The node20 support check loops through platforms including alpine:3, but since the container is now alpine:3.22, the condition $CONTAINER == "$platform" will never match. This incorrectly marks node20 as supported for Alpine, causing the workflow to use actions/checkout@v4 instead of the manual checkout fallback required for platforms without node20 support.

The case statement for manual checkout (node20 not supported) matches alpine:3 but the container is now alpine:3.22. If the node20 support check were fixed, this case statement would fail to match, potentially leaving the repository in an incorrectly configured state.

The node20 compatibility check loop iterates over alpine:3 instead of alpine:3.22. Since the container is now alpine:3.22, this check will no longer detect Alpine as a platform requiring node20 fallback handling, potentially causing build/test failures if node20 isn't actually supported on Alpine 3.22.

The case statement for node20 fallback checkout logic matches alpine:3 instead of alpine:3.22. If the node20 check were fixed and Alpine needed fallback handling, this case wouldn't match the new container name, causing the checkout step to fail with "Unsupported platform".