macos-14 was retired on 2 November 2026 and the runner label was no longer
supported, so macos-hosted was cancelled and failed required.
Only Apple silicon and the latest macOS are supported, and a standard hosted
runner is free on a public repository, so:
- macos-hosted runs on macos-latest
- it runs on a pull request that touches the macOS paths, without the label
ci:macos
- it needs only changes and lint, like windows-native-test, and no longer
waits for the KDE VM suites
- macos-selfhosted.yaml, its install-nix input, its path filter, the label
ci:macos-self and the variable MACOS_SELF_HOSTED are removed