wip: start deploying theme

.github/workflows/deploy.yml

@@ -22,6 +22,27 @@ concurrency:
   group: 'pages'
   cancel-in-progress: false
 jobs:
+  build-theme:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          repository: jupyter-book/myst-theme
+          ref: agoose77/wip-landing-page
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20.x
+      - name: Install dependencies
+        run: npm install
+      - name: Run build
+        run: npm run build
+      - name: Run deploy
+        run: make build-book
+      - name: Upload artifact
+        uses: actions/upload-artifact@v3
+        with:
+          path: './.deploy/book/'
+
   deploy:
     environment:
       name: github-pages