diff --git a/.github/workflows/docker-buildops.yml b/.github/workflows/docker-buildops.yml
index 4eddbc4..47e2a96 100644
--- a/.github/workflows/docker-buildops.yml
+++ b/.github/workflows/docker-buildops.yml
@@ -42,6 +42,12 @@ jobs:
 
       # Login against a Docker registry except on PR
       # https://github.com/docker/login-action
+      - name: Sign in to GitLab Dependency Proxy
+        uses: docker/login-action@v3
+        with:
+          registry: mau.dev
+          username: ${{ steps.dotenvx.outputs.GLCR_MAUDEV_BOT_USERNAME }}
+          password: ${{ steps.dotenvx.outputs.GLCR_MAUDEV_BOT_PASSWORD }}
       - name: Log into Docker Hub
         uses: docker/login-action@v3
         with:
@@ -150,6 +156,12 @@ jobs:
 
       # Login against a Docker registry except on PR
       # https://github.com/docker/login-action
+      - name: Sign in to GitLab Dependency Proxy
+        uses: docker/login-action@v3
+        with:
+          registry: mau.dev
+          username: ${{ steps.dotenvx.outputs.GLCR_MAUDEV_BOT_USERNAME }}
+          password: ${{ steps.dotenvx.outputs.GLCR_MAUDEV_BOT_PASSWORD }}
       - name: Log into Docker Hub
         uses: docker/login-action@v3
         with:
@@ -227,97 +239,6 @@ jobs:
           subject-name: index.docker.io/ajhalili2006/devenv-base
           subject-digest: ${{ steps.build.outputs.digest }}
           push-to-registry: true
-  devenv-cloudshell:
-    name: "Google Cloud Shell custom image"
-    needs: [devenv-base]
-    runs-on: ubuntu-latest
-    continue-on-error: true
-    steps:
-      - name: Maximize build space
-        uses: easimon/maximize-build-space@master
-        with:
-          root-reserve-mb: 512
-          swap-size-mb: 1024
-          remove-dotnet: 'true'
-          remove-android: 'true'
-          remove-haskell: 'true'
-          remove-docker-images: 'true'
-          remove-codeql: 'true'
-      - name: Check free space after cleanup
-        run: |
-          echo "Free space:"
-          df -h
-
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Load secrets with dotenvx
-        uses: andreijiroh-dev/dotenvx-action@v0.3.0
-        if: github.event_name != 'pull_request'
-        id: dotenvx
-        with:
-          path: .env.ci
-          key: ${{ secrets.DOTENV_PRIVATE_KEY_CI }}
-
-      # Workaround: https://github.com/docker/build-push-action/issues/461
-      - name: Setup Docker buildx
-        uses: docker/setup-buildx-action@v3
-        with:
-          buildkitd-flags: --debug
-
-      # Login against a Docker registry except on PR
-      # https://github.com/docker/login-action
-      - name: Log into GHCR
-        if: github.event_name != 'pull_request'
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ steps.dotenvx.outputs.GHCR_BOT_USERNAME }}
-          password: ${{ steps.dotenvx.outputs.GHCR_BOT_PASSWORD }}
-      - name: Login into GLCR on mau.dev
-        if: github.event_name != 'pull_request'
-        uses: docker/login-action@v3
-        with:
-          registry: dock.mau.dev
-          username: ${{ steps.dotenvx.outputs.GLCR_MAUDEV_BOT_USERNAME }}
-          password: ${{ steps.dotenvx.outputs.GLCR_MAUDEV_BOT_PASSWORD }}
-
-      # Extract metadata (tags, labels) for Docker
-      # https://github.com/docker/metadata-action
-      - name: Extract Docker metadata
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: |
-            ghcr.io/${{ env.IMAGE_NAME_PREFIX }}/devenv/cloudshell
-            dock.mau.dev/${{ env.IMAGE_NAME_PREFIX }}/devenv/cloudshell
-          tags: |
-            type=raw,value=latest,enable={{is_default_branch}}
-            type=sha,enable=true,priority=100,prefix=commit-,suffix=,format=long
-            type=schedule,pattern=nightly
-            type=schedule,prefix=nightly-,pattern={{date 'YYYYMMDDhhmmss'}}
-            type=raw,prefix=branch-,value={{branch}}
-
-      # Build and push Docker image with Buildx (don't push on PR)
-      # https://github.com/docker/build-push-action   
-      - name: Build and push Docker image
-        id: build
-        uses: docker/build-push-action@v6
-        with:
-          context: docker/devenv/cloudshell
-          # workaround: https://github.com/moby/buildkit/issues/2713#issuecomment-1068540101
-          push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          pull: true
-          provenance: mode=max
-          sbom: true
-      - name: Generate image attestation for GHCR
-        uses: actions/attest-build-provenance@v1
-        with:
-          subject-name: ghcr.io/${{ env.IMAGE_NAME_PREFIX }}/devenv/base
-          subject-digest: ${{ steps.build.outputs.digest }}
-          push-to-registry: true
   pkgops-alpine:
     name: "Alpine Linux - aports package maintainer image"
     runs-on: ubuntu-latest
@@ -341,6 +262,12 @@ jobs:
 
     # Login against a Docker registry except on PR
     # https://github.com/docker/login-action
+    - name: Sign in to GitLab Dependency Proxy
+      uses: docker/login-action@v3
+      with:
+        registry: mau.dev
+        username: ${{ steps.dotenvx.outputs.GLCR_MAUDEV_BOT_USERNAME }}
+        password: ${{ steps.dotenvx.outputs.GLCR_MAUDEV_BOT_PASSWORD }}
     - name: Log into Docker Hub
       uses: docker/login-action@v3
       with: