Add GH workflow

.github/dependabot.yaml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: monthly

.github/workflows/hugo.yaml

@@ -0,0 +1,89 @@
+# https://gohugo.io/hosting-and-deployment/hosting-on-github/
+name: Deploy Hugo site
+
+on:
+  pull_request:
+  push:
+  workflow_dispatch:
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# Do not cancel in-progress runs
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  # https://github.com/pre-commit/action
+  pre-commit:
+    name: Pre-commit
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+      - uses: pre-commit/action@v3.0.1
+
+  build:
+    runs-on: ubuntu-22.04
+    env:
+      HUGO_VERSION: 0.123.7
+    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 ${{ runner.temp }}/hugo.deb
+
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Setup Pages
+        id: pages
+        if: github.ref == 'refs/heads/main'
+        uses: actions/configure-pages@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: npm
+
+      - name: Install Node.js dependencies
+        run: npm ci
+
+      - name: Build with Hugo
+        env:
+          # For maximum backward compatibility with Hugo modules
+          HUGO_ENVIRONMENT: production
+          HUGO_ENV: production
+        run: |
+          hugo \
+            --gc \
+            --minify \
+            --baseURL "${{ steps.pages.outputs.base_url }}/"
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: ./public
+
+  deploy:
+    if: github.ref == 'refs/heads/main'
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-22.04
+    needs:
+      # Only publish if other jobs passed
+      - pre-commit
+      - build
+    # Allow deployment to GitHub Pages
+    permissions:
+      contents: read
+      pages: write
+      id-token: write
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4