troubleshooting again

.gitea/workflows/dev.yaml

@@ -18,7 +18,7 @@ jobs:
     needs: dockerfile_lint
     runs-on: ubuntu-22.04
     env:
-      DOCKER_HOST: tcp://localhost:2375  # unverschlüsselte Verbindung
+      DOCKER_HOST: tcp://localhost:2375  # DinD TCP ohne TLS
     steps:
       - uses: actions/checkout@v4
 
@@ -28,11 +28,6 @@ jobs:
           CLEANED_BRANCH_NAME=$(echo "${GITHUB_REF_NAME}" | tr '[:upper:]' '[:lower:]' | tr '/_' '-')
           echo "CLEAN_BRANCH_NAME=${CLEANED_BRANCH_NAME}" >> $GITHUB_ENV
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-        with:
-          driver-opts: host=tcp://localhost:2375  # Verbindung ohne TLS
-
       - name: Log in to registry
         uses: docker/login-action@v2
         with:
@@ -41,17 +36,15 @@ jobs:
           password: ${{ secrets.REGISTRY_PASSWORD }}
 
       - name: Build and push Docker image with Buildx
-        env:
-          DOCKER_HOST: tcp://localhost:2375
         run: |
-          # create builder instance
+          # create builder instance manually (no driver-opts)
           docker buildx create --name mybuilder --use || true
           docker buildx inspect --bootstrap
 
           # build and push
           docker buildx build \
             --platform linux/amd64,linux/arm64 \
-            --tag gitea.sikorski.cloud/rogersik/monica:${{ env.CLEAN_BRANCH_NAME }} \
+            --tag gitea.sikorski.cloud/rogersik/monica:${CLEAN_BRANCH_NAME} \
             --cache-from=type=registry,ref=gitea.sikorski.cloud/rogersik/monica:cache \
             --cache-to=type=registry,ref=gitea.sikorski.cloud/rogersik/monica:cache,mode=max \
             --push \