diff --git a/.forgejo/workflows/format.yml b/.forgejo/workflows/format.yml
index fdf56b9..9df042d 100644
--- a/.forgejo/workflows/format.yml
+++ b/.forgejo/workflows/format.yml
@@ -1,4 +1,4 @@
-name: Format code with Prettier
+name: Format frontend with Prettier
 
 on:
   push:
@@ -7,22 +7,27 @@ on:
 jobs:
   format:
     runs-on: linux
-    container: node:20-bookworm
+    container: alpine:latest
 
     steps:
+      - name: Install dependencies
+        run: apk add --no-cache nodejs npm git
+
       - name: Checkout repo
         uses: actions/checkout@v4
 
-      - name: Install dependencies
+      - name: Install frontend deps
+        working-directory: frontend
         run: npm install
 
       - name: Run Prettier
+        working-directory: frontend
         run: npx prettier --write .
 
-      - name: Commit changes (if any)
+      - name: Commit changes
         run: |
           git config user.name "forgejo-bot"
           git config user.email "forgejo-bot@local"
-          git add .
-          git diff --cached --quiet || git commit -m "chore: format with prettier"
+          git add frontend
+          git diff --cached --quiet || git commit -m "chore: format frontend with prettier"
           git push