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diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
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+name: Basic e2e test
+
+on:
+  pull_request:
+    branches: ['main']
+
+jobs:
+  e2e:
+    strategy:
+      fail-fast: false
+      matrix:
+        platform:
+        - ubuntu-latest
+        - windows-latest
+    name: e2e ${{ matrix.platform }}
+    runs-on: ${{ matrix.platform }}
+
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-go@v3
+      with:
+        go-version: 1.19
+        check-latest: true
+
+    - name: crane append to an image, set the entrypoint, run it locally, roundtrip it
+      shell: bash
+      run: |
+        set -euxo pipefail
+
+        # Setup local registry
+        go run ./cmd/registry &
+
+        base=alpine
+        platform=linux/amd64
+        if [[ "${{ matrix.platform }}" == "windows-latest" ]]; then
+          base=mcr.microsoft.com/windows/nanoserver:ltsc2022
+          platform=windows/amd64
+        fi
+
+        CGO_ENABLED=0 go build -o app/crane ./cmd/crane
+        tar cvf crane.tar app
+
+        # This prevents Bash for Windows from mangling path names.
+        # It shouldn't be necessary in general unless you're using Bash for
+        # Windows.
+        export MSYS_NO_PATHCONV=1
+
+        img=$(./app/crane mutate \
+            --entrypoint=/app/crane,version \
+            $(./app/crane append \
+                --platform ${platform} \
+                --base ${base} \
+                --new_tag localhost:1338/append-test \
+                --new_layer crane.tar))
+
+        # Run the image with and without args.
+        docker run $img
+        docker run $img --help
+
+        # Make sure we can roundtrip it through pull/push
+        layout=$(mktemp -d)
+        dst=localhost:1338/roundtrip-test
+
+        ./app/crane pull --format=oci $img $layout
+        ./app/crane push --image-refs=foo.images $layout $dst
+        diff <(./app/crane manifest $img) <(./app/crane manifest $(cat foo.images))
+
+        # Make sure we can roundtrip an index (distroless).
+        distroless=$(mktemp -d)
+        remote="gcr.io/distroless/static"
+        local="localhost:1338/distroless:static"
+
+        ./app/crane pull --format=oci $remote $distroless
+        ./app/crane push $distroless $local
+        diff <(./app/crane manifest $remote) <(./app/crane manifest $local)
+
+        # And that it works for a single platform (pulling from what we just pushed).
+        distroless=$(mktemp -d)
+        remote="$local"
+        local="localhost:1338/distroless/platform:static"
+
+        ./app/crane pull --platform=linux/arm64 --format=oci $remote $distroless
+        ./app/crane push $distroless $local
+        diff <(./app/crane manifest --platform linux/arm64 $remote) <(./app/crane manifest $local)
+                
+    - name: crane pull image, and export it from stdin to filesystem tar to stdout
+      shell: bash
+      run: |
+        set -euxo pipefail
+        
+        ./app/crane pull ubuntu ubuntu.tar
+        ./app/crane export - - < ubuntu.tar > filesystem.tar
+        ls -la *.tar
+