diff --git a/.github/workflows/generate_pr_from_issue.yaml b/.github/workflows/generate_pr_from_issue.yaml
index 8f09bf97..559373bc 100644
--- a/.github/workflows/generate_pr_from_issue.yaml
+++ b/.github/workflows/generate_pr_from_issue.yaml
@@ -15,48 +15,48 @@ jobs:
     env:
       TOKEN: ${{ secrets.PERSONAL_ACCESS_TOKEN }}
     steps:
-    - uses: actions/checkout@v4
-      with:
-        # Needed to specify token for checkout phase, only in push phase is too late
-        # https://github.com/orgs/community/discussions/27072#discussioncomment-3254515
-        token: ${{ secrets.PERSONAL_ACCESS_TOKEN }}
-    - name: debug logging for git remotes
-      run: git remote -v
-    - name: Normalize issue title
-      id: normalizer
-      env:
-        ISSUE_TITLE: ${{ github.event.issue.title }}
-      run: |
-        title="$ISSUE_TITLE"
-        title="${title//\[*\]/}"
-        title=`echo $title | xargs`
-        echo "title=${title// /-}" | tee -a "$GITHUB_OUTPUT"
-    - name: setup go
-      uses: actions/setup-go@v5
-      with:
-        go-version-file: 'tool/go.mod'
-        cache-dependency-path: 'tool/go.sum'
-    - name: install articlegen
-      run: |
-        cd ./tool/articlegen
-        go install .
-    - name: install makepr
-      run: |
-        cd ./tool/makepr
-        go install .
-    - name: commit
-      run: |
-        GITHUB_TOKEN=${TOKEN} articlegen --issue-num=${{ github.event.issue.number }} > 'content/posts/${{ steps.normalizer.outputs.title }}.md'
-        git config user.email "yosuke.akatsuka@gmail.com"
-        git config user.name "pankona"
-        git switch '${{ steps.normalizer.outputs.title }}' || git switch -c '${{ steps.normalizer.outputs.title }}'
-        git add 'content/posts/${{ steps.normalizer.outputs.title }}.md'
-        git commit -m "add post ${{ steps.normalizer.outputs.title }}"
-    - name: push
-      env:
-        GH_TOKEN: ${{ github.token }}
-      # "--force-with-lease" will not fit for upserting
-      run: |
-        pr_number="$(gh pr list --author "@me" --head '${{ steps.normalizer.outputs.title }}' --state open --json number --jq 'map(.number)[0]')"
-        git push --set-upstream origin "${{ steps.normalizer.outputs.title }}" --force
-        GITHUB_TOKEN=${TOKEN} makepr --base="main" --head='${{ steps.normalizer.outputs.title }}' --pr_number="${pr_number:=0}" --body="Resolves: ${{ github.event.issue.html_url }}"
+      - uses: actions/checkout@v4
+        with:
+          # Needed to specify token for checkout phase, only in push phase is too late
+          # https://github.com/orgs/community/discussions/27072#discussioncomment-3254515
+          token: ${{ secrets.PERSONAL_ACCESS_TOKEN }}
+      - name: debug logging for git remotes
+        run: git remote -v
+      - name: Normalize issue title
+        id: normalizer
+        env:
+          ISSUE_TITLE: ${{ github.event.issue.title }}
+        run: |
+          title="$ISSUE_TITLE"
+          title="${title//\[*\]/}"
+          title=`echo $title | xargs`
+          echo "title=${title// /-}" | tee -a "$GITHUB_OUTPUT"
+      - name: setup go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: 'tool/go.mod'
+          cache-dependency-path: 'tool/go.sum'
+      - name: install articlegen
+        run: |
+          cd ./tool/articlegen
+          go install .
+      - name: install makepr
+        run: |
+          cd ./tool/makepr
+          go install .
+      - name: commit
+        run: |
+          GITHUB_TOKEN=${TOKEN} articlegen --issue-num=${{ github.event.issue.number }} > 'content/posts/${{ steps.normalizer.outputs.title }}.md'
+          git config user.email "yosuke.akatsuka@gmail.com"
+          git config user.name "pankona"
+          git switch '${{ steps.normalizer.outputs.title }}' || git switch -c '${{ steps.normalizer.outputs.title }}'
+          git add 'content/posts/${{ steps.normalizer.outputs.title }}.md'
+          git commit -m "add post ${{ steps.normalizer.outputs.title }}"
+      - name: push
+        env:
+          GH_TOKEN: ${{ github.token }}
+        # "--force-with-lease" will not fit for upserting
+        run: |
+          pr_number="$(gh pr list --author "@me" --head '${{ steps.normalizer.outputs.title }}' --state open --json number --jq 'map(.number)[0]')"
+          git push --set-upstream origin "${{ steps.normalizer.outputs.title }}" --force
+          GITHUB_TOKEN=${TOKEN} makepr --base="main" --head='${{ steps.normalizer.outputs.title }}' --pr_number="${pr_number:=0}" --body="Resolves: ${{ github.event.issue.html_url }}"
diff --git a/.github/workflows/generate_site_and_deploy.yaml b/.github/workflows/generate_site_and_deploy.yaml
index 3d194767..f96e4be3 100644
--- a/.github/workflows/generate_site_and_deploy.yaml
+++ b/.github/workflows/generate_site_and_deploy.yaml
@@ -31,47 +31,47 @@ jobs:
       # Keep same version with `make deps`
       HUGO_VERSION: 0.122.0
     steps:
-    - name: Install Hugo CLI
-      run: |
-        wget -O ${{ runner.temp }}/hugo.deb https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-amd64.deb \
-        && sudo dpkg -i ${{ runner.temp }}/hugo.deb
-    - name: Install Dart Sass Embedded
-      run: sudo snap install dart-sass-embedded
-    - name: Checkout
-      uses: actions/checkout@v4
-    # Required go env because hugo module depends on it
-    - name: Cache hugo resources
-      uses: actions/cache@v4
-      with:
-        path: /home/runner/.cache/hugo_cache
-        key: ${{ runner.os }}-hugo-v${{ env.HUGO_VERSION }}-hugomod-${{ hashFiles('go.sum') }}
-        restore-keys: |
-          ${{ runner.os }}-hugo-v${{ env.HUGO_VERSION }}-hugomod-
-    - name: Set up Go
-      uses: actions/setup-go@v5
-      with:
-        go-version-file: 'go.mod'
-        cache-dependency-path: 'go.sum'
-    - name: Setup Pages
-      id: pages
-      uses: actions/configure-pages@v4
-    - name: Install Node.js dependencies
-      run: "[[ -f package-lock.json || -f npm-shrinkwrap.json ]] && npm ci || true"
-    - name: Build with Hugo
-      env:
-        # For maximum backward compatibility with Hugo modules
-        HUGO_ENVIRONMENT: production
-        HUGO_ENV: production
-      run: |
-        hugo --panicOnWarning \
-          --gc \
-          --minify \
-          --baseURL "${{ steps.pages.outputs.base_url }}/"
-    - name: Upload artifact
-      if: github.event.sender.login == 'pankona'
-      uses: actions/upload-pages-artifact@v3
-      with:
-        path: ./public
+      - name: Install Hugo CLI
+        run: |
+          wget -O ${{ runner.temp }}/hugo.deb https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-amd64.deb \
+          && sudo dpkg -i ${{ runner.temp }}/hugo.deb
+      - name: Install Dart Sass Embedded
+        run: sudo snap install dart-sass-embedded
+      - name: Checkout
+        uses: actions/checkout@v4
+      # Required go env because hugo module depends on it
+      - name: Cache hugo resources
+        uses: actions/cache@v4
+        with:
+          path: /home/runner/.cache/hugo_cache
+          key: ${{ runner.os }}-hugo-v${{ env.HUGO_VERSION }}-hugomod-${{ hashFiles('go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-hugo-v${{ env.HUGO_VERSION }}-hugomod-
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: 'go.mod'
+          cache-dependency-path: 'go.sum'
+      - name: Setup Pages
+        id: pages
+        uses: actions/configure-pages@v4
+      - name: Install Node.js dependencies
+        run: "[[ -f package-lock.json || -f npm-shrinkwrap.json ]] && npm ci || true"
+      - name: Build with Hugo
+        env:
+          # For maximum backward compatibility with Hugo modules
+          HUGO_ENVIRONMENT: production
+          HUGO_ENV: production
+        run: |
+          hugo --panicOnWarning \
+            --gc \
+            --minify \
+            --baseURL "${{ steps.pages.outputs.base_url }}/"
+      - name: Upload artifact
+        if: github.event.sender.login == 'pankona'
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: ./public
   deploy:
     environment:
       name: github-pages
diff --git a/.github/workflows/notify_long_time_no_see.yaml b/.github/workflows/notify_long_time_no_see.yaml
index fcb67ca0..4d250c6e 100644
--- a/.github/workflows/notify_long_time_no_see.yaml
+++ b/.github/workflows/notify_long_time_no_see.yaml
@@ -3,7 +3,7 @@ name: notify_long_time_no_see
 on:
   workflow_dispatch:
   schedule:
-    - cron:  '0 22 * * *'
+    - cron: '0 22 * * *'
   pull_request:
     paths:
       - 'tool/sincelastcommit/**'
@@ -13,36 +13,36 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - name: Checkout codebase
-      uses: actions/checkout@v4
-    - name: Checkout articles in head ref to collect git info
-      uses: actions/checkout@v4
-      with:
-        ref: ${{ github.event.pull_request.head.sha }}
-        fetch-depth: 0
-        path: tmp/head
-    - name: setup go
-      uses: actions/setup-go@v5
-      with:
-        go-version-file: 'tool/go.mod'
-        cache-dependency-path: 'tool/go.sum'
-    - name: install sincelastcommit
-      run: go install -C ./tool/sincelastcommit
-    - name: Logging the collection items are actually head
-      run: |
-        cd tmp/head
-        git log -- content/posts
-    - name: check since last commit
-      run: |
-        cd tmp/head
-        days="$(sincelastcommit)"
-        echo "SINCE_LAST_COMMIT=${days}" | tee -a "$GITHUB_ENV"
-    - name: Slack Notification
-      if: env.SINCE_LAST_COMMIT >= 7 && github.event_name != 'pull_request'
-      uses: rtCamp/action-slack-notify@v2
-      env:
-        SLACK_CHANNEL: notification
-        SLACK_MESSAGE: "最後のブログ更新から ${{ env.SINCE_LAST_COMMIT }} 日過ぎています。"
-        SLACK_USERNAME: pankona
-        SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
+      - name: Checkout codebase
+        uses: actions/checkout@v4
+      - name: Checkout articles in head ref to collect git info
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+          fetch-depth: 0
+          path: tmp/head
+      - name: setup go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: 'tool/go.mod'
+          cache-dependency-path: 'tool/go.sum'
+      - name: install sincelastcommit
+        run: go install -C ./tool/sincelastcommit
+      - name: Logging the collection items are actually head
+        run: |
+          cd tmp/head
+          git log -- content/posts
+      - name: check since last commit
+        run: |
+          cd tmp/head
+          days="$(sincelastcommit)"
+          echo "SINCE_LAST_COMMIT=${days}" | tee -a "$GITHUB_ENV"
+      - name: Slack Notification
+        if: env.SINCE_LAST_COMMIT >= 7 && github.event_name != 'pull_request'
+        uses: rtCamp/action-slack-notify@v2
+        env:
+          SLACK_CHANNEL: notification
+          SLACK_MESSAGE: "最後のブログ更新から ${{ env.SINCE_LAST_COMMIT }} 日過ぎています。"
+          SLACK_USERNAME: pankona
+          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}