6 @@ class _StaggerDemoState extends State<StaggerDemo>
 [staggered_pic_selection]: {{site.repo.this}}/tree/{{site.branch}}/examples/_animation/staggered_pic_selection
 [`CurvedAnimation`]: {{site.api}}/flutter/animation/CurvedAnimation-class.html
 [`Curves`]: {{site.api}}/flutter/animation/Curves-class.html
-[flutter_sequence_animation]: {{site.pub}}/packages/flutter_sequence_animation
 [Full code for basic_staggered_animation's main.dart]: {{site.repo.this}}/tree/{{site.branch}}/examples/_animation/basic_staggered_animation/main.dart
 [`Interval`]: {{site.api}}/flutter/animation/Interval-class.html
-[Material motion spec]: {{site.material}}/styles/motion/overview
-[pub.dev]: {{site.pub}}/packages
 [`Tween`]: {{site.api}}/flutter/animation/Tween-class.html
diff --git a/src/ui/design/graphics/fragment-shaders.md b/src/ui/design/graphics/fragment-shaders.md
index ba81887efb..69a8e7bb11 100644
--- a/src/ui/design/graphics/fragment-shaders.md
+++ b/src/ui/design/graphics/fragment-shaders.md
@@ -276,7 +276,7 @@ For a more detailed guide on writing performant shaders,
 check out [Writing efficient shaders][] on GitHub.
 
 [Shader compilation jank]: {{site.url}}/perf/shader
-[Writing efficient shaders]: {{site.github}}/flutter/engine/blob/main/impeller/docs/shader_optimization.md
+[Writing efficient shaders]: {{site.repo.engine}}/blob/main/impeller/docs/shader_optimization.md
 
 ### Other resources
 
@@ -288,5 +288,5 @@ For more information, here are a few resources.
 
 [Shader toy]: https://www.shadertoy.com/
 [The Book of Shaders]: https://thebookofshaders.com/
-[`simple_shader`]: {{site.repo.organization}}/samples/tree/main/simple_shader
+[`simple_shader`]: {{site.repo.samples}}/tree/main/simple_shader
 
diff --git a/src/ui/design/material/index.md b/src/ui/design/material/index.md
index c6df8bd37f..db5e3a2e28 100644
--- a/src/ui/design/material/index.md
+++ b/src/ui/design/material/index.md
@@ -3,6 +3,8 @@ title: Material Design for Flutter
 description: Learn about Material Design for Flutter.
 ---
 
+{% include docs/yt_shims.liquid %}
+
 Material Design is an open-source design system built
 and supported by Google designers and developers.
 
@@ -34,7 +36,6 @@ visiting the [Affected widgets][] page.
 [Affected widgets]: {{site.api}}/flutter/material/ThemeData/useMaterial3.html#affected-widgets
 [deprecation policy]: {{site.url}}/release/compatibility-policy#deprecation-policy
 [demo]: https://flutter.github.io/samples/web/material_3_demo/#/
-[Material 3 Flutter GitHub project]: {{site.github}}/orgs/flutter/projects/19/views/22
 [`NavigationBar`]: {{site.api}}/flutter/material/NavigationBar-class.html
 [`useMaterial3`]: {{site.api}}/flutter/material/ThemeData/useMaterial3.html
 
@@ -42,19 +43,18 @@ Explore the updated components, typography, color system,
 and elevation support with the
 [interactive Material 3 demo][demo]:
 
-<iframe src="https://flutter.github.io/samples/web/material_3_demo/#/"
-        width="100%" height="600px" title="Material 3 Demo App"></iframe>
+<iframe src="https://flutter.github.io/samples/web/material_3_demo/#/" width="100%" height="600px" title="Material 3 Demo App"></iframe>
 
 ## More information
 {:.no_toc}
 
 To learn more about Material Design and Flutter,
-check out:    
+check out:
 
 * [Material.io developer documentation][]
 * [Migrating a Flutter app to Material 3][] blog post by Taha Tesser
 * [Umbrella issue on GitHub][]
 
-[Material.io developer documentation]: https://m3.material.io/develop/flutter
+[Material.io developer documentation]: {{site.material}}/develop/flutter
 [Migrating a Flutter app to Material 3]: https://blog.codemagic.io/migrating-a-flutter-app-to-material-3/
 [Umbrella issue on GitHub]: {{site.github}}//flutter/flutter/issues/91605
diff --git a/src/ui/design/text/typography.md b/src/ui/design/text/typography.md
index eb2934a28d..c75d3cea18 100644
--- a/src/ui/design/text/typography.md
+++ b/src/ui/design/text/typography.md
@@ -3,6 +3,8 @@ title: Flutter's fonts and typography
 description: Learn about Flutter's support for typography.
 ---
 
+{% include docs/yt_shims.liquid %}
+
 [_Typography_][] covers the style and appearance of
 type or fonts: it specifies how heavy the font is,
 the slant of the font, the spacing between
@@ -124,7 +126,7 @@ of Flutter's typography and combines it with the Material
 _and_ Cupertino look and feel (depending on the platform
 the app runs on), animation, and custom fragment shaders:
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/sA5MRFFUuOU" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/sA5MRFFUuOU" title="Learn how to prototype beautiful designs with Flutter" {{yt-set}}></iframe>
 <b>Prototyping beautiful designs with Flutter</b>
 
 To read one engineer's experience
diff --git a/src/ui/interactivity/focus.md b/src/ui/interactivity/focus.md
index 8cdc3b4e48..90741b9d56 100644
--- a/src/ui/interactivity/focus.md
+++ b/src/ui/interactivity/focus.md
@@ -3,6 +3,7 @@ title: Understanding Flutter's keyboard focus system
 description: How to use the focus system in your Flutter app.
 ---
 
+{% include docs/yt_shims.liquid %}
 
 This article explains how to control where keyboard input is directed. If you
 are implementing an application that uses a physical keyboard, such as most
@@ -33,7 +34,7 @@ system:
 - [Receiving/handling key events](#key-events)
 - [Implementing a custom component that needs to be focusable](#focus-widget)
 - [Receiving notifications when the focus changes](#change-notifications)
-- [Changing or defining the "tab order" of focus traversal in an application ](#focustraversalpolicy)
+- [Changing or defining the "tab order" of focus traversal in an application](#focustraversalpolicy)
 - [Defining groups of controls that should be traversed together](#focustraversalgroup-widget)
 - [Preventing some controls in an application from being focusable](#controlling-what-gets-focus)
 
@@ -234,6 +235,7 @@ class _MyCustomWidgetState extends State<MyCustomWidget> {
   }
 }
 ```
+
 ### Key events
 
 If you wish to listen for key events in a subtree, set the `onKey` attribute of
@@ -414,7 +416,7 @@ your custom controls.
 {{site.alert.note}}
   To learn more, watch this short Widget of the Week video on the FocusableActionDetector widget:
 
-  <iframe class="full-width" src="{{site.youtube-site}}/embed/R84AGg0lKs8" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> 
+  <iframe class="full-width" src="{{yt-embed}}/R84AGg0lKs8" title="Learn about the FocusableActionDetector Flutter Widget" {{yt-set}}></iframe>
 {{site.alert.end}}
 
 ## Controlling focus traversal
@@ -542,7 +544,6 @@ information, so you only need it if you're writing your own controls from
 scratch. You can use `addHighlightModeListener` callback to listen for changes
 in the highlight mode.
 
-
 [`Actions`]: {{site.api}}/flutter/widgets/Actions-class.html
 [`Builder`]: {{site.api}}/flutter/widgets/Builder-class.html
 [`DirectionalFocusTraversalPolicyMixin`]: {{site.api}}/flutter/widgets/DirectionalFocusTraversalPolicyMixin-mixin.html
diff --git a/src/ui/interactivity/gestures/index.md b/src/ui/interactivity/gestures/index.md
index 127ff344c6..a54a498155 100644
--- a/src/ui/interactivity/gestures/index.md
+++ b/src/ui/interactivity/gestures/index.md
@@ -8,6 +8,8 @@ tags: 用户界面,Flutter UI
 keywords: 进阶,手势,人机交互
 ---
 
+{% include docs/yt_shims.liquid %}
+
 This document explains how to listen for, and respond to,
 _gestures_ in Flutter.
 Examples of gestures include taps, drags, and scaling.
@@ -268,7 +270,7 @@ use a [`GestureDetector`][].
 
   了解更多，请参考下方「每周 Widget」的里关于 GestureDetector 的短视频：
 
-  <iframe class="full-width" src="{{site.youtube-site}}/embed/WhVXkCFPmK4" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+  <iframe class="full-width" src="{{yt-embed}}/WhVXkCFPmK4" title="Learn about the GestureDetector Flutter Widget" {{yt-set}}></iframe>
 
 {{site.alert.end}}
 
diff --git a/src/ui/interactivity/index.md b/src/ui/interactivity/index.md
index df0399df13..63bf04a178 100644
--- a/src/ui/interactivity/index.md
+++ b/src/ui/interactivity/index.md
@@ -10,6 +10,9 @@ keywords: 交互,Flutter交互,有状态的widget,无状态,StatefulWidget,状
 diff2html: true
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 {% capture examples -%} {{site.repo.this}}/tree/{{site.branch}}/examples {%- endcapture -%}
 
 {{site.alert.secondary}}
@@ -18,17 +21,17 @@ diff2html: true
 
   <h4 class="no_toc">你会学到什么</h4>
 
-  * How to respond to taps.
+* How to respond to taps.
 
-    如何响应点击。
+  如何响应点击。
 
-  * How to create a custom widget.
+* How to create a custom widget.
 
-    如何创建自定义 widget。
+  如何创建自定义 widget。
 
-  * The difference between stateless and stateful widgets.
+* The difference between stateless and stateful widgets.
 
-    无状态和有状态 widget 之间的区别。
+  无状态和有状态 widget 之间的区别。
 
 {{site.alert.end}}
 
@@ -146,22 +149,22 @@ Widget 的状态是一些可以更改的值，如一个滑动条的当前值或
 
   <h4 class="no_toc">重点是什么？</h4>
 
-  * A stateful widget is implemented by two classes:
-    a subclass of `StatefulWidget` and a subclass of `State`.
+* A stateful widget is implemented by two classes:
+  a subclass of `StatefulWidget` and a subclass of `State`.
 
-    实现一个有状态 widget 需要创建两个类：
-    一个 `StatefulWidget` 的子类和一个 `State` 的子类。
+  实现一个有状态 widget 需要创建两个类：
+  一个 `StatefulWidget` 的子类和一个 `State` 的子类。
 
-  * The state class contains the widget's mutable state and
-    the widget's `build()` method.
+* The state class contains the widget's mutable state and
+  the widget's `build()` method.
 
-    State 类包含该 widget 的可变状态并定义该 widget 的 `build()` 方法。
+  State 类包含该 widget 的可变状态并定义该 widget 的 `build()` 方法。
 
-  * When the widget's state changes, the state object calls
-    `setState()`, telling the framework to redraw the widget.
+* When the widget's state changes, the state object calls
+  `setState()`, telling the framework to redraw the widget.
 
-    当 widget 状态改变时，State 对象调用 `setState()`，
-    告诉框架去重绘 widget。
+  当 widget 状态改变时，State 对象调用 `setState()`，
+  告诉框架去重绘 widget。
 
 {{site.alert.end}}
 
@@ -203,10 +206,10 @@ managed for `FavoriteWidget`.
 ### 步骤 0: 开始
 
 If you've already built the app in the
-[building layouts tutorial (step 6)][],
+[building layouts tutorial][],
 skip to the next section.
 
-如果你已经在 [构建布局教程（第 6 步）][building layouts tutorial (step 6)]
+如果你已经在 [构建布局教程][building layouts tutorial]
 中成功创建了应用程序，你可以跳过下面的部分。
 
  1. Make sure you've [set up][] your environment.
@@ -241,6 +244,7 @@ install), you are good to go!
 （Flutter 安装部分介绍过），你就可以开始了！
 
 <a id="step-1"></a>
+
 ### Step 1: Decide which object manages the widget's state
 
 ### Step 1: 决定哪个对象管理 widget 的状态
@@ -267,6 +271,7 @@ and how state might be managed, in [Managing state][].
 关于 widget 和状态的分离以及如何管理状态的信息。
 
 <a id="step-2"></a>
+
 ### Step 2: Subclass StatefulWidget
 
 ### Step 2: 创建 StatefulWidget 的子类
@@ -313,6 +318,7 @@ class FavoriteWidget extends StatefulWidget {
 {{site.alert.end}}
 
 <a id="step-3"></a>
+
 ### Step 3: Subclass State
 
 ### Step 3: 创建 State 的子类
@@ -437,6 +443,7 @@ void _toggleFavorite() {
 ```
 
 <a id="step-4"></a>
+
 ### Step 4: Plug the stateful widget into the widget tree
 
 ### Step 4: 将有 stateful widget 插入 widget 树中
@@ -455,10 +462,7 @@ In the same location, create the stateful widget:
 ```diff
 --- layout/lakes/step6/lib/main.dart
 +++ layout/lakes/interactive/lib/main.dart
-@@ -10,2 +5,2 @@
- class MyApp extends StatelessWidget {
-   const MyApp({super.key});
-@@ -40,11 +35,7 @@
+@@ -83,11 +83,7 @@
                ],
              ),
            ),
@@ -523,21 +527,20 @@ be managed, and lists other available interactive widgets.
 
   <h4 class="no_toc">重点是什么？</h4>
 
-  * There are different approaches for managing state.
+* There are different approaches for managing state.
 
-    有多种方法可以管理状态。
+  有多种方法可以管理状态。
 
-  * You, as the widget designer, choose which approach to use.
+* You, as the widget designer, choose which approach to use.
 
-    您作为 widget 的设计者，需要选择使用何种管理方法。
+  您作为 widget 的设计者，需要选择使用何种管理方法。
 
-  * If in doubt, start by managing state in the parent widget.
+* If in doubt, start by managing state in the parent widget.
 
-    如果不是很清楚时，就在父 widget 中管理状态。
+  如果不是很清楚时，就在父 widget 中管理状态。
 
 {{site.alert.end}}
 
-
 Who manages the stateful widget's state? The widget itself?
 The parent widget?  Both? Another object?
 The answer is... it depends. There are several valid ways
@@ -613,6 +616,7 @@ on the `Container`.
 这些示例使用 [`GestureDetector`][] 捕获 `Container` 上的用户动作。
 
 <a id="self-managed"></a>
+
 ### The widget manages its own state
 
 ### widget 管理自己的状态
@@ -726,6 +730,7 @@ class MyApp extends StatelessWidget {
 <hr>
 
 <a id="parent-managed"></a>
+
 ### The parent widget manages the widget's state
 
 ### 父 widget 管理 widget 的 state
@@ -856,6 +861,7 @@ class TapboxB extends StatelessWidget {
 <hr>
 
 <a id="mix-and-match"></a>
+
 ### A mix-and-match approach
 
 ### 混搭管理
@@ -1159,7 +1165,6 @@ Flutter Gallery [running app][], [repo][]
 <br> 此视频包含有关有状态和无状态 widget 的信息。
 由 Google 工程师 Ian Hickson 讲解。
 
-
 [Android emulator]: {{site.url}}/get-started/install/windows#set-up-the-android-emulator
 [`Checkbox`]: {{site.api}}/flutter/material/Checkbox-class.html
 [`Cupertino`]: {{site.api}}/flutter/cupertino/cupertino-library.html
@@ -1170,11 +1175,10 @@ Flutter Gallery [running app][], [repo][]
 [`FloatingActionButton`]: {{site.api}}/flutter/material/FloatingActionButton-class.html
 [Flutter API documentation]: {{site.api}}
 [Flutter cookbook]: {{site.url}}/cookbook
-[Flutter's Layered Design CN]: https://www.bilibili.com/video/BV1b441157vV
-[Flutter's Layered Design]: {{site.youtube-site}}/watch?v=dkyY9WCGMi0
+[Flutter's Layered Design CN]: {{bili-video}}/BV1b441157vV
+[Flutter's Layered Design]: {{yt-watch}}?v=dkyY9WCGMi0
 [`FormField`]: {{site.api}}/flutter/widgets/FormField-class.html
 [`Form`]: {{site.api}}/flutter/widgets/Form-class.html
-[`foundation` library]: {{site.api}}/flutter/foundation/foundation-library.html
 [`GestureDetector`]: {{site.api}}/flutter/widgets/GestureDetector-class.html
 [Gestures]: {{site.url}}/cookbook/gestures
 [Gestures in Flutter]: {{site.url}}/ui/interactivity/gestures
@@ -1185,7 +1189,6 @@ Flutter Gallery [running app][], [repo][]
 [`InkWell`]: {{site.api}}/flutter/material/InkWell-class.html
 [iOS simulator]: {{site.url}}/get-started/install/macos#set-up-the-ios-simulator
 [building layouts tutorial]: {{site.url}}/ui/layout/tutorial
-[building layouts tutorial (step 6)]: {{site.url}}/ui/layout/tutorial#step-6-final-touch
 [community]: {{site.main-url}}/community
 [Handle taps]: {{site.url}}/cookbook/gestures/handling-taps
 [`lake.jpg`]: {{examples}}/layout/lakes/step6/images/lake.jpg
@@ -1194,7 +1197,6 @@ Flutter Gallery [running app][], [repo][]
 [`main.dart`]: {{examples}}/layout/lakes/step6/lib/main.dart
 [Managing state]: #managing-state
 [Material Design guidelines]: {{site.material}}/styles
-[`meta.dart`]: {{site.pub}}/packages/meta
 [`pubspec.yaml`]: {{examples}}/layout/lakes/step6/pubspec.yaml
 [`Radio`]: {{site.api}}/flutter/material/Radio-class.html
 [`ElevatedButton`]: {{site.api}}/flutter/material/ElevatedButton-class.html
diff --git a/src/ui/layout/constraints.md b/src/ui/layout/constraints.md
index 9362de6546..3b229f0d9d 100644
--- a/src/ui/layout/constraints.md
+++ b/src/ui/layout/constraints.md
@@ -11,6 +11,8 @@ js:
     url: https://dartpad.cn/inject_embed.dart.js
 ---
 
+{% include docs/yt_shims.liquid %}
+
 <?code-excerpt path-base="layout/constraints/"?>
 
 <img src='/assets/images/docs/ui/layout/article-hero-image.png'
@@ -196,7 +198,7 @@ Flutter 的布局引擎的设计初衷是可以一次性完成整个布局的构
   当轮到父级决定其大小和位置的时候，同样的也取决于它自身的父级。
   所以，在不考虑整棵树的情况下，几乎不可能精确定义任何 widget 的大小和位置。
 
-* If a child wants a different size from its parent and 
+* If a child wants a different size from its parent and
   the parent doesn't have enough information to align it,
   then the child's size might be ignored.
   **Be specific when defining alignment.**
@@ -2469,7 +2471,7 @@ the tight constraints it received from its parent
 总的来说，`Center` 起的作用就是从其父级（屏幕）那里获得的严格约束，
 为其子级（`Container`）转换为宽松约束。
 
-If you revisit [Example 3](#example-3), 
+If you revisit [Example 3](#example-3),
 the `Center` allows the red `Container` to be smaller,
 but not bigger than the screen.
 
@@ -2482,6 +2484,7 @@ but not bigger than the screen.
 [`RenderView`]: {{site.api}}/flutter/rendering/RenderView-class.html
 
 <a id="unbounded"></a>
+
 ## Unbounded constraints
 
 {{site.alert.note}}
@@ -2617,8 +2620,6 @@ Here's an example:
 
 <img src='/assets/images/docs/ui/layout/layout-final.png' class="mw-100" alt="A goodbye layout">
 
-
-
 ---
 
 Original article by Marcelo Glasberg
@@ -2650,7 +2651,7 @@ header image at the top of the article.
 
   To better understand how Flutter implements layout
   constraints, check out the following 5-minute video:
-  <iframe width="560" height="315" src="https://www.youtube.com/embed/jckqXR5CrPI" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+  <iframe width="560" height="315" src="{{yt-embed}}/jckqXR5CrPI" title="Learn how Flutter implements layout constraints" {{yt-set}}></iframe>
   <p>Decoding Flutter: Unbounded height and width</p>
 
   想要更好的了解 Flutter 如何实现布局限制，
@@ -2662,4 +2663,3 @@ header image at the top of the article.
   解构 Flutter：不受限制的高度和宽度
 
 {{site.alert.end}}
-
diff --git a/src/ui/layout/index.md b/src/ui/layout/index.md
index 566602e0e7..53977819a4 100644
--- a/src/ui/layout/index.md
+++ b/src/ui/layout/index.md
@@ -10,6 +10,9 @@ keywords: Flutter布局核心介绍,核心机制,Flutter布局
 diff2html: true
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 {% assign api = site.api | append: '/flutter' -%}
 {% capture code -%} {{site.repo.this}}/tree/{{site.branch}}/src/_includes/code {%- endcapture -%}
 {% capture examples -%} {{site.repo.this}}/tree/{{site.branch}}/examples {%- endcapture -%}
@@ -25,17 +28,17 @@ diff2html: true
 
   <h4 class="no_toc">要点</h4>
 
-  * Widgets are classes used to build UIs.
+* Widgets are classes used to build UIs.
 
-    Widgets 是用于构建 UI 的类。
+  Widgets 是用于构建 UI 的类。
 
-  * Widgets are used for both layout and UI elements.
+* Widgets are used for both layout and UI elements.
 
-    Widgets 可以用于布局和展示 UI 元素。
+  Widgets 可以用于布局和展示 UI 元素。
 
-  * Compose simple widgets to build complex widgets.
+* Compose simple widgets to build complex widgets.
 
-    通过组合简单的 widgets 来构建复杂的 widgets。
+  通过组合简单的 widgets 来构建复杂的 widgets。
 
 {{site.alert.end}}
 
@@ -177,10 +180,10 @@ Create an [`Image`][] widget:
 
 <?code-excerpt "layout/lakes/step5/lib/main.dart (Image-asset)" remove="/width|height/"?>
 ```dart
-Image.asset(
-  'images/lake.jpg',
+return Image.asset(
+  image,
   fit: BoxFit.cover,
-),
+);
 ```
 
 Create an [`Icon`][] widget:
@@ -261,11 +264,12 @@ class MyApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    const String appTitle = 'Flutter layout demo';
     return MaterialApp(
-      title: 'Flutter layout demo',
+      title: appTitle,
       home: Scaffold(
         appBar: AppBar(
-          title: const Text('Flutter layout demo'),
+          title: const Text(appTitle),
         ),
         body: const Center(
           child: Text('Hello World'),
@@ -441,11 +445,11 @@ color to white and the text to dark grey to mimic a Material app.
 
   App 源码:
 
-  - [Material app]({{examples}}/layout/base)
+* [Material app]({{examples}}/layout/base)
 
-  - [Non-Material app]({{examples}}/layout/non_material)
+* [Non-Material app]({{examples}}/layout/non_material)
 
-    [非 Material app]({{examples}}/layout/non_material)
+  [非 Material app]({{examples}}/layout/non_material)
 
 </div>
 <div class="col-md-6">
@@ -477,32 +481,32 @@ and a `Column` widget to arrange widgets vertically.
 
   <h4 class="no_toc">要点</h4>
 
-  * `Row` and `Column` are two of the most commonly used layout patterns.
+* `Row` and `Column` are two of the most commonly used layout patterns.
 
-    `Row` 和 `Column` 是两种最常用的布局模式。
+  `Row` 和 `Column` 是两种最常用的布局模式。
 
-  * `Row` and `Column` each take a list of child widgets.
+* `Row` and `Column` each take a list of child widgets.
 
-    `Row` 和 `Column` 每个都有一个子 widgets 列表。
+  `Row` 和 `Column` 每个都有一个子 widgets 列表。
 
-  * A child widget can itself be a `Row`, `Column`,
-    or other complex widget.
+* A child widget can itself be a `Row`, `Column`,
+  or other complex widget.
 
-    一个子 widget 本身可以是 `Row`、`Column` 或其他复杂 widget。
+  一个子 widget 本身可以是 `Row`、`Column` 或其他复杂 widget。
 
-  * You can specify how a `Row` or `Column` aligns its children,
-    both vertically and horizontally.
+* You can specify how a `Row` or `Column` aligns its children,
+  both vertically and horizontally.
 
-    可以指定 `Row` 或 `Column` 如何在垂直和水平方向上对齐其子项。
+  可以指定 `Row` 或 `Column` 如何在垂直和水平方向上对齐其子项。
 
-  * You can stretch or constrain specific child widgets.
+* You can stretch or constrain specific child widgets.
 
-    可以拉伸或限制特定的子 widgets。
+  可以拉伸或限制特定的子 widgets。
 
-  * You can specify how child widgets use the `Row`'s or
-    `Column`'s available space.
+* You can specify how child widgets use the `Row`'s or
+  `Column`'s available space.
 
-    可以指定子 widgets 如何占用 `Row` 或 `Column` 的可用空间。
+  可以指定子 widgets 如何占用 `Row` 或 `Column` 的可用空间。
 
 {{site.alert.end}}
 
@@ -1132,18 +1136,18 @@ color or image.
 
   <h4 class="no_toc">摘要 (Container)</h4>
 
-  * Add padding, margins, borders
+* Add padding, margins, borders
 
-    增加 padding、margins、borders
+  增加 padding、margins、borders
 
-  * Change background color or image
+* Change background color or image
 
-    改变背景色或者图片
+  改变背景色或者图片
 
-  * Contains a single child widget, but that child can be a Row,
-    Column, or even the root of a widget tree
+* Contains a single child widget, but that child can be a Row,
+  Column, or even the root of a widget tree
 
-    只包含一个子 widget，但是这个子 widget 可以是行、列或者是 widget 树的根 widget
+  只包含一个子 widget，但是这个子 widget 可以是行、列或者是 widget 树的根 widget
 
 </div>
 <div class="col-lg-6 text-center">
@@ -1726,6 +1730,7 @@ Widget _buildCard() {
   );
 }
 ```
+
 <hr>
 
 ### ListTile
@@ -1821,20 +1826,27 @@ explain `Stateless` and `Stateful` widgets.
 下面的视频是 [Flutter in Focus][] 系列的一部分，
 解释了 Stateless 和 Stateful 的 widget。
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=55794591&cid=97538062&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
-[Flutter in Focus playlist]({{site.youtube-site}}/watch?v=wgTBLj7rMPM&list=PLjxrf2q8roU2HdJQDjJzOeO6J3FoFLWr2)
+<iframe width="560" height="315" src="{{bili-embed}}?bvid=BV15441157Jm&page=1&autoplay=false" title="Learn how to create stateless widgets" {{bili-set}}></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?bvid=BV1s441157db&page=1&autoplay=false" title="Learn the best times to use stateful widgets" {{bili-set}}></iframe>
+
+[Flutter in Focus playlist]({{yt-playlist}}PLjxrf2q8roU2HdJQDjJzOeO6J3FoFLWr2)
+
+[Flutter in Focus 播放列表]({{yt-playlist}}PLjxrf2q8roU2HdJQDjJzOeO6J3FoFLWr2)
 
 ---
 
 Each episode of the
-[Widget of the Week series]({{site.youtube-site}}/playlist?list=PLjxrf2q8roU23XGwz3Km7sQZFTdB996iG)
+[Widget of the Week series]({{yt-playlist}}PLjxrf2q8roU23XGwz3Km7sQZFTdB996iG)
 focuses on a widget. Several of them includes layout widgets.
 
-[每周 Widget 系列](https://www.bilibili.com/video/av55795672)
+[每周 Widget 系列]({{bili-video}}/BV15441157cc)
 的每一集都会介绍一个 widget。其中也包括一些布局的 widget。
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=55795672&cid=97539385&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
-[Flutter Widget of the Week playlist]({{site.youtube-site}}/watch?v=yI-8QHpGIP4&index=5&list=PLjxrf2q8roU23XGwz3Km7sQZFTdB996iG)
+<iframe width="560" height="315" src="{{bili-embed}}?bvid=BV15441157cc&page=1&autoplay=false" title="Watch the Widget of the Week playlist" {{bili-set}}></iframe>
+
+[Flutter Widget of the Week playlist]({{yt-playlist}}PLjxrf2q8roU23XGwz3Km7sQZFTdB996iG)
+
+[每周 Flutter Widget 播放列表]({{yt-playlist}}PLjxrf2q8roU23XGwz3Km7sQZFTdB996iG)
 
 ## Other resources
 
@@ -1903,7 +1915,7 @@ The following resources might help when writing layout code.
 [`DataTable`]: {{api}}/material/DataTable-class.html
 [Elevation]: {{site.material}}/styles/elevation
 [`Expanded`]: {{api}}/widgets/Expanded-class.html
-[Flutter in Focus]: {{site.youtube-site}}/watch?v=wgTBLj7rMPM&list=PLjxrf2q8roU2HdJQDjJzOeO6J3FoFLWr2
+[Flutter in Focus]: {{yt-watch}}?v=wgTBLj7rMPM&list=PLjxrf2q8roU2HdJQDjJzOeO6J3FoFLWr2
 [`GridView`]: {{api}}/widgets/GridView-class.html
 [`GridTile`]: {{api}}/material/GridTile-class.html
 [HTML/CSS Analogs in Flutter]: {{site.url}}/get-started/flutter-for/web-devs
@@ -1934,5 +1946,4 @@ The following resources might help when writing layout code.
 [Debugging layout issues visually]: {{site.url}}/tools/devtools/inspector#debugging-layout-issues-visually
 [Understanding constraints]: {{site.url}}/ui/layout/constraints
 [Using the Flutter inspector]: {{site.url}}/tools/devtools/inspector
-[Widget of the Week series]: {{site.youtube-site}}/playlist?list=PLjxrf2q8roU23XGwz3Km7sQZFTdB996iG
 [Zero to One with Flutter]: {{site.medium}}/@mravn/zero-to-one-with-flutter-43b13fd7b354
diff --git a/src/ui/layout/responsive/adaptive-responsive.md b/src/ui/layout/responsive/adaptive-responsive.md
index 006147046a..ae31670449 100644
--- a/src/ui/layout/responsive/adaptive-responsive.md
+++ b/src/ui/layout/responsive/adaptive-responsive.md
@@ -6,6 +6,8 @@ description: 创建用于移动端和 Web 的应用非常重要，它们能够
 short-title: 响应式且自适应
 ---
 
+{% include docs/yt_shims.liquid %}
+
 One of Flutter's primary goals is to create a framework
 that allows you to develop apps from a single codebase
 that look and feel great on any platform.
@@ -22,7 +24,7 @@ phone with two screens, to a high def monitor.
 
 Two terms that describe concepts for this
 scenario are _adaptive_ and _responsive_. Ideally,
-you'd want your app to be _both_ but what, 
+you'd want your app to be _both_ but what,
 exactly, does this mean?
 These terms are similar, but they are not the same.
 
@@ -80,7 +82,7 @@ Learn more in the following 5-minute video:
 
 通过以下 5 分钟的视频了解更多：
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/HD5gYnspYzk?si=dsA37QUjHBb2Zh_-" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/HD5gYnspYzk?si=dsA37QUjHBb2Zh_-" title="Learn the difference between adaptive and responsive Flutter apps" {{yt-set}}></iframe>
 
 [Adaptive vs Responsive][]
 
@@ -220,20 +222,20 @@ of The Boring Show:
 
 你也可以观看下面几期关于自适应布局的 The Boring Show：
 
-<iframe style="max-width: 100%" width="560" height="315" src="{{site.youtube-site}}/embed/n6Awpg1MO6M" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe style="max-width: 100%" width="560" height="315" src="{{yt-embed}}/n6Awpg1MO6M" title="Learn about adaptative layouts on the Boring Show" {{yt-set}}></iframe>
 [Adaptive layouts][]
 
-<iframe style="max-width: 100%" width="560" height="315" src="{{site.youtube-site}}/embed/eikOZzfc0l4" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe style="max-width: 100%" width="560" height="315" src="{{yt-embed}}/eikOZzfc0l4" title="Continue to learn about adaptative layouts on the Boring Show" {{yt-set}}></iframe>
 [Adaptive layouts, part 2][]
 
 For an excellent example of an adaptive app,
-check out Flutter Folio, a scrapbooking app created 
+check out Flutter Folio, a scrapbooking app created
 in collaboration with gskinner and the Flutter team:
 
 想要尝试精美的自适应应用，可以下载由 gskinner 和 Flutter
 团队共建的剪贴板应用 Flutter Folio：
 
-<iframe style="max-width: 100%" width="560" height="315" src="{{site.youtube-site}}/embed/yytBENOnF0w" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe style="max-width: 100%" width="560" height="315" src="{{yt-embed}}/yytBENOnF0w" title="Watch a demonstration of the Flutter Folio app" {{yt-set}}></iframe>
 
 The [Folio source code][] is also available on GitHub.
 Learn more on the [gskinner blog][].
@@ -267,8 +269,8 @@ in the following resources:
   以自适应应用为目标编写的
   [Flutter Gallery 应用][Flutter gallery app]（[源代码仓库][repo]）。
 
-[Adaptive layouts]: {{site.youtube-site}}/watch?v=n6Awpg1MO6M&t=694s
-[Adaptive layouts, part 2]: {{site.youtube-site}}/watch?v=eikOZzfc0l4&t=11s
+[Adaptive layouts]: {{yt-watch}}?v=n6Awpg1MO6M&t=694s
+[Adaptive layouts, part 2]: {{yt-watch}}?v=eikOZzfc0l4&t=11s
 [Adaptive vs Responsive]: {{site.youtube-site}}/HD5gYnspYzk?si=5ItDD7UjXvGCRM0K
 [Building adaptive apps]: {{site.url}}/ui/layout/responsive/building-adaptive-apps
 
diff --git a/src/ui/layout/responsive/building-adaptive-apps.md b/src/ui/layout/responsive/building-adaptive-apps.md
index acc0bbd419..d91134fb52 100644
--- a/src/ui/layout/responsive/building-adaptive-apps.md
+++ b/src/ui/layout/responsive/building-adaptive-apps.md
@@ -5,6 +5,9 @@ description: Some considerations and instructions on how to build adaptive apps
 description: 针对多样化的平台构建自适应的应用的重点和指南。
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 <?code-excerpt path-base="ui/layout/adaptive_app_demos"?>
 
 ## Overview
@@ -43,7 +46,7 @@ apps, but they fall into three major categories:
 
   [平台行为习惯与规范](#idioms-and-norms)
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=421723399&bvid=BV1i3411878z&cid=442392038&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe style="max-width: 100%" width="560" height="315" src="{{bili-embed}}?aid=421723399&bvid=BV1i3411878z&cid=442392038&page=1&autoplay=false" title="Learn how to build platform-adaptive Flutter apps" {{bili-set}}></iframe>
 
 This page covers all three categories in detail
 using code snippets to illustrate the concepts.
@@ -69,7 +72,7 @@ Original demo code for adaptive app development techniques from [flutter-adaptiv
 One of the first things you must consider when writing
 your app for multiple platforms is how to adapt
 it to the various sizes and shapes of the screens that
-it will run on. 
+it will run on.
 
 在构建多平台的应用时，首要考虑的是如何针对不同大小的设备进行尺寸适配。
 
@@ -80,7 +83,7 @@ it will run on.
 If you've been building apps or websites,
 you're probably familiar with creating responsive interfaces.
 Luckily for Flutter developers,
-there are a large set of widgets to make this easier. 
+there are a large set of widgets to make this easier.
 
 如果你已经开发过应用或网站，那你可能已经熟悉如何构建自适应的界面。
 好消息是，对于 Flutter 开发者而言，有非常多的 widgets 让构建更为简单。
@@ -263,7 +266,7 @@ return MaterialApp(
 ```
 
 To use `VisualDensity` inside your own views,
-you can look it up: 
+you can look it up:
 
 若想在你的视图中使用 `VisualDensity`，你可以向上查找：
 
@@ -287,7 +290,7 @@ so it can mean different things to different views.
 In this example, 1 density unit equals 6 pixels,
 but this is totally up to your views to decide.
 The fact that it is unit-less makes it quite versatile,
-and it should work in most contexts. 
+and it should work in most contexts.
 
 我们可以看到，`VisualDensity` 是没有单位的，
 所以在不同的视图上可能有不同的含义。
@@ -301,7 +304,7 @@ use a value of around 4 logical pixels for each
 visual density unit. For more information about the
 supported components, see [`VisualDensity`][] API.
 For more information about density principles in general,
-see the [Material Design guide][]. 
+see the [Material Design guide][].
 
 值得注意的是，在 Material 的组件中，1 个单位的视觉密度通常等于 4 个逻辑像素。
 你可以查看 [`VisualDensity`][] API 文档了解更多支持视觉密度的组件。
@@ -318,7 +321,7 @@ If you need more than density changes and can't find a
 widget that does what you need, you can take a more
 procedural approach to adjust parameters, calculate sizes,
 swap widgets, or completely restructure your UI to suit
-a particular form factor. 
+a particular form factor.
 
 如果你需要的不仅是密度的变化，并且没有找到一个满足需求的 widget，
 那么你可以使用代码进行更细化的控制、计算尺寸、切换 widgets
@@ -332,7 +335,7 @@ The simplest form of procedural layouts uses
 screen-based breakpoints. In Flutter,
 this can be done with the `MediaQuery` API.
 There are no hard and fast rules for the sizes to use
-here, but these are general values: 
+here, but these are general values:
 
 最简单的代码控制布局方式是基于屏幕尺寸来定义分界点。
 在 Flutter 中，你可以使用 `MediaQuery` API 实现这些分界点。
@@ -381,11 +384,11 @@ ScreenSize getSize(BuildContext context) {
   return ScreenSize.small;
 }
 ```
- 
+
 Screen-based breakpoints are best used for making
 top-level decisions in your app. Changing things like
 visual density, paddings, or font-sizes are best when
-defined on a global basis. 
+defined on a global basis.
 
 使用基于屏幕大小的分界点的最佳场景，是在应用的顶层进行尺寸决策。
 在需要改变视觉密度、边距或者字体大小时，定义全局的基数是最好的方式。
@@ -407,7 +410,7 @@ return Flex(
 ```
 
 In another widget,
-you might swap some of the children completely: 
+you might swap some of the children completely:
 
 在其他的 widget 中，你也可以切换部分子级 widget：
 
@@ -477,8 +480,8 @@ There are times when you want to make layout decisions
 based on the actual platform you're running on,
 regardless of size. For example, when building a
 custom title bar, you might need to check the operating
-system type and tweak the layout of your title bar, so
-it doesn't get covered by the native window buttons. 
+system type and tweak the layout of your title bar,
+so it doesn't get covered by the native window buttons.
 
 有时你可能需要根据实际运行的平台进行布局处理，而不是基于大小。
 例如，在构建自定义的标题栏时，
@@ -489,8 +492,6 @@ you can use the [`Platform`][] API along with the `kIsWeb` value:
 
 想判断应用当前所处的平台，你可以使用 [`Platform`][] API 和 `kIsWeb` 组合进行判断：
 
-[`Platform`]: {{site.api}}/flutter/package-platform_platform/Platform-class.html
-
 <?code-excerpt "lib/global/device_type.dart (Platforms)"?>
 ```dart
 bool get isMobileDevice => !kIsWeb && (Platform.isIOS || Platform.isAndroid);
@@ -500,9 +501,9 @@ bool get isMobileDeviceOrWeb => kIsWeb || isMobileDevice;
 bool get isDesktopDeviceOrWeb => kIsWeb || isDesktopDevice;
 ```
 
-The `Platform` API can't be accessed from web builds without 
+The `Platform` API can't be accessed from web builds without
 throwing an exception, because the `dart.io` package isn't
-supported on the web target. As a result, this code checks 
+supported on the web target. As a result, the above code checks
 for web first, and because of short-circuiting,
 Dart never calls `Platform` on web targets.
 
@@ -511,6 +512,19 @@ Dart never calls `Platform` on web targets.
 所以在上面的代码中，会首先判断是否在 Web 平台，
 基于这个条件，在 Web 平台上永远不会调用 `Platform` API。
 
+Use `Platform`/`kIsWeb` when the logic absolutely <i>must</i>
+run for a given platform. For example,
+talking to a plugin that only works on iOS,
+or displaying a widget that only conforms to
+Play Store policy and not the App Store's.
+
+当逻辑<i>必须</i>在特定平台上运行时，
+请使用 `Platform`/`kIsWeb`。
+例如，与仅适用于 iOS 的插件交互，
+或显示仅符合 Play Store 政策而非 App Store 政策的 widget。
+
+[`Platform`]: {{site.api}}/flutter/package-platform_platform/Platform-class.html
+
 ### Single source of truth for styling
 
 ### 使用单一来源控制样式
@@ -568,6 +582,14 @@ return Padding(
 );
 ```
 
+Use `Theme.of(context).platform` for theming and
+design choices, like what kind of switches to show
+and general Cupertino/Material adaptions.
+
+使用 `Theme.of(context).platform` 进行主题和设计的选择，
+例如，需要显示什么样的开关，
+以及根据平台的不同显示 Cupertino/Material 的设计。
+
 With all views referencing the same shared-design system rules,
 they tend to look better and more consistent.
 Making a change or adjusting a value for a specific platform
@@ -580,11 +602,11 @@ of helping enforce consistency on the design side.
 使用共享的规则也对设计的一致性有所帮助。
 
 Some common design system categories that can be represented
-this way are: 
+this way are:
 
 常见的设计类型里，如下这些类别可以以这样的方式进行组织：
 
-* Animation timings 
+* Animation timings
 
   动画时间
 
@@ -604,7 +626,7 @@ this way are:
 
   阴影
 
-* Strokes 
+* Strokes
 
   笔画
 
@@ -672,7 +694,7 @@ you can leverage.
 ### 通过构建桌面应用程序进行快速测试
 
 One of the most effective ways to test adaptive
-interfaces is to take advantage of the desktop build targets. 
+interfaces is to take advantage of the desktop build targets.
 
 测试自适应界面的最快方式，是利用桌面端快速进行构建。
 
@@ -693,7 +715,7 @@ development of a responsive UI.
 Building a great touch UI can often be more difficult
 than a traditional desktop UI due, in part,
 to the lack of input accelerators like right-click,
-scroll wheel, or keyboard shortcuts. 
+scroll wheel, or keyboard shortcuts.
 
 在移动端构建优良的触摸交互式 UI 通常比传统的桌面端更为困难，
 因为它缺少类似右键单击、滚轮或键盘快捷键这样的快速输入设备。
@@ -702,7 +724,7 @@ One way to approach this challenge is to focus initially
 on a great touch-oriented UI. You can still do most of
 your testing using the desktop target for its iteration speed.
 But, remember to switch frequently to a mobile device to
-verify that everything feels right. 
+verify that everything feels right.
 
 在一开始就专注于提升触摸体验的 UI，足以应对这样的挑战。
 你依旧可以使用桌面端来提高你的开发效率，但要记得时不时切换回移动端，
@@ -846,7 +868,7 @@ class _BasicActionDetectorState extends State<BasicActionDetector> {
 To get more control over the order that
 widgets are focused on when the user presses tab,
 you can use [`FocusTraversalGroup`][] to define sections
-of the tree that should be treated as a group when tabbing. 
+of the tree that should be treated as a group when tabbing.
 
 想要控制用户按下 Tab 键时的 widget 切换顺序，
 你可以使用 [`FocusTraversalGroup`][] 来指定树中的区域，作为切换时的组别。
@@ -1111,10 +1133,6 @@ return MouseRegion(
 );
 ```
 
-
-[`MouseRegions`]: {{site.api}}/flutter/widgets/MouseRegion-class.html
-
-
 ## Idioms and norms
 
 ## 平台行为习惯与规范
@@ -1146,7 +1164,7 @@ significant benefits:
   Conversely, a UI that feels familiar can build user trust
   and can help improve the perception of quality.
   This often has the added benefit of better app store
-  ratings&mdash;something we can all appreciate! 
+  ratings&mdash;something we can all appreciate!
 
   **建立与用户之间的信任**&mdash;&mdash;在应用的交互表现不如预期时，
   用户会逐渐对应用本身产生怀疑。相反，使用让用户感到熟悉的 UI，
@@ -1180,7 +1198,7 @@ them completely. For example, a lifetime Android user is
 likely unaware of platform conventions on iOS,
 and the same holds true for macOS, Linux, and Windows.
 These differences might be subtle to you,
-but be painfully obvious to an experienced user. 
+but be painfully obvious to an experienced user.
 
 如果你本身不是这个平台的常用用户，这项工作就有一定的难度。
 某些特定的行为和习惯，很容易会被你完全忽略。
@@ -1224,7 +1242,7 @@ on a regular basis.
   **Important**: Advocates don't need to be developers or
   even full-time team members. They can be designers,
   stakeholders, or external testers that are provided
-  with regular builds. 
+  with regular builds.
 
   **重要**：负责人不需要是开发者或者一直在开发的团队成员，
   可以是设计师、利益相关的人士或是外部的版本定期测试人员。
@@ -1245,7 +1263,7 @@ and title bars.
 许多非常流行的多平台应用都有自成一派的 UI，包括自定义按钮、选项菜单和标题栏等。
 
 The more you can consolidate styling and behavior across platforms,
-the easier development and testing will be. 
+the easier development and testing will be.
 The trick is to balance creating a unique experience with a
 strong identity, while respecting the norms of each platform.
 
@@ -1271,7 +1289,7 @@ Desktop and mobile users expect scrollbars,
 but they expect them to behave differently on different platforms.
 Mobile users expect smaller scrollbars that only appear
 while scrolling, whereas desktop users generally expect
-omnipresent, larger scrollbars that they can click or drag. 
+omnipresent, larger scrollbars that they can click or drag.
 
 无论是桌面端还是移动端的用户，都需要滚动条，
 但他们对不同平台所期待的行为是不一样的。
@@ -1311,7 +1329,7 @@ comfortable on a given platform.
 #### 多选
 
 Dealing with multi-select within a list is another area
-with subtle differences across platforms: 
+with subtle differences across platforms:
 
 跨平台的另一个存在差异的地方，是如何处理列表中的多选：
 
@@ -1322,7 +1340,7 @@ static bool get isSpanSelectModifierDown =>
 ```
 
 To perform a platform-aware check for control or command,
-you can write something like this: 
+you can write something like this:
 
 要想监测不同平台的 Control 或 Command 键，你可以编写以下的代码：
 
@@ -1346,7 +1364,7 @@ static bool get isMultiSelectModifierDown {
 A final consideration for keyboard users is the **Select All** action.
 If you have a large list of items of selectable items,
 many of your keyboard users will expect that they can use
-`Control+A` to select all the items. 
+`Control+A` to select all the items.
 
 最后一项针对键盘用户需要考虑的是 **全选** 操作。
 如果你的列表里有很多的可选择内容，
@@ -1361,7 +1379,7 @@ with the expected behavior being similar to having the
 `isMultiSelectModifier` down on the desktop.
 You can select or deselect items using a single tap,
 and will usually have a button to **Select All** or
-**Clear** the current selection. 
+**Clear** the current selection.
 
 在触屏设备上，多选操作通常会被简化，
 与在桌面上按下了 `isMultiSelectModifier`（多选按钮）的行为类似。
@@ -1386,7 +1404,7 @@ users on the web tend to have an adverse reaction.
 对于 Web 平台（以及小部分的桌面平台）而言，大部分能看到的文字都是可以使用鼠标选择的。
 如果不能选择，用户可能会感到不正常。
 
-Luckily, this is easy to support with the [`SelectableText`][] widget: 
+Luckily, this is easy to support with the [`SelectableText`][] widget:
 
 幸运的是，使用 [`SelectableText`][] 就可以很简单地支持选择：
 
@@ -1395,7 +1413,7 @@ Luckily, this is easy to support with the [`SelectableText`][] widget:
 return const SelectableText('Select me!');
 ```
 
-To support rich text, then use `TextSpan`: 
+To support rich text, then use `TextSpan`:
 
 可以用 `TextSpan` 支持富文本：
 
@@ -1420,7 +1438,7 @@ return const SelectableText.rich(
 On modern desktop applications, it's common to customize
 the title bar of your app window, adding a logo for
 stronger branding or contextual controls to help save
-vertical space in your main UI. 
+vertical space in your main UI.
 
 在现代的桌面应用程序中，经常会有定制应用窗口的标题栏、添加 Logo 或者其他控制的需求，
 能节省界面对于垂直空间的占用。
@@ -1500,7 +1518,7 @@ return const Tooltip(
 ```
 
 Flutter also provides built-in context menus when editing
-or selecting text. 
+or selecting text.
 
 Flutter 同时也为编辑和选择文字提供了内置的上下文菜单。
 
@@ -1512,7 +1530,7 @@ or build it yourself using a `Stack` or `Overlay`.
 若你想显示更高级的提示、悬浮面板或自定义的上下文菜单，
 你可以使用已有的 package，或利用 `Stack` 和 `Overlay` 进行构建。
 
-Some available packages include: 
+Some available packages include:
 
 可以使用的 package 包括：
 
@@ -1548,13 +1566,13 @@ On Windows, when presenting a row of buttons,
 the confirmation button is placed at the start of
 the row (left side). On all other platforms,
 it's the opposite. The confirmation button is
-placed at the end of the row (right side). 
+placed at the end of the row (right side).
 
 在 Windows 上展示一行按钮时，确认按钮会在一行的起始位置（左侧）。
 而在其他平台上，则是完全相反的，确认按钮显示在末尾位置（右侧）。
 
 This can be easily handled in Flutter using the
-`TextDirection` property on `Row`: 
+`TextDirection` property on `Row`:
 
 在 Flutter 里你可以很轻松地修改 `Row` 的 `TextDirection` 来达到这个效果：
 
@@ -1592,7 +1610,7 @@ return Row(
 
 Another common pattern on desktop apps is the menu bar.
 On Windows and Linux, this menu lives as part of the Chrome title bar,
-whereas on macOS, it's located along the top of the primary screen. 
+whereas on macOS, it's located along the top of the primary screen.
 
 桌面平台有另一种常见的内容：菜单栏。
 在 Windows 和 Linux 上，Chrome 的菜单栏整合在标题栏内，
@@ -1660,7 +1678,7 @@ this way: you just select an item and start dragging.
 In Flutter, you can implement drag and drop in many
 ways. Discussing specific implementations is outside
 the scope of this article, but some high level options
-are: 
+are:
 
 在 Flutter 中，你可以用多种方式实现拖放。
 但是我们不在本篇文章中讨论这个话题，以下是一些更高级的选项：
@@ -1690,7 +1708,7 @@ are:
 Of course, this page doesn't constitute an exhaustive list
 of the things you might consider. The more operating systems,
 form factors, and input devices you support,
-the more difficult it becomes to spec out every permutation in design. 
+the more difficult it becomes to spec out every permutation in design.
 
 当然，这篇文章并不代表你仅需要考虑这些内容。
 针对平台设计的规范，会随着你适配的平台、设备外形和输入设备数量的增加而变得更为复杂。
@@ -1703,7 +1721,7 @@ and results in improved productivity with better outcomes.
 作为开发人员，你应当花一些时间学习基本的可用性原则，帮助你做出更好的决策，
 减少由设计细节带来的返工时间消耗，从而提升自己的生产力，产出更好的结果。
 
-Here are some resources to get you started: 
+Here are some resources to get you started:
 
 你可以从下列的资源开始学习：
 
diff --git a/src/ui/layout/scrolling/index.md b/src/ui/layout/scrolling/index.md
index f9391af0be..12483741e5 100644
--- a/src/ui/layout/scrolling/index.md
+++ b/src/ui/layout/scrolling/index.md
@@ -3,6 +3,8 @@ title: Scrolling
 description: Overview of Flutter's scrolling support
 ---
 
+{% include docs/yt_shims.liquid %}
+
 Flutter has many built-in widgets that automatically
 scroll and also offers a variety of widgets
 that you can customize to create specific scrolling
@@ -11,16 +13,16 @@ behavior.
 ## Basic scrolling
 
 Many Flutter widgets support scrolling out of the box
-and do most of the work for you. For example, 
+and do most of the work for you. For example,
 [`SingleChildScrollView`][] automatically scrolls its
 child when necessary. Other useful widgets include
 [`ListView`][] and [`GridView`][].
 You can check out more of these widgets on the
 [scrolling page][] of the Widget catalog.
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/DbkIQSvwnZc" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/DbkIQSvwnZc" title="Learn how to use the Scrollbar Flutter Widget" {{yt-set}}></iframe>
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/KJpkjHGiI5A" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/KJpkjHGiI5A" title="Learn how to use the ListView Flutter Widget" {{yt-set}}></iframe>
 
 ### Infinite scrolling
 
@@ -41,22 +43,22 @@ The following widgets provide more specific scrolling
 behavior.
 
 A video on using [`DraggableScrollableSheet`][]
-<iframe width="560" height="315" src="https://www.youtube.com/embed/Hgw819mL_78" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/Hgw819mL_78" title="Learn how to use the DraggableScrollableSheet Flutter Widget" {{yt-set}}></iframe>
 
 Turn the scrollable area into a wheel! [`ListWheelScrollView`][]
-<iframe width="560" height="315" src="https://www.youtube.com/embed/dUhmWAz4C7Y" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/dUhmWAz4C7Y" title="Learn how to use the ListWheelScrollView Flutter Widget" {{yt-set}}></iframe>
 
 [`DraggableScrollableSheet`]: {{site.api}}/flutter/widgets/DraggableScrollableSheet-class.html
 [`GridView`]: {{site.api}}/flutter/widgets/GridView-class.html
 [`ListView`]: {{site.api}}/flutter/widgets/ListView-class.html
 [`ListWheelScrollView`]: {{site.api}}/flutter/widgets/ListWheelScrollView-class.html
 [scrolling page]: {{site.url}}/ui/widgets/scrolling
-[`SingleChildScrollView`]: {{site.api}}/flutter/widgets/SingleChildScrollView-class.html 
+[`SingleChildScrollView`]: {{site.api}}/flutter/widgets/SingleChildScrollView-class.html
 
 {% comment %}
   Not yet, but coming. Two dimensional scrolling:
   TableView and TreeView.
-  Video: https://www.youtube.com/watch?v=UDZ0LPQq-n8
+  Video: {{yt-watch}}?v=UDZ0LPQq-n8
 {% endcomment %}
 
 ## Fancy scrolling
@@ -91,4 +93,4 @@ or do you use a sliver?
 
 Check out the "ShrinkWrap vs Slivers" video:
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/LUqDNnv_dh0" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{yt-embed}}/LUqDNnv_dh0" title="Learn how to nest scrolling widgets in Flutter" {{yt-set}}></iframe>
diff --git a/src/ui/layout/scrolling/slivers.md b/src/ui/layout/scrolling/slivers.md
index 2f05c5f8c1..7444007a70 100644
--- a/src/ui/layout/scrolling/slivers.md
+++ b/src/ui/layout/scrolling/slivers.md
@@ -8,6 +8,9 @@ tags: 用户界面,Flutter UI
 keywords: 滑动效果, slivers
 ---
 
+{% include docs/yt_shims.liquid %}
+{% include docs/bili_shims.liquid %}
+
 A sliver is a portion of a scrollable area that you
 can define to behave in a special way.
 You can use slivers to achieve custom scrolling effects,
@@ -18,13 +21,13 @@ Sliver 是可滚动区域的一部分，你可以定义它以特殊的方式工
 比如弹性滚动。
 
 For a free, instructor-led video workshop that uses DartPad,
-check out the following video about using slivers:
+check out the following video about using slivers.
 
 以下是一个关于使用 sliver 的免费指导视频，
 由讲师使用 DartPad Workshop 进行指导，
 请观看视频：
 
-<iframe width="560" height="315" src="https://player.bilibili.com/player.html?aid=291195426&bvid=BV11f4y187gV&cid=354814353&page=1&autoplay=false" title="Bilibili video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=291195426&bvid=BV11f4y187gV&cid=354814353&page=1&autoplay=false" title="Learn how to build beautiful scrolling examples in Flutter" {{bili-set}}></iframe>
 
 ## Resources
 
@@ -56,7 +59,7 @@ in Flutter, see the following resources:
 <p markdown="1">一段一分钟的「每周 Flutter Widgets」视频，
 概述了 `SliverAppBar` widget。</p>
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=586378022&bvid=BV19z4y1S7K7&cid=288732722&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=586378022&bvid=BV19z4y1S7K7&cid=288732722&page=1&autoplay=false" title="Learn about the SliverAppBar Widget" {{bili-set}}></iframe>
 </dd>
 
 <dt markdown="1">
@@ -70,7 +73,7 @@ in Flutter, see the following resources:
 <p markdown="1">一段一分钟的「每周 Flutter Widgets」视频，
 概述了 `SliverList` 和 `SliverGrid` widget。</p>
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=38437526&bvid=BV1Pt411v78y&cid=67565151&page=12&autoplay=false" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=38437526&bvid=BV1Pt411v78y&cid=67565151&page=12&autoplay=false" title="Learn about the SliverList and SliverBar Widget" {{bili-set}}></iframe>
 </dd>
 
 <dt markdown="1">
@@ -84,7 +87,7 @@ in Flutter, see the following resources:
 <p markdown="1">一集 50 分钟的 [The Boring Show][] 视频，
 Flutter 的技术负责人 Ian Hickson 和 Filip Hracek 讨论了 sliver 的能力。</p>
 
-<iframe width="560" height="315" src="//player.bilibili.com/player.html?aid=77325252&bvid=BV1EJ41197NB&cid=132272803&page=1&autoplay=false" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="{{bili-embed}}?aid=77325252&bvid=BV1EJ41197NB&cid=132272803&page=1&autoplay=false" title="Watch the Boring Show to learn about slivers" {{bili-set}}></iframe>
 </dd>
 </dl>
 
@@ -102,13 +105,12 @@ check out these related API docs:
 * [`SliverGrid`][]
 * [`SliverList`][]
 
-
 [`CustomScrollView`]: {{site.api}}/flutter/widgets/CustomScrollView-class.html
-[sliver-app-bar-video]: {{site.youtube-site}}/watch?v=R9C5KMJKluE
+[sliver-app-bar-video]: {{yt-watch}}?v=R9C5KMJKluE
 [`SliverAppBar`]: {{site.api}}/flutter/material/SliverAppBar-class.html
 [`SliverGrid`]: {{site.api}}/flutter/widgets/SliverGrid-class.html
-[SliverList and SliverGrid]: {{site.youtube-site}}/watch?v=ORiTTaVY6mM
+[SliverList and SliverGrid]: {{yt-watch}}?v=ORiTTaVY6mM
 [`SliverList`]: {{site.api}}/flutter/widgets/SliverList-class.html
 [Slivers, DeMystified]: {{site.flutter-medium}}/slivers-demystified-6ff68ab0296f
-[Slivers explained - Making dynamic layouts]: https://www.bilibili.com/video/BV1EJ41197NB/
-[The Boring Show]: {{site.youtube-site}}/playlist?list=PLOU2XLYxmsIK0r_D-zWcmJ1plIcDNnRkK
+[Slivers explained - Making dynamic layouts]: {{bili-video}}/BV1EJ41197NB/
+[The Boring Show]: {{yt-playlist}}PLOU2XLYxmsIK0r_D-zWcmJ1plIcDNnRkK
diff --git a/src/ui/layout/tutorial.md b/src/ui/layout/tutorial.md
index 1e315f84c6..aa2de69779 100644
--- a/src/ui/layout/tutorial.md
+++ b/src/ui/layout/tutorial.md
@@ -1,348 +1,396 @@
 ---
-title: Building layouts
-title: 布局构建教程
-short-title: Tutorial
+title: Build a Flutter layout
+title: 构建 Flutter 布局
+short-title: Layout tutorial
 short-title: 布局教程
-description: Learn how to build a layout.
-description: 学习如何在 Flutter 里构建布局。
+description: Learn how to build a layout in Flutter.
+description: 学习如何在 Flutter 中构建布局。
 tags: 用户界面,Flutter UI,布局
 keywords: 布局教程,自动换行
 diff2html: true
 ---
 
-{% assign api = '{{site.api}}/flutter' -%}
+{% assign api = site.api | append: '/flutter' -%}
 {% capture examples -%} {{site.repo.this}}/tree/{{site.branch}}/examples {%- endcapture -%}
-{% assign rawExFile = 'https://raw.githubusercontent.com/flutter/website/main/examples' -%}
+{% assign rawExFile = '<https://raw.githubusercontent.com/flutter/website/main/examples>' -%}
 {% capture demo -%} {{site.repo.flutter}}/tree/{{site.branch}}/examples/flutter_gallery/lib/demo {%- endcapture -%}
 
 <style>dl, dd { margin-bottom: 0; }</style>
 
 {{site.alert.secondary}}
 
-  <h4 class="no_toc">What you'll learn</h4>
-
-  <h4 class="no_toc">你将会学习到</h4>
-
-  * How Flutter's layout mechanism works.
-
-    Flutter 的布局机制是如何工作的。
-
-  * How to lay out widgets vertically and horizontally.
-
-    如何竖直或者水平地对 widgets 进行布局。
-
-  * How to build a Flutter layout.
-
-    如何构建一个 Flutter 布局。
+## What you'll learn
 
+* How to lay out widgets next to each other.
+* How to add space between widgets.
+* How adding and nesting widgets results in a Flutter layout.
 {{site.alert.end}}
 
-This is a guide to building layouts in Flutter.
-You'll build the layout for the following app:
+This tutorial explains how to design and build layouts in Flutter.
 
-这是一份如何在 Flutter 中构建布局的指南。你将为如下 app 创建布局：
+If you use the example code provided, you can build the following app.
 
-{% include docs/app-figure.md img-class="site-mobile-screenshot border"
-    image="ui/layout/lakes.jpg" caption="The finished app" %}
+{% include docs/app-figure.liquid
+   img-class="site-mobile-screenshot border"
+   image="ui/layout/layout-demo-app.png"
+   caption="The finished app."
+   width="50%" %}
 
-This guide then takes a step back to explain Flutter's
-approach to layout, and shows how to place a single widget
-on the screen. After a discussion of how to lay widgets
-out horizontally and vertically, some of the most common
-layout widgets are covered.
+<figcaption class="figure-caption" markdown="1">
+Photo by [Dino Reichmuth][ch-photo] on [Unsplash][].
+Text by [Switzerland Tourism][].
+</figcaption>
 
-这份指南之前溯源一步解释了 Flutter 中的布局方式，以及展示了如何在屏幕中放置单个 widget。
-经过了如何水平以及竖直放置 widgets 的讨论之后，一些最常使用的 widgets 都涉及到了。
+To get a better overview of the layout mechanism, start with
+[Flutter's approach to layout][].
 
-If you want a "big picture" understanding of the layout mechanism,
-start with [Flutter's approach to layout][].
+## Diagram the layout
 
-如果你想对布局机制有个总体的理解，可以先从
-[Flutter 中的布局][Flutter's approach to layout] 开始。
+In this section, consider what type of user experience you want for
+your app users.
 
-## Step 0: Create the app base code
+Consider how to position the components of your user interface.
+A layout consists of the total end result of these positionings.
+Consider planning your layout to speed up your coding.
+Using visual cues to know where something goes on screen can be a great help.
 
-## 第一步: 创建 app 基础代码
+Use whichever method you prefer, like an interface design tool or a pencil
+and a sheet of paper. Figure out where you want to place elements on your
+screen before writing code. It's the programming version of the adage:
+"Measure twice, cut once."
 
-Make sure to [set up][] your environment,
-then do the following:
+<ol>
+<li markdown="1">
 
-确保你已经 [安装和配置][set up] 好了你的环境，
-然后做如下步骤：
+Ask these questions to break the layout down to its basic elements.
 
-<?code-excerpt path-base="layout/base"?>
+* Can you identify the rows and columns?
+* Does the layout include a grid?
+* Are there overlapping elements?
+* Does the UI need tabs?
+* What do you need to align, pad, or border?
 
- 1. [Create a new Flutter app][new-flutter-app].
+</li>
 
-    [创建一个新的 Flutter 应用][new-flutter-app]
+<li markdown="1">
 
- 2. Replace the contents in `lib/main.dart` with the following code:
+Identify the larger elements. In this example, you arrange the image, title,
+buttons, and description into a column.
 
-    用下面的代码来替换你的 `lib/main.dart` 文件:
+{% include docs/app-figure.liquid
+    img-class="site-mobile-screenshot border"
+    image="ui/layout/layout-sketch-intro.svg"
+    caption="Major elements in the layout: image, row, row, and text block"
+    width="50%" %}
 
-    <?code-excerpt "lib/main.dart (all)" title?>
-    ```dart
-    import 'package:flutter/material.dart';
+</li>
+<li markdown="1">
 
-    void main() => runApp(const MyApp());
+Diagram each row.
 
-    class MyApp extends StatelessWidget {
-      const MyApp({super.key});
+<ol type="a">
 
-      @override
-      Widget build(BuildContext context) {
-        return MaterialApp(
-          title: 'Flutter layout demo',
-          home: Scaffold(
-            appBar: AppBar(
-              title: const Text('Flutter layout demo'),
-            ),
-            body: const Center(
-              child: Text('Hello World'),
-            ),
-          ),
-        );
-      }
-    }
-    ```
+<li markdown="1">
 
-## Step 1: Diagram the layout
+Row 1, the **Title** section, has three children:
+a column of text, a star icon, and a number.
+Its first child, the column, contains two lines of text.
+That first column might need more space.
 
-## 第一步: 对布局进行图形分解
+{% include docs/app-figure.liquid
+   image="ui/layout/layout-sketch-title-block.svg"
+   caption="Title section with text blocks and an icon"
+   -%}
 
-The first step is to break the layout down to its basic elements:
+</li>
 
-第一步需要将布局分解成它的各个基础元素：
+<li markdown="1">
 
-* Identify the rows and columns.
+Row 2, the **Button** section, has three children: each child contains
+a column which then contains an icon and text.
 
-  识别出它的行和列。
+{% include docs/app-figure.liquid
+    image="ui/layout/layout-sketch-button-block.svg"
+    caption="The Button section with three labeled buttons"
+    width="50%" %}
 
-* Does the layout include a grid?
+  </li>
 
-  这个布局是否包含网格布局？
+</ol>
 
-* Are there overlapping elements?
+</li>
+</ol>
 
-  是否有重叠的元素？
+After diagramming the layout, consider how you would code it.
 
-* Does the UI need tabs?
-
-  界面是否需要选项卡？
+Would you write all the code in one class?
+Or, would you create one class for each part of the layout?
 
-* Notice areas that require alignment, padding, or borders.
+To follow Flutter best practices, create one class, or Widget,
+to contain each part of your layout.
+When Flutter needs to re-render part of a UI,
+it updates the smallest part that changes.
+This is why Flutter makes "everything a widget".
+If the only the text changes in a `Text` widget, Flutter redraws only that text.
+Flutter changes the least amount of the UI possible in response to user input.
 
-  留意需要对齐、内间距、或者边界的区域。
+For this tutorial, write each element you have identified as its own widget.
 
-First, identify the larger elements. In this example,
-four elements are arranged into a column: an image, two rows, and a block of text.  
+## Create the app base code
 
-首先，识别出稍大的元素。在这个例子中，四个元素排成一列：一个图像，两个行区域，和一个文本区域。
+In this section, shell out the basic Flutter app code to start your app.
 
-{% include docs/app-figure.md img-class="site-mobile-screenshot border"
-    image="ui/layout/lakes-column-elts.png" caption="Column elements (circled in red)" %}
+<?code-excerpt path-base="layout/base"?>
 
-Next, diagram each row. The first row, called the Title
-section, has 3 children: a column of text, a star icon,
-and a number. Its first child, the column, contains 2 lines of text.
-That first column takes a lot of space, so it must be wrapped in an
-Expanded widget.
+1. [Set up your Flutter environment][].
 
-接着，对每一行进行图解。第一行，也就是标题区域，
-有三个子元素：一个文本列，一个星形图标，和一个数字。
-它的第一个子元素，文本列，包含两行文本。
-第一列占据大量空间，因此它应当被封装在一个 Expanded widget 当中。
+1. [Create a new Flutter app][new-flutter-app].
 
-{% include docs/app-figure.md image="ui/layout/title-section-parts.png" alt="Title section" %}
+1. Replace the contents of `lib/main.dart` with the following code.
+   This app uses a parameter for the app title and the title shown
+   on the app's `appBar`. This decision simplifies the code.
 
-The second row, called the Button section, also has
-3 children: each child is a column that contains an icon and text.
+   <?code-excerpt "lib/main.dart (all)" title?>
+   ```dart
+   import 'package:flutter/material.dart';
 
-第二行，也就是按钮区域，同样有三个子元素：
-每个子元素是一个包含图标和文本的列。
+   void main() => runApp(const MyApp());
 
-{% include docs/app-figure.md image="ui/layout/button-section-diagram.png" alt="Button section" %}
+   class MyApp extends StatelessWidget {
+     const MyApp({super.key});
 
-Once the layout has been diagrammed, it's easiest to
-take a bottom-up approach to implementing it.
-To minimize the visual confusion of deeply nested layout code,
-place some of the implementation in variables and functions.
+     @override
+     Widget build(BuildContext context) {
+       const String appTitle = 'Flutter layout demo';
+       return MaterialApp(
+         title: appTitle,
+         home: Scaffold(
+           appBar: AppBar(
+             title: const Text(appTitle),
+           ),
+           body: const Center(
+             child: Text('Hello World'),
+           ),
+         ),
+       );
+     }
+   }
+   ```
 
-一旦图解好布局，采取自下而上的方法来实现它就变得尤为轻松了。
-为了最大程度减少，深层嵌套的布局代码带来的视觉混乱，
-需要用一些变量和函数来替代某些实现。
+## Add the Title section
 
-## Step 2: Implement the title row
+In this section, create a `TitleSection` widget that resembles
+the following layout.
 
-## 第二步: 实现标题行
+<?code-excerpt path-base="layout/lakes"?>
 
-<?code-excerpt path-base="layout/lakes/step2"?>
+{% include docs/app-figure.liquid
+   image="ui/layout/layout-sketch-title-block-unlabeled.svg"
+   caption="The Title section as sketch and prototype UI" %}
 
-First, you'll build the left column in the title section.
-Add the following code at the top of the `build()`
-method of the `MyApp` class:
+### Add the `TitleSection` Widget
 
-首先，你可以构建标题部分左侧列。添加如下代码到 `MyApp` 类的 `build()` 方法内顶部。
+Add the following code after the `MyApp` class.
 
-<?code-excerpt "lib/main.dart (titleSection)" title?>
+<?code-excerpt "step2/lib/main.dart (titleSection)" title?>
 ```dart
-Widget titleSection = Container(
-  padding: const EdgeInsets.all(32),
-  child: Row(
-    children: [
-      Expanded(
-        /*1*/
-        child: Column(
-          crossAxisAlignment: CrossAxisAlignment.start,
-          children: [
-            /*2*/
-            Container(
-              padding: const EdgeInsets.only(bottom: 8),
-              child: const Text(
-                'Oeschinen Lake Campground',
-                style: TextStyle(
-                  fontWeight: FontWeight.bold,
+class TitleSection extends StatelessWidget {
+  const TitleSection({
+    super.key,
+    required this.name,
+    required this.location,
+  });
+
+  final String name;
+  final String location;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.all(32),
+      child: Row(
+        children: [
+          Expanded(
+            /*1*/
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                /*2*/
+                Padding(
+                  padding: const EdgeInsets.only(bottom: 8),
+                  child: Text(
+                    name,
+                    style: const TextStyle(
+                      fontWeight: FontWeight.bold,
+                    ),
+                  ),
                 ),
-              ),
-            ),
-            Text(
-              'Kandersteg, Switzerland',
-              style: TextStyle(
-                color: Colors.grey[500],
-              ),
+                Text(
+                  location,
+                  style: TextStyle(
+                    color: Colors.grey[500],
+                  ),
+                ),
+              ],
             ),
-          ],
-        ),
-      ),
-      /*3*/
-      Icon(
-        Icons.star,
-        color: Colors.red[500],
+          ),
+          /*3*/
+          Icon(
+            Icons.star,
+            color: Colors.red[500],
+          ),
+          const Text('41'),
+        ],
       ),
-      const Text('41'),
-    ],
-  ),
-);
+    );
+  }
+}
 ```
 
 {:.numbered-code-notes}
- 1. Putting a `Column` inside an `Expanded` widget stretches
-    the column to use all remaining free space in the row.
-    Setting the `crossAxisAlignment` property to
-    `CrossAxisAlignment.start` positions the column at
-    the start of the row.
-
-    将 Column 元素放到 Expanded widget 中可以拉伸该列，以利用该行中所有剩余的闲置空间。
-    设置 `crossAxisAlignment` 属性值为 `CrossAxisAlignment.start`，
-    这会将该列放置在行的起始位置。
-
- 2. Putting the first row of text inside a `Container`
-    enables you to add padding. The second child in the
-    `Column`, also text, displays as grey.
-
-    将第一行文本放入 Container 容器中使得你可以增加内间距。
-    列中的第二个子元素，同样为文本，显示为灰色。
-
- 3. The last two items in the title row are a star icon,
-    painted red, and the text "41". The entire row is in
-    a `Container` and padded along each edge by 32 pixels.
-    Add the title section to the app body like this:
 
-    标题行中的最后两项是一个红色星形图标，和文字"41"。
-    整行都在一个 Container 容器布局中，
-    而且每条边都有 32 像素的内间距。
+1. To use all remaining free space in the row, use the `Expanded` widget to
+   stretch the `Column` widget.
+   To place the column at the start of the row,
+   set the `crossAxisAlignment` property to `CrossAxisAlignment.start`.
+2. To add space between the rows of text, put those rows in a `Padding` widget.
+3. The title row ends with a red star icon and the text `41`.
+    The entire row falls inside a `Padding` widget and pads each edge
+    by 32 pixels.
 
-Add the title section to the app body like this:
+### Change the app body to a scrolling view
 
-如下添加标题部分到 app body 中：
+In the `body` property, replace the `Center` widget with a
+`SingleChildScrollView` widget.
+Within the [`SingleChildScrollView`][] widget, replace the `Text` widget with a
+`Column` widget.
 
-<?code-excerpt path-base="layout/lakes"?>
-<?code-excerpt "{../base,step2}/lib/main.dart" from="return MaterialApp"?>
+<?code-excerpt "{../base,step2}/lib/main.dart" from="body:" to="children: ["?>
 ```diff
 --- ../base/lib/main.dart
 +++ step2/lib/main.dart
-@@ -14,11 +48,13 @@
-     return MaterialApp(
-       title: 'Flutter layout demo',
-       home: Scaffold(
-         appBar: AppBar(
-           title: const Text('Flutter layout demo'),
-         ),
+@@ -21,2 +17,3 @@
 -        body: const Center(
 -          child: Text('Hello World'),
-+        body: Column(
-+          children: [
-+            titleSection,
-+          ],
-         ),
-       ),
-     );
++        body: const SingleChildScrollView(
++          child: Column(
++            children: [
 ```
 
-{{site.alert.tip}}
+These code updates change the app in the following ways.
+
+* A `SingleChildScrollView` widget can scroll.
+  This allows elements that don't fit on the current screen to display.
+* A `Column` widget displays any elements within its `children` property
+  in the order listed.
+  The first element listed in the `children` list displays at
+  the top of the list. Elements in the `children` list display
+  in array order on the screen from top to bottom.
 
-  * When pasting code into your app, indentation can
-    become skewed. You can fix this in your Flutter editor
-    using the [automatic reformatting support][].
+[`SingleChildScrollView`]: {{api}}/widgets/SingleChildScrollView-class.html
 
-    在粘贴代码到你的 app 中时，行首缩进可能会发生偏移。
-    你可以通过使用 [代码自动格式化][automatic reformatting support] 来修复这个问题。
+### Update the app to display the title section
 
-  - For a faster development experience,
-    try Flutter's [hot reload][] feature.
+Add the `TitleSection` widget as the first element in the `children` list.
+This places it at the top of the screen.
+Pass the provided name and location to the `TitleSection` constructor.
 
-    为了获得更便捷的开发体验，请尝试 Flutter 的 [热重载][hot reload] 功能。
+<?code-excerpt "{../base,step2}/lib/main.dart" from="children:" to="],"?>
+```diff
+--- ../base/lib/main.dart
++++ step2/lib/main.dart
+@@ -23 +19,6 @@
++            children: [
++              TitleSection(
++                name: 'Oeschinen Lake Campground',
++                location: 'Kandersteg, Switzerland',
++              ),
++            ],
+```
 
-  - If you have problems, compare your code to [`lib/main.dart`][].
+{{site.alert.tip}}
 
-    如果你有任何问题，可以将你的代码与 [`lib/main.dart`][] 比对.
+* When pasting code into your app, indentation can become skewed.
+      To fix this in your Flutter editor, use [automatic reformatting support][].
+* To accelerate your development, try Flutter's [hot reload][] feature.
+* If you have problems, compare your code to [`lib/main.dart`][].
 
 {{site.alert.end}}
 
-## Step 3: Implement the button row
+## Add the Button section
 
-## 第三步: 实现按钮行
+In this section, add the buttons that will add functionality to your app.
 
 <?code-excerpt path-base="layout/lakes/step3"?>
 
-The button section contains 3 columns that use the same
-layout&mdash;an icon over a row of text.
-The columns in this row are evenly spaced,
-and the text and icons are painted with the primary color.
+The **Button** section contains three columns that use the same layout:
+an icon over a row of text.
 
-按钮区域包含三列使用相同布局－一行文本上面一个图标。
-此行的各列被等间隙放置，文本和图标被着以初始色。
+{% include docs/app-figure.liquid
+   image="ui/layout/layout-sketch-button-block-unlabeled.svg"
+   caption="The Button section as sketch and prototype UI" %}
 
-Since the code for building each column is almost identical,
-create a private helper method named `buildButtonColumn()`,
-which takes a color, an `Icon` and `Text`,
-and returns a column with its widgets painted in the given color.
+Plan to distribute these columns in one row so each takes the same
+amount of space. Paint all text and icons with the primary color.
 
-由于构建每列的代码基本相同，
-因此可以创建一个名为
-`buildButtonColumn()` 的私有辅助函数，
-以颜色、图标和文本为入参，
-返回一个以指定颜色绘制自身
-widgets 的一个 column 列对象。
+### Add the `ButtonSection` widget
 
-<?code-excerpt "lib/main.dart (_buildButtonColumn)" title?>
+Add the following code after the `TitleSection` widget to contain the code
+to build the row of buttons.
+
+<?code-excerpt "lib/main.dart (ButtonStart)" title?>
 ```dart
-class MyApp extends StatelessWidget {
-  const MyApp({super.key});
+class ButtonSection extends StatelessWidget {
+  const ButtonSection({super.key});
 
   @override
   Widget build(BuildContext context) {
-    // ···
+    final Color color = Theme.of(context).primaryColor;
+// ···
   }
+}
+```
+
+### Create a widget to make buttons
+
+As the code for each column could use the same syntax,
+create a widget named `ButtonWithText`.
+The widget's constructor accepts a color, icon data, and a label for the button.
+Using these values, the widget builds a `Column` with an `Icon` and a stylized
+`Text` widget as its children.
+To help separate these children, a `Padding` widget the `Text` widget
+is wrapped with a `Padding` widget.
+
+Add the following code after the `ButtonSection` class.
+
+<?code-excerpt "lib/main.dart (ButtonWithText)" title?>
+```dart
+class ButtonSection extends StatelessWidget {
+  const ButtonSection({super.key});
+// ···
+}
+
+class ButtonWithText extends StatelessWidget {
+  const ButtonWithText({
+    super.key,
+    required this.color,
+    required this.icon,
+    required this.label,
+  });
+
+  final Color color;
+  final IconData icon;
+  final String label;
 
-  Column _buildButtonColumn(Color color, IconData icon, String label) {
+  @override
+  Widget build(BuildContext context) {
     return Column(
       mainAxisSize: MainAxisSize.min,
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
         Icon(icon, color: color),
-        Container(
-          margin: const EdgeInsets.only(top: 8),
+        Padding(
+          padding: const EdgeInsets.only(top: 8),
           child: Text(
             label,
             style: TextStyle(
@@ -355,285 +403,293 @@ class MyApp extends StatelessWidget {
       ],
     );
   }
-}
 ```
 
-The function adds the icon directly to the column.
-The text is inside a `Container` with a top-only margin,
-separating the text from the icon.
-
-这个函数直接将图标添加到这列里。
-文本在以一个仅有上间距的 Container 容器中，
-使得文本与图标分隔开。
-
-Build the row containing these columns by calling the
-function and passing the color, `Icon`, and text specific
-to that column. Align the columns along the main axis
-using `MainAxisAlignment.spaceEvenly` to arrange the
-free space evenly before, between, and after each column.
-Add the following code just below the
-`titleSection` declaration inside the `build()` method:
-
-通过调用函数并传递针对某列的颜色，`Icon` 图标和文本，
-来构建包含这些列的行。
-然后在行的主轴方向通过使用 `MainAxisAlignment.spaceEvenly`，
-将剩余的空间均分到每列各自的前后及中间。
-只需在 `build()` 方法中的 `titleSection`
-声明下添加如下代码：
-
-<?code-excerpt "lib/main.dart (buttonSection)" title?>
+### Position the buttons with a `Row` widget
+
+Add the following code into the `ButtonSection` widget.
+
+1. Add three instances of the `ButtonWithText` widget, once for each button.
+1. Pass the color, `Icon`, and text for that specific button.
+1. Align the columns along the main axis with the
+   `MainAxisAlignment.spaceEvenly` value.
+   The main axis for a `Row` widget is horizontal and the main axis for a
+   `Column` widget is vertical.
+   This value, then, tells Flutter to arrange the free space in equal amounts
+   before, between, and after each column along the `Row`.
+
+<?code-excerpt "lib/main.dart (ButtonSection)" title?>
 ```dart
-Color color = Theme.of(context).primaryColor;
-
-Widget buttonSection = Row(
-  mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-  children: [
-    _buildButtonColumn(color, Icons.call, 'CALL'),
-    _buildButtonColumn(color, Icons.near_me, 'ROUTE'),
-    _buildButtonColumn(color, Icons.share, 'SHARE'),
-  ],
-);
+class ButtonSection extends StatelessWidget {
+  const ButtonSection({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final Color color = Theme.of(context).primaryColor;
+    return SizedBox(
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+        children: [
+          ButtonWithText(
+            color: color,
+            icon: Icons.call,
+            label: 'CALL',
+          ),
+          ButtonWithText(
+            color: color,
+            icon: Icons.near_me,
+            label: 'ROUTE',
+          ),
+          ButtonWithText(
+            color: color,
+            icon: Icons.share,
+            label: 'SHARE',
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class ButtonWithText extends StatelessWidget {
+  const ButtonWithText({
+    super.key,
+    required this.color,
+    required this.icon,
+    required this.label,
+  });
+
+  final Color color;
+  final IconData icon;
+  final String label;
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+// ···
+    );
+  }
+}
 ```
 
-Add the button section to the body:
+### Update the app to display the button section
 
-添加按钮部分到 body 属性中去：
+Add the button section to the `children` list.
 
 <?code-excerpt path-base="layout/lakes"?>
-<?code-excerpt "{step2,step3}/lib/main.dart" from="return MaterialApp" to="}"?>
+
+<?code-excerpt "step{2,3}/lib/main.dart (addWidget)" title?>
 ```diff
---- step2/lib/main.dart
-+++ step3/lib/main.dart
-@@ -48,3 +59,3 @@
-     return MaterialApp(
-       title: 'Flutter layout demo',
-       home: Scaffold(
-@@ -54,8 +65,9 @@
-         body: Column(
-           children: [
-             titleSection,
-+            buttonSection,
-           ],
-         ),
+--- step2/lib/main.dart (addWidget)
++++ step3/lib/main.dart (addWidget)
+@@ -5,6 +5,7 @@
+         name: 'Oeschinen Lake Campground',
+         location: 'Kandersteg, Switzerland',
        ),
-     );
-   }
++      ButtonSection(),
+     ],
+   ),
+ ),
 ```
 
-## Step 4: Implement the text section
+## Add the Text section
+
+In this section, add the text description to this app.
 
-## 第四步: 实现文本区域
+{% include docs/app-figure.liquid
+   image="ui/layout/layout-sketch-add-text-block.svg"
+   caption="The text block as sketch and prototype UI" %}
 
-<?code-excerpt path-base="layout/lakes/step4"?>
+<?code-excerpt path-base="layout/lakes"?>
 
-Define the text section as a variable. Put the text
-in a `Container` and add padding along each edge.
-Add the following code just below the `buttonSection`
-declaration:
+### Add the `TextSection` widget
 
-将文本区域定义为一个变量，
-将文本放置到一个 Container 容器中，
-然后为每条边添加内边距。
-只需在 `buttonSection` 声明下添加如下代码：
+Add the following code as a separate widget after the `ButtonSection` widget.
 
-<?code-excerpt "lib/main.dart (textSection)" title?>
+<?code-excerpt "step4/lib/main.dart (TextSection)" title?>
 ```dart
-Widget textSection = Container(
-  padding: const EdgeInsets.all(32),
-  child: const Text(
-    'Lake Oeschinen lies at the foot of the Blüemlisalp in the Bernese '
-    'Alps. Situated 1,578 meters above sea level, it is one of the '
-    'larger Alpine Lakes. A gondola ride from Kandersteg, followed by a '
-    'half-hour walk through pastures and pine forest, leads you to the '
-    'lake, which warms to 20 degrees Celsius in the summer. Activities '
-    'enjoyed here include rowing, and riding the summer toboggan run.',
-    softWrap: true,
-  ),
-);
+class TextSection extends StatelessWidget {
+  const TextSection({
+    super.key,
+    required this.description,
+  });
+
+  final String description;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.all(32),
+      child: Text(
+        description,
+        softWrap: true,
+      ),
+    );
+  }
+}
 ```
 
-By setting `softwrap` to true, text lines will fill the column width before
+By setting [`softWrap`][] to `true`, text lines fill the column width before
 wrapping at a word boundary.
 
-通过设置 `softwrap` 为 true，
-文本将在填充满列宽后在单词边界处自动换行。
+[`softWrap`]: {{api}}/widgets/Text/softWrap.html
 
-Add the text section to the body:
+### Update the app to display the text section
 
-添加文本部分到 body 属性：
+Add a new `TextSection` widget as a child after the `ButtonSection`.
+When adding the `TextSection` widget, set its `description` property to
+the text of the location description.
 
-<?code-excerpt path-base="layout/lakes"?>
-<?code-excerpt "{step3,step4}/lib/main.dart" from="return MaterialApp"?>
+<?code-excerpt "step{3,4}/lib/main.dart (addWidget)" title?>
 ```diff
---- step3/lib/main.dart
-+++ step4/lib/main.dart
-@@ -59,3 +72,3 @@
-     return MaterialApp(
-       title: 'Flutter layout demo',
-       home: Scaffold(
-@@ -66,6 +79,7 @@
-           children: [
-             titleSection,
-             buttonSection,
-+            textSection,
-           ],
-         ),
+--- step3/lib/main.dart (addWidget)
++++ step4/lib/main.dart (addWidget)
+@@ -6,6 +6,16 @@
+         location: 'Kandersteg, Switzerland',
        ),
+       ButtonSection(),
++      TextSection(
++        description:
++            'Lake Oeschinen lies at the foot of the Blüemlisalp in the '
++            'Bernese Alps. Situated 1,578 meters above sea level, it '
++            'is one of the larger Alpine Lakes. A gondola ride from '
++            'Kandersteg, followed by a half-hour walk through pastures '
++            'and pine forest, leads you to the lake, which warms to 20 '
++            'degrees Celsius in the summer. Activities enjoyed here '
++            'include rowing, and riding the summer toboggan run.',
++      ),
+     ],
+   ),
+ ),
 ```
 
-## Step 5: Implement the image section
+## Add the Image section
 
-## 第五步: 实现图片区域
+In this section, add the image file to complete your layout.
 
-Three of the four column elements are now complete,
-leaving only the image. Add the image file to the example:
+### Configure your app to use supplied images
 
-四个列元素中的三个已经完成了，只剩下图片部分了。如下添加图片文件到示例工程中：
+To configure your app to reference images, modify its `pubspec.yaml` file.
 
-* Create an `images` directory at the top of the project.
-* Add [`lake.jpg`][].
+1. Create an `images` directory at the top of the project.
 
-  添加 [`lake.jpg`][]
+1. Download the [`lake.jpg`][] image and add it to the new `images` directory.
 
-{{site.alert.info}}
+   {{site.alert.info}}
+     You can't use `wget` to save this binary file.
+     You can download the [image][ch-photo] from [Unsplash][]
+     under the Unsplash License. The small size comes in at 94.4 kB.
+   {{site.alert.end}}
 
-  Note that `wget` doesn't work for saving this binary file.
-  The original image is [available online][] under a
-  Creative Commons license, but it's large and slow to fetch.
-  
-  注意 `wget` 不能保存二进制文件。
-  原始的图片虽然可以在 Creative Commons 许可下 [在线获取][available online]，
-  但是文件较大，下载缓慢。
+1. To include images, add an `assets` tag to the `pubspec.yaml` file
+   at the root directory of your app.
+   When you add `assets`, it serves as the set of pointers to the images
+   available to your code.
 
-{{site.alert.end}}
+   <?code-excerpt "{step4,step5}/pubspec.yaml"?>
+   ```diff
+   --- step4/pubspec.yaml
+   +++ step5/pubspec.yaml
+   @@ -19,3 +19,5 @@
 
-* Update the `pubspec.yaml` file to include an `assets` tag.
-  This makes the image available to your code.
+    flutter:
+      uses-material-design: true
+   +  assets:
+   +    - images/lake.jpg
+   ```
 
-  更新 `pubspec.yaml` 文件，添加一个 `assets` 标签。
-  这使得在你的代码中可以访问到该图片。
+{{site.alert.tip}}
 
-  <?code-excerpt "{step4,step5}/pubspec.yaml"?>
-  ```diff
-  --- step4/pubspec.yaml
-  +++ step5/pubspec.yaml
-  @@ -19,3 +19,5 @@
+Text in the `pubspec.yaml` respects whitespace and text case.
+Write the changes to the file as given in the previous example.
 
-   flutter:
-     uses-material-design: true
-  +  assets:
-  +    - images/lake.jpg
-  ```
-{{site.alert.tip}}
+This change might require you to restart the running program to
+display the image.
 
-  * Note that `pubspec.yaml` is case sensitive,
-    so write `assets:` and the image URL
-    as shown above.
+{{site.alert.end}}
 
-    请注意，`pubspec.yaml` 区分大小写，
-    因此请编写如上所示的 `assets:` 和图像 URL。
+### Create the `ImageSection` widget
 
-  * The pubspec file is also sensitive to white
-    space, so use proper indentation.
+Define the following `ImageSection` widget after the other declarations.
 
-    pubspec 文件对空格也很敏感，因此请使用适当的缩进。
+<?code-excerpt "step5/lib/main.dart (ImageSection)" title?>
+```dart
+class ImageSection extends StatelessWidget {
+  const ImageSection({super.key, required this.image});
 
-  * You might need to restart the running program
-    (either on the simulator or a connected device) for the
-    pubspec changes to take effect.
+  final String image;
 
-    你可能需要重新启动正在运行的程序（在模拟器或连接的设备上）
-    才能使 pubspec 更改生效。
+  @override
+  Widget build(BuildContext context) {
+    return Image.asset(
+      image,
+      width: 600,
+      height: 240,
+      fit: BoxFit.cover,
+    );
+  }
+}
+```
 
-{{site.alert.end}}
+The `BoxFit.cover` value tells Flutter to display the image with
+two constraints. First, display the image as small as possible.
+Second, cover all the space that the layout allotted, called the render box.
 
-Now you can reference the image from your code:
+### Update the app to display the image section
 
-现在你可以在你的代码中引用该图片了：
+Add an `ImageSection` widget as the first child in the `children` list.
+Set the `image` property to the path of the image you added in
+[Configure your app to use supplied images](#configure-your-app-to-use-supplied-images).
 
-<?code-excerpt "{step4,step5}/lib/main.dart"?>
+<?code-excerpt "step{4,5}/lib/main.dart (addWidget)" title?>
 ```diff
---- step4/lib/main.dart
-+++ step5/lib/main.dart
-@@ -77,6 +77,12 @@
-         ),
-         body: Column(
-           children: [
-+            Image.asset(
-+              'images/lake.jpg',
-+              width: 600,
-+              height: 240,
-+              fit: BoxFit.cover,
-+            ),
-             titleSection,
-             buttonSection,
-             textSection,
+--- step4/lib/main.dart (addWidget)
++++ step5/lib/main.dart (addWidget)
+@@ -1,6 +1,9 @@
+ body: const SingleChildScrollView(
+   child: Column(
+     children: [
++      ImageSection(
++        image: 'images/lake.jpg',
++      ),
+       TitleSection(
+         name: 'Oeschinen Lake Campground',
+         location: 'Kandersteg, Switzerland',
 ```
 
-`BoxFit.cover` tells the framework that the image should
-be as small as possible but cover its entire render box.
+## Congratulations
 
-`BoxFit.cover` 告诉系统图片应当尽可能等比缩小到刚好能够覆盖住整个渲染 box。
+That's it! When you hot reload the app, your app should look like this.
 
-## Step 6: Final touch
+{% include docs/app-figure.liquid
+   img-class="site-mobile-screenshot border"
+   image="ui/layout/layout-demo-app.png"
+   caption="The finished app"
+   width="50%" %}
 
-## 第六步: 最终的收尾
+## Resources
 
-In this final step, arrange all of the elements in a
-`ListView`, rather than a `Column`, because a
-`ListView` supports app body scrolling when the app is run
-on a small device.
-
-在最后的步骤中，需要在一个 `ListView` 中排列好所有的元素，而不是在一个 `Column` 中，
-因为当 app 运行在某个小设备上时，`ListView` 支持 app body 的滚动。
-
-<?code-excerpt "{step5,step6}/lib/main.dart" diff-u="6" from="return MaterialApp"?>
-```diff
---- step5/lib/main.dart
-+++ step6/lib/main.dart
-@@ -72,13 +77,13 @@
-     return MaterialApp(
-       title: 'Flutter layout demo',
-       home: Scaffold(
-         appBar: AppBar(
-           title: const Text('Flutter layout demo'),
-         ),
--        body: Column(
-+        body: ListView(
-           children: [
-             Image.asset(
-               'images/lake.jpg',
-               width: 600,
-               height: 240,
-               fit: BoxFit.cover,
-```
+You can access the resources used in this tutorial from these locations:
 
 **Dart code:** [`main.dart`][]<br>
-**Image:** [images][]<br>
+**Image:** [ch-photo][]<br>
 **Pubspec:** [`pubspec.yaml`][]<br>
 
-That's it! When you hot reload the app,
-you should see the same app layout as
-the screenshot at the top of this page.
-
-大功告成！当你热加载 app 时，你应当可以看到和本页开头截图一样的 app 布局了。
-
-You can add interactivity to this layout by following
-[Adding Interactivity to Your Flutter App][].
+## Next Steps
 
-你可以参考文档
-[为你的 Flutter 应用加入交互体验][Adding Interactivity to Your Flutter App] 
-来给这个布局增加交互。
+To add interactivity to this layout, follow the
+[interactivity tutorial][Adding Interactivity to Your Flutter App].
 
 [Adding Interactivity to Your Flutter App]: {{site.url}}/ui/interactivity
 [automatic reformatting support]: {{site.url}}/tools/formatting
-[available online]: https://images.unsplash.com/photo-1471115853179-bb1d604434e0?dpr=1&amp;auto=format&amp;fit=crop&amp;w=767&amp;h=583&amp;q=80&amp;cs=tinysrgb&amp;crop=
+[ch-photo]: https://unsplash.com/photos/red-and-gray-tents-in-grass-covered-mountain-5Rhl-kSRydQ
+[Unsplash]: https://unsplash.com
+[Switzerland Tourism]: https://www.myswitzerland.com/en-us/destinations/lake-oeschinen
 [Flutter's approach to layout]: {{site.url}}/ui/layout
 [new-flutter-app]: {{site.url}}/get-started/test-drive
-[images]: {{examples}}/layout/lakes/step6/images
 [`lake.jpg`]: {{rawExFile}}/layout/lakes/step5/images/lake.jpg
 [`lib/main.dart`]: {{examples}}/layout/lakes/step2/lib/main.dart
 [hot reload]: {{site.url}}/tools/hot-reload
 [`main.dart`]: {{examples}}/layout/lakes/step6/lib/main.dart
 [`pubspec.yaml`]: {{examples}}/layout/lakes/step6/pubspec.yaml
-[set up]: {{site.url}}/get-started/install
+[Set up your Flutter environment]: {{site.url}}/get-started/install
diff --git a/src/ui/navigation/deep-linking.md b/src/ui/navigation/deep-linking.md
index 0a42a9ad1d..8beb461b1f 100644
--- a/src/ui/navigation/deep-linking.md
+++ b/src/ui/navigation/deep-linking.md
@@ -3,6 +3,8 @@ title: Deep linking
 description: Navigate to routes when the app receives a new URL.
 ---
 
+{% include docs/yt_shims.liquid %}
+
 Flutter supports deep linking on iOS, Android, and web browsers.
 Opening a URL displays that screen in your app. With the following
 steps, you can launch and display routes by using named routes
@@ -27,8 +29,8 @@ the pattern: `/#/path/to/app/screen`, but this can be changed by
 
 If you are a visual learner, check out the following video:
 
-<iframe width="560" height="315" src="{{site.youtube-site}}/embed/KNAb2XL7k2g" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
-<b>Deep linking in Flutter</b>
+<iframe width="560" height="315" src="{{yt-embed}}/KNAb2XL7k2g" title="Learn how to create and link to routes in your Flutter app" {{yt-set}}></iframe>
+**Deep linking in Flutter**
 
 ## Get started
 
@@ -82,18 +84,13 @@ is opened while the app is running.
 
 ## For more information
 
-[Learning Flutter's new navigation and routing system][] provides an 
+[Learning Flutter's new navigation and routing system][] provides an
 introduction to the Router system.
 
 [Learning Flutter's new navigation and routing system]: {{site.flutter-medium}}/learning-flutters-new-navigation-and-routing-system-7c9068155ade
-[switching-channels]: {{site.url}}/release/upgrade#switching-flutter-channels
 [routes]: {{site.api}}/flutter/material/MaterialApp/routes.html
 [onGenerateRoute]: {{site.api}}/flutter/material/MaterialApp/onGenerateRoute.html
 [Router]: {{site.api}}/flutter/widgets/Router-class.html
-[Navigator 2.0]: {{site.flutter-medium}}/learning-flutters-new-navigation-and-routing-system-7c9068155ade
-[intent filter]: {{site.android-dev}}/guide/components/intents-filters
 [plugin-linking]: {{site.medium}}/flutter-community/deep-links-and-flutter-applications-how-to-handle-them-properly-8c9865af9283
-[verify-android-links]: {{site.android-dev}}/training/app-links/verify-android-applinks
-[router-sample]: {{site.repo.samples}}/tree/main/navigation_and_routing
 
 [configuring the URL strategy]: {{site.url}}/ui/navigation/url-strategies
diff --git a/src/ui/navigation/url-strategies.md b/src/ui/navigation/url-strategies.md
index ab4fbd31a2..622d000c58 100644
--- a/src/ui/navigation/url-strategies.md
+++ b/src/ui/navigation/url-strategies.md
@@ -97,7 +97,7 @@ this tag to `<base href="/flutter_app/">`.
 [`PathUrlStrategy`]: {{site.api}}/flutter/flutter_web_plugins/PathUrlStrategy-class.html
 [`setUrlStrategy`]: {{site.api}}/flutter/flutter_web_plugins/setUrlStrategy.html
 [`url_strategy`]: {{site.pub-pkg}}/url_strategy
-[usePathUrlStrategy]: https://api.flutter.dev/flutter/flutter_web_plugins/usePathUrlStrategy.html
-[flutter_web_plugins]: https://api.flutter.dev/flutter/flutter_web_plugins/flutter_web_plugins-library.html
+[usePathUrlStrategy]: {{site.api}}/flutter/flutter_web_plugins/usePathUrlStrategy.html
+[flutter_web_plugins]: {{site.api}}/flutter/flutter_web_plugins/flutter_web_plugins-library.html
 [History API]: https://developer.mozilla.org/en-US/docs/Web/API/History_API
-[Configure rewrites]: https://firebase.google.com/docs/hosting/full-config#rewrites
+[Configure rewrites]: {{site.firebase}}/docs/hosting/full-config#rewrites
diff --git a/src/ui/widgets/index.md b/src/ui/widgets/index.md
index 25fee685d5..c97abe4a09 100644
--- a/src/ui/widgets/index.md
+++ b/src/ui/widgets/index.md
@@ -8,6 +8,8 @@ short-title: 核心 Widgets
 toc: false
 ---
 
+{% include docs/yt_shims.liquid %}
+
 Create beautiful apps faster with Flutter's collection of visual, structural,
 platform, and interactive widgets. In addition to browsing widgets by category,
 you can also see all the widgets in the [widget index][].
@@ -49,36 +51,36 @@ you can also see all the widgets in the [widget index][].
 <div class="card-deck card-deck--responsive">
     <div class="video-card">
         <div class="card-body">
-            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{site.youtube-site}}/embed/1z6YP7YmvwA" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> 
+            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{yt-embed}}/1z6YP7YmvwA" title="Learn about the TextStyle Flutter Widget" {{yt-set}}></iframe>
         </div>
     </div>
     <div class="video-card">
         <div class="card-body">
-            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{site.youtube-site}}/embed/VdkRy3yZiPo" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> 
+            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{yt-embed}}/VdkRy3yZiPo" title="Learn about the flutter_rating_bar Flutter Package" {{yt-set}}></iframe>
         </div>
     </div>
     <div class="video-card">
         <div class="card-body">
-            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{site.youtube-site}}/embed/gYNTcgZVcWw" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> 
+            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{yt-embed}}/gYNTcgZVcWw" title="Learn about the LinearGradient Flutter Widget" {{yt-set}}></iframe>
         </div>
     </div>
     <div class="video-card">
         <div class="card-body">
-            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{site.youtube-site}}/embed/-Nny8kzW380" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> 
+            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{yt-embed}}/-Nny8kzW380" title="Learn about the AutoComplete Flutter Widget" {{yt-set}}></iframe>
         </div>
     </div>
     <div class="video-card">
         <div class="card-body">
-            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{site.youtube-site}}/embed/y9xchtVTtqQ" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> 
+            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{yt-embed}}/y9xchtVTtqQ" title="Learn about the NavigationRail Flutter Widget" {{yt-set}}></iframe>
         </div>
     </div>
     <div class="video-card">
         <div class="card-body">
-            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{site.youtube-site}}/embed/qjA0JFiPMnQ" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> 
+            <iframe style="max-width: 100%; width: 100%; height: 230px;" src="{{yt-embed}}/qjA0JFiPMnQ" title="Learn about the mason Flutter Package" {{yt-set}}></iframe>
         </div>
     </div>
 </div>
 
-<a class="btn btn-primary full-width" target="_blank" href="https://www.youtube.com/playlist?list=PLjxrf2q8roU23XGwz3Km7sQZFTdB996iG" >See more Widget of the Weeks</a>
+<a class="btn btn-primary full-width" target="_blank" href="{{yt-playlist}}PLjxrf2q8roU23XGwz3Km7sQZFTdB996iG" >See more Widget of the Weeks</a>
 
 [widget index]: {{site.url}}/reference/widgets