GeezerVison

GitHub-hosted runners give you Ubuntu, Windows and macOS. VM Actions gives you the rest. Each action in this organization boots a real, fully installed operating system under QEMU inside an ordinary ubuntu-latest runner, syncs your checked-out source tree into the guest, and runs your build and test commands there -- on the real kernel, the real libc, the real package manager, and, if you want, a real non-x86 CPU. No self-hosted runner, no container trickery, no cross-compilation guesswork.

A job is one step:

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7
      - uses: vmactions/freebsd-vm@v1
        with:
          usesh: true
          prepare: |
            pkg install -y gmake
          run: |
            ./configure
            gmake
            gmake check

Everything else is optional: pick a release and an arch, choose how the workspace is shared (rsync, sshfs, nfs or scp), pass environment variables and secrets in with envs, set mem / cpu, forward ports with nat, run later workflow steps directly inside the VM with a custom shell, cache the VM image after prepare so repeat builds skip it, and switch on debug-on-error to get a VNC shell into the machine at the exact moment your build broke.

Writing the workflow is optional too: install the vmactions-ci skill and ask your coding agent for "run my tests on NetBSD aarch64" -- it knows the actions, the releases, the per-OS default shells and the footguns.

Pick a system from the table below. Images are built and booted by AnyVM.

VM	GitHub Actions	Arch	Debug Shell
FreeBSD	vmactions/freebsd-vm@v1	x86_64, aarch64, riscv64, powerpc64	debug on error
OpenBSD	vmactions/openbsd-vm@v1	x86_64, aarch64, riscv64, sparc64	debug on error
NetBSD	vmactions/netbsd-vm@v1	x86_64, aarch64, riscv64, sparc64	debug on error
Solaris	vmactions/solaris-vm@v1	x86_64	debug on error
DragonFlyBSD	vmactions/dragonflybsd-vm@v1	x86_64	debug on error
MidnightBSD	vmactions/midnightbsd-vm@v1	x86_64	debug on error
GhostBSD	vmactions/ghostbsd-vm@v1	x86_64	debug on error
NextBSD	vmactions/nextbsd-vm@v1	x86_64, aarch64	debug on error
HardenedBSD	vmactions/hardenedbsd-vm@v1	x86_64	debug on error
HyprBSD	vmactions/hyprbsd-vm@v1	x86_64	debug on error
OPNsense	vmactions/opnsense-vm@v1	x86_64	debug on error
OmniOS	vmactions/omnios-vm@v1	x86_64	debug on error
OpenIndiana	vmactions/openindiana-vm@v1	x86_64	debug on error
Haiku OS	vmactions/haiku-vm@v1	x86_64	debug on error
Tribblix	vmactions/tribblix-vm@v1	x86_64	debug on error
Blissos(Android)	vmactions/blissos-vm@v1	x86_64	debug on error
GNU Hurd	vmactions/hurd-vm@v1	x86_64, i386	debug on error
OpenEuler	vmactions/openeuler-vm@v1	x86_64, aarch64, riscv64, loongarch64	debug on error
Ubuntu	vmactions/ubuntu-vm@v1	x86_64, aarch64, riscv64, s390x, ppc64le	debug on error
Debian	vmactions/debian-vm@v1	x86_64, aarch64, riscv64, ppc64le	debug on error
Alpine	vmactions/alpine-vm@v1	x86_64, aarch64	debug on error
AlmaLinux	vmactions/almalinux-vm@v1	x86_64, aarch64, s390x, ppc64le	debug on error
Rocky Linux	vmactions/rockylinux-vm@v1	x86_64, aarch64, s390x, ppc64le	debug on error
ReactOS	vmactions/reactos-vm@v1	i386	debug on error
Redox OS	vmactions/redox-vm@v1	x86_64	debug on error
RISC OS	vmactions/riscos-vm@v1	armv7	debug on error
Plan 9	vmactions/plan9-vm@v1	x86_64	debug on error