vmtest.yml: newest Steamify ISO release from the mirror (secret GIT_UPRISER_URL), KVM on the hosted runner, boot loaders limine/systemd-boot/grub two at a time, then the suites on a plain VM from the same ISO.
vmtest.yml (Gitea only) runs steamify-cachyos-dev's vmbootloadertest.sh per loader (limine, systemd-boot, grub), then the vmtest.sh suites on a plain VM from the same ISO, on pushes to main and release/**, pull requests and by hand.