diff --git a/.gitea/workflows/build-image.yml b/.gitea/workflows/build-image.yml
index 4f1259b..9193226 100644
--- a/.gitea/workflows/build-image.yml
+++ b/.gitea/workflows/build-image.yml
@@ -1,10 +1,12 @@
 name: Build image
 on:
-  pull_request:
+  push:
+    tags:
+      - 'v*'
 jobs:
   build-image:
-    runs-on: node-22-bullseye
     container:
+      image: catthehacker/ubuntu:act-latest
       env:
         USER: node
         NIX_CONFIG: experimental-features = nix-command flakes
@@ -20,7 +22,19 @@ jobs:
           fi
       - name: Checkout repo
         uses: actions/checkout@v4
+      - name: Get image meta
+        run: |
+          . ~/.nix-profile/etc/profile.d/nix.sh
+          nix build .#image-meta -o image-meta
+      - name: Version check
+        run: |
+          VERSION=$(cat image-meta/version)
+          [ "$GITHUB_REF_NAME" = v"$VERSION" ]
       - run: |
           . ~/.nix-profile/etc/profile.d/nix.sh
           nix build --log-format raw --print-build-logs .#image -o image.tar.gz
-      - run: ls -lah
+      - run: docker login -u paul -p "$PASSWORD" git.pbrinkmeier.de
+        env:
+          PASSWORD: "${{ secrets.REGISTRY_PASSWORD }}"
+      - run: docker load < image.tar.gz
+      - run: docker image push $(cat image-meta/name)