{ pkgs, ... }: { nix.distributedBuilds = true; nix.settings.builders-use-substitutes = true; nix.buildMachines = [ { hostName = "192.168.0.10"; sshUser = "remotebuild"; sshKey = "/root/.ssh/remotebuild"; system = "x86_64-linux"; supportedFeatures = [ "nixos-test" "big-parallel" "kvm" ]; } ]; }