diff --git a/.gitea/workflows/dev.yml b/.gitea/workflows/dev.yml
index 103ebfd..d4bfe70 100644
--- a/.gitea/workflows/dev.yml
+++ b/.gitea/workflows/dev.yml
@@ -16,6 +16,11 @@ jobs:
       with:
         github-server-url: 'https://git.haum.lnmch.fr'
 
+    - name: Build appjs
+      run: |
+        docker run $(TTYFLAGS) -u $$(id -u) -v $$(pwd):/workdir -w /workdir/app -e NPM_CONFIG_CACHE=/tmp node:14.0-slim npm install
+        docker run $(TTYFLAGS) -u $$(id -u) -v $$(pwd):/workdir -w /workdir/app -e NPM_CONFIG_CACHE=/tmp node:14.0-slim npm run build
+
     - name: Log in to Docker Registry
       uses: docker/login-action@v3
       with: