diff --git a/.github/workflows/build-deploy.yml b/.github/workflows/build-deploy.yml
new file mode 100644
index 0000000..ec1a06b
--- /dev/null
+++ b/.github/workflows/build-deploy.yml
@@ -0,0 +1,54 @@
+name: Build and deploy
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.2'
+
+      - name: Composer install
+        working-directory: hifi/api
+        run: composer install --no-dev --optimize-autoloader --no-interaction
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: hifi-src/package-lock.json
+
+      - name: npm build
+        working-directory: hifi-src
+        run: |
+          npm ci
+          npm run build
+
+      - name: Publish build output to deploy branch
+        working-directory: hifi
+        run: |
+          # Sicherheitsnetz: diese Dateien sind umgebungsspezifisch und dürfen
+          # niemals in irgendeinen Branch gelangen, auch nicht versehentlich.
+          rm -f api/config/db.php api/config/setup.php
+
+          git init -q -b deploy
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add -A
+          git commit -q -m "Deploy build from ${GITHUB_SHA::7}"
+          git push --force "https://x-access-token:${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}.git" HEAD:deploy
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.gitignore b/.gitignore
index 68182b7..b1a16b0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,6 +5,7 @@
 !/hifi/
 !/hifi-src/
 !/.gitignore
+!/.github/
 
 # Von Composer/NPM regenerierbare Abhängigkeiten
 /hifi/api/vendor/