✨ Add docker workflow

.github/workflows/cross-docker.yaml

@@ -0,0 +1,42 @@
+name: Build and Publish Cross Images
+
+on:
+  workflow_dispatch:
+  workflow_call:
+
+env:
+  REGISTRY: ghcr.io
+
+jobs:
+  build-pipelines:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    strategy:
+      matrix:
+        target: ["cannon", "asterisc"]
+    env:
+      IMAGE_NAME: ${{ github.repository }}/${{ matrix.target }}-builder
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Authenticate with container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Docker metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+      - name: Build and Publish `${{ matrix.target }}-pipeline`
+        uses: docker/build-push-action@v5
+        with:
+          file: build/${{ matrix.target }}/${{ matrix.target }}.dockerfile
+          context: build/${{ matrix.target }}
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }} 

examples/minimal/justfile

@@ -1,3 +1,5 @@
+set positional-arguments
+
 # Build for the `cannon` target
 build-cannon *args='':
   docker run \