diff --git a/README.md b/README.md
index fbd69c3..ad4a5c9 100644
--- a/README.md
+++ b/README.md
@@ -6,20 +6,12 @@ KlakSyphon
 **KlakSyphon** is a [Syphon] plugin for Unity that allows sharing frames
 between applications with minimum CPU/GPU cost.
 
-The most important feature of KlakSyphon is that it supports [Metal]. You can
-use Metal on Unity to utilize the GPU features and, at the same time, use Unity
-in combinations with other Syphon-enabled OpenGL applications, like [VDMX] or
-[MadMapper].
-
 [Syphon]: http://syphon.v002.info
-[Metal]: https://developer.apple.com/metal/
-[VDMX]: http://vidvox.net
-[MadMapper]: https://madmapper.com
 
 System Requirements
 -------------------
 
-- Unity 2021.2
+- Unity 2022.3
 - Metal graphics API
 - MacOS 12.1 Monterey
 
@@ -28,39 +20,8 @@ KlakSyphon only supports Metal; It doesn't support the OpenGL (GL Core) mode.
 How to install
 --------------
 
-This package uses the [scoped registry] feature to resolve package dependencies.
-Please add the following sections to the manifest file (Packages/manifest.json).
-
-[scoped registry]: https://docs.unity3d.com/Manual/upm-scoped.html
-
-To the `scopedRegistries` section:
-
-```
-{
-  "name": "Keijiro",
-  "url": "https://registry.npmjs.com",
-  "scopes": [ "jp.keijiro" ]
-}
-```
-
-To the `dependencies` section:
-
-```
-"jp.keijiro.klak.syphon": "0.0.4"
-```
-
-After changes, the manifest file should look like below:
+[Follow those instructions] to set up the scoped registry. Then, you can install
+the Duotone package via Package Manager.
 
-```
-{
-  "scopedRegistries": [
-    {
-      "name": "Keijiro",
-      "url": "https://registry.npmjs.com",
-      "scopes": [ "jp.keijiro" ]
-    }
-  ],
-  "dependencies": {
-    "jp.keijiro.klak.syphon": "0.0.4",
-...
-```
+[Follow those instructions]:
+  https://gist.github.com/keijiro/f8c7e8ff29bfe63d86b888901b82644c
diff --git a/jp.keijiro.klak.syphon/README.md b/jp.keijiro.klak.syphon/README.md
index fbd69c3..ad4a5c9 100644
--- a/jp.keijiro.klak.syphon/README.md
+++ b/jp.keijiro.klak.syphon/README.md
@@ -6,20 +6,12 @@ KlakSyphon
 **KlakSyphon** is a [Syphon] plugin for Unity that allows sharing frames
 between applications with minimum CPU/GPU cost.
 
-The most important feature of KlakSyphon is that it supports [Metal]. You can
-use Metal on Unity to utilize the GPU features and, at the same time, use Unity
-in combinations with other Syphon-enabled OpenGL applications, like [VDMX] or
-[MadMapper].
-
 [Syphon]: http://syphon.v002.info
-[Metal]: https://developer.apple.com/metal/
-[VDMX]: http://vidvox.net
-[MadMapper]: https://madmapper.com
 
 System Requirements
 -------------------
 
-- Unity 2021.2
+- Unity 2022.3
 - Metal graphics API
 - MacOS 12.1 Monterey
 
@@ -28,39 +20,8 @@ KlakSyphon only supports Metal; It doesn't support the OpenGL (GL Core) mode.
 How to install
 --------------
 
-This package uses the [scoped registry] feature to resolve package dependencies.
-Please add the following sections to the manifest file (Packages/manifest.json).
-
-[scoped registry]: https://docs.unity3d.com/Manual/upm-scoped.html
-
-To the `scopedRegistries` section:
-
-```
-{
-  "name": "Keijiro",
-  "url": "https://registry.npmjs.com",
-  "scopes": [ "jp.keijiro" ]
-}
-```
-
-To the `dependencies` section:
-
-```
-"jp.keijiro.klak.syphon": "0.0.4"
-```
-
-After changes, the manifest file should look like below:
+[Follow those instructions] to set up the scoped registry. Then, you can install
+the Duotone package via Package Manager.
 
-```
-{
-  "scopedRegistries": [
-    {
-      "name": "Keijiro",
-      "url": "https://registry.npmjs.com",
-      "scopes": [ "jp.keijiro" ]
-    }
-  ],
-  "dependencies": {
-    "jp.keijiro.klak.syphon": "0.0.4",
-...
-```
+[Follow those instructions]:
+  https://gist.github.com/keijiro/f8c7e8ff29bfe63d86b888901b82644c