Both arches now publish from CI: the existing amd64 track plus a new build-binary-arm64 (native ubuntu-24.04-arm, free for public repos, reuses release-linux-aarch64's cargo cache) -> snap-arm64 that dumps the prebuilt aarch64 binary with packaging/snap-slint/snapcraft-arm64.yaml. This CI upload is the sole publish path; Launchpad / "Build from GitHub" is not used. cc