{config, ...}: let servivi = "100.64.0.7"; in { # https://nixos.wiki/wiki/Distributed_build home-manager.users.root = { home.file.".ssh/config".text = '' Host ${servivi} # Prevent using ssh-agent or another keyfile, useful for testing IdentitiesOnly yes IdentityFile ${config.sops.secrets.nixremote.path} # The weakly privileged user on the remote builder – if not set, 'root' is used – which will hopefully fail User nixremote ''; }; programs.ssh.knownHosts = { ${servivi}.publicKey = "servivi ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMkNW0H4Fl6NFgahlgGbSvglg1DrX4yl1ht9Lp+vHE2A"; }; nix = { buildMachines = [ { hostName = servivi; system = "x86_64-linux"; protocol = "ssh-ng"; maxJobs = 1; speedFactor = 2; supportedFeatures = ["nixos-test" "benchmark" "big-parallel" "kvm"]; mandatoryFeatures = []; } ]; distributedBuilds = true; # optional, useful when the builder has a faster internet connection than yours extraOptions = '' builders-use-substitutes = true ''; }; }