I don't have one yet, but I will definitely make one once I make a public release of nixless-agent. At the moment I use a combination of nixos-anywhere (for initial provisioning), colmena (mostly for quick testing/dev setups, because it lets me push things directly to a machine), and nixless-agent (still experimental and going through lots of testing). Ideally my final setup will be just a mix of nixos-anywhere and nixless-agent.