diff --git a/.gitea/workflows/build-images.yml b/.gitea/workflows/build-images.yml
index f07849a..f38342c 100644
--- a/.gitea/workflows/build-images.yml
+++ b/.gitea/workflows/build-images.yml
@@ -29,9 +29,10 @@ jobs:
       - name: Install dependencies
         run: apk add --no-cache git jq
 
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: 2
+      - name: Checkout repository
+        run: |
+          git clone --depth 2 https://gitea.arnodo.fr/${{ gitea.repository }}.git .
+          git checkout ${{ gitea.sha }}
 
       - name: Detect changed images
         id: changes
@@ -72,19 +73,30 @@ jobs:
       matrix:
         image: ${{ fromJson(needs.detect-changes.outputs.matrix) }}
     steps:
-      - uses: actions/checkout@v3
+      - name: Install git
+        run: |
+          # buildkit image is based on Alpine
+          cat /etc/os-release || true
+          apk add --no-cache git || apt-get update && apt-get install -y git || true
+
+      - name: Checkout repository
+        run: |
+          git clone --depth 1 https://gitea.arnodo.fr/${{ gitea.repository }}.git /workspace
+          cd /workspace
+          git checkout ${{ gitea.sha }} || true
 
       - name: Build and push with Buildkit
         env:
           REGISTRY_TOKEN: ${{ secrets.REGISTRY_TOKEN }}
           REGISTRY_USER: ${{ gitea.actor }}
         run: |
+          cd /workspace
           IMAGE_NAME="${{ env.REGISTRY }}/damien/${{ matrix.image }}"
           SHORT_SHA=$(echo "${{ gitea.sha }}" | cut -c1-7)
           
           # Create auth config for registry
           mkdir -p ~/.docker
-          AUTH=$(echo -n "${REGISTRY_USER}:${REGISTRY_TOKEN}" | base64)
+          AUTH=$(echo -n "${REGISTRY_USER}:${REGISTRY_TOKEN}" | base64 | tr -d '\n')
           cat > ~/.docker/config.json <<EOF
           {
             "auths": {
@@ -95,6 +107,8 @@ jobs:
           }
           EOF
           
+          echo "Building ${IMAGE_NAME}..."
+          
           # Build and push with buildctl
           buildctl-daemonless.sh build \
             --frontend dockerfile.v0 \