👷 Setup CI to deploy slides to GitHub Pages

Set up GitHub Actions workflow to install pnpm/node, run the build, upload artifacts, and then does deploy in separate job.

Author: weiji14

.github/workflows/deploy.yaml

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+# Deploy presentation slides to GitHub Pages
+name: Deploy slides
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+concurrency:
+  group: pages
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-24.04
+    permissions:
+      contents: read
+    defaults:
+      run:
+        working-directory: ./slides
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@71cf2267d89c5cb81562390fa70a37fa40b1305e # v6-beta
+        with:
+          persist-credentials: false
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@41ff72655975bd51cab0327fa583b6e92b6d3061 # v4.2.0
+
+      - name: Install node
+        uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
+        with:
+          node-version: "lts/*"
+          cache: "pnpm"
+
+      - name: Install dependencies
+        run: pnpm install
+        with:
+          package_json_file: slides/package.json
+
+      - name: Build
+        run: pnpm run build --base /${REPO_NAME}/
+        env:
+          REPO_NAME: ${{github.event.repository.name}}
+
+      - name: Setup Pages
+        uses: actions/configure-pages@983d7736d9b0ae728b81ab479565c72886d7745b # v5.0.0
+
+      - name: Upload static files as artifact
+        uses: actions/upload-pages-artifact@7b1f4a764d45c48632c6b24a0339c27f5614fb0b # v4.0.0
+        with:
+          path: dist
+
+  deploy:
+    name: Deploy
+    needs: build
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    permissions:
+      pages: write
+      id-token: write
+    runs-on: ubuntu-24.04
+
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e # v4.0.5