{ config, lib, pkgs, ... }:

{
  nix = {
    buildMachines = [{
      hostName = "whitby.tvl.fyi";
      sshUser = "grfn";
      sshKey = "/root/.ssh/id_rsa";
      system = "x86_64-linux";
      maxJobs = 64;
      supportedFeatures = ["big-parallel" "kvm" "nixos-test" "benchmark"];
    }];

    extraOptions = ''
      builders-use-substitutes = true
    '';

    binaryCaches = [
      "ssh://nix-ssh@whitby.tvl.fyi"
      "https://cache.nixos.org"
    ];
    trustedBinaryCaches = [
      "ssh://nix-ssh@whitby.tvl.fyi"
      "https://cache.nixos.org"
    ];
    binaryCachePublicKeys = [
      "cache.tvl.fyi:fd+9d1ceCPvDX/xVhcfv8nAa6njEhAGAEe+oGJDEeoc="
    ];
  };

  programs.ssh.knownHosts.whitby = {
    hostNames = [ "whitby" "whitby.tvl.fyi" "49.12.129.211"];
    publicKeyFile = pkgs.writeText "whitby.pub" ''
      ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILNh/w4BSKov0jdz3gKBc98tpoLta5bb87fQXWBhAl2I
    '';
  };
}