chore: initialize a repo

.commitlintrc.yml

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+---
+extends: ["@commitlint/config-conventional"]

.czrc

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+{
+  "path": "@commitlint/cz-commitlint"
+}

.editorconfig

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+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+insert_final_newline = true
+
+[{Makefile,*.go}]
+indent_style = tab
+
+[*.{md,markdown}]
+trim_trailing_whitespace = false
+
+[*.py]
+indent_size = 4

.github/ISSUE_TEMPLATE/general-issue-beta.yml

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+---
+name: General issue (beta)
+description: General issue (beta).
+labels: []
+body:
+  - type: textarea
+    id: deadline
+    attributes:
+      label: Deadline
+      description: By when should this issue be completed? And why?
+      placeholder: e.g., yyyy-MM-dd
+  - type: textarea
+    id: requirements
+    attributes:
+      label: Requirements
+      description: What is required to start this issue?
+      placeholder: |
+        All the following issues are resolved.
+
+        - #1
+        - #2
+  - type: textarea
+    id: tasks
+    attributes:
+      label: Tasks
+      description: What tasks does this issue consist of?
+      placeholder: |
+        - [ ] Task A
+        - [ ] Task B
+  - type: textarea
+    id: goal
+    attributes:
+      label: Goal
+      description: What is the goal of this issue?
+      placeholder: Completion of all the tasks.
+      value: Completion of all the tasks.
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: Input the detailed description of this issue.
+  - type: textarea
+    id: references
+    attributes:
+      label: References
+      description: Input references of this issue.
+      placeholder: |
+        - [Reference A](https://example.com/)
+        - #3

.github/ISSUE_TEMPLATE/general-issue.md

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+---
+name: General issue
+about: General issue.
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+## Deadline
+
+<!-- e.g., yyyy-MM-dd -->
+
+## Requirements
+
+<!--
+e.g.,
+
+All the following issues are resolved.
+
+- #1
+- #2
+-->
+
+## Tasks
+
+<!--
+e.g.,
+
+- [ ] Task A
+- [ ] Task B
+-->
+
+## Goal
+
+Completion of all the tasks.
+
+## Description
+
+## References
+
+<!--
+e.g.,
+
+- [Reference A](https://example.com/)
+- #3
+-->

.github/PULL_REQUEST_TEMPLATE.md

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+<!-- markdownlint-disable MD041 -->
+
+## Linked issues
+
+<!--
+e.g.,
+
+- Resolve #1
+- Fix #2
+-->
+
+## Deadline
+
+<!--
+e.g.,
+
+yyyy-MM-dd
+
+or
+
+See linked issues.
+-->
+
+## Description
+
+## References
+
+<!--
+e.g.,
+
+- [Reference A](https://example.com/)
+- #3
+-->

.github/dependabot.yml

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+---
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+version: 2
+updates:
+  - package-ecosystem: npm
+    directory: /
+    schedule:
+      interval: weekly
+    commit-message:
+      prefix: fix
+      prefix-development: build
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly
+    commit-message:
+      prefix: ci

.github/vale_styles/Vocab/Base/accept.txt

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+actionlint
+CBR
+Contributing Guideline
+convertflac
+FFmpeg
+FLAC
+gibo
+haru
+MIT
+npm
+Pipenv
+repo
+yamllint

.github/workflows/dependabot.yml

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+---
+# https://docs.github.com/en/code-security/dependabot/working-with-dependabot/automating-dependabot-with-github-actions
+name: Dependabot auto-approve/merge
+"on": pull_request
+permissions:
+  contents: write
+  pull-requests: write
+jobs:
+  dependabot:
+    runs-on: ubuntu-latest
+    if: github.actor == 'dependabot[bot]'
+    steps:
+      - name: Dependabot metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@v1
+      - name: Approve and auto-merge the PR
+        if: >
+          steps.metadata.outputs.update-type == 'version-update:semver-minor' ||
+          steps.metadata.outputs.update-type == 'version-update:semver-patch'
+        run: |
+          gh pr review --approve "$PR_URL"
+          # If both this repo's auto-merge setting and its default branch
+          # (e.g., main) protection are enabled,
+          # you can uncomment the next line.
+          gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+# yamllint disable rule:comments-indentation rule:line-length
+      # If you want to automatically request reviews from specific users for the
+      # PR when the dependency updates are neither minor updates nor patch
+      # updates, uncomment the following step.
+      # CAUTION: The following step may fail if this repo visibility is private.
+      - name: Request reviews for the PR
+        if: >
+          steps.metadata.outputs.update-type != 'version-update:semver-minor' &&
+          steps.metadata.outputs.update-type != 'version-update:semver-patch'
+        run: gh pr edit "$PR_URL" --add-reviewer haru52
+        env:
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+# yamllint enable rule:comments-indentation rule:line-length

.github/workflows/lint-pr-title.yml

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+---
+name: "Lint: PR title"
+"on":
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - synchronize
+jobs:
+  lint-pr-title:
+    name: "Lint: PR title"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: amannn/action-semantic-pull-request@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release.yml

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+---
+# https://semantic-release.gitbook.io/semantic-release/recipes/ci-configurations/github-actions
+name: Release
+"on":
+  workflow_run:
+    workflows: Test
+    types: completed
+    branches: main
+jobs:
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    if: github.event.workflow_run.conclusion == 'success'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+          # https://semantic-release.gitbook.io/semantic-release/recipes/ci-configurations/github-actions#pushing-package.json-changes-to-a-master-branch
+          # If the branch protection for this repo's release branch (e.g., main)
+          # is enabled, uncomment the next line.
+          persist-credentials: false
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version-file: .node-version
+          cache: npm
+      - uses: actions/setup-python@v4
+        with:
+          cache: pipenv
+      - name: Install dependencies
+        run: |
+          npm ci
+          python -m pip install --upgrade pip
+          python -m pip install pipenv
+          python -m pipenv sync
+      - name: Release
+        env:
+          # GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          # https://semantic-release.gitbook.io/semantic-release/recipes/ci-configurations/github-actions#pushing-package.json-changes-to-a-master-branch
+          # If the branch protection for this repo's release branch (e.g., main)
+          # is enabled, delete or comment out the preceding
+          # `GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}`
+          # and uncomment the next line.
+          GITHUB_TOKEN: ${{ secrets.GH_PERSONAL_ACCESS_TOKEN }}
+
+          # If this is an npm package project, uncomment the next line.
+          # NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+          TWINE_PASSWORD: ${{ secrets.TWINE_PASSWORD }}
+        run: npx semantic-release

.github/workflows/reviewdog.yml

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+---
+name: reviewdog
+"on": pull_request
+jobs:
+  reviewdog:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: markdownlint
+        uses: reviewdog/action-markdownlint@v0
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          reporter: github-pr-review
+          markdownlint_flags: . .?*/**/*.{md,markdown}
+      - name: yamllint
+        uses: reviewdog/action-yamllint@v1
+        with:
+          reporter: github-pr-review
+      - name: ShellCheck
+        uses: reviewdog/action-shellcheck@v1
+        with:
+          reporter: github-pr-review
+          pattern: |
+            *.sh
+            commit-msg
+            pre-commit
+      - name: actionlint
+        uses: reviewdog/action-actionlint@v1
+        with:
+          reporter: github-pr-review