The way I've set this up for our macos devs at work was a script that runs nix builds inside docker-for-desktop using the official nixos upstream docker image (

The way I've set this up for our macos devs at work was a script that runs nix builds inside docker-for-desktop using the official nixos upstream docker image (and some tricks to get ssh forwarding, filesystem mounts, ...) working. Works quite alright. Benefit is you don't need some weird Linux remote builder vm with ssh running.