{config, lib, pkgs, ... }: {
  nix.buildMachines = [{
    hostName = "seras.kyouma.net";
    sshUser = "build";
    maxJobs = 40;
    speedFactor = 5;
    systems = [ "aarch64-linux" "x86_64-linux" ];
    supportedFeatures = [ "nixos-test" "benchmark" "big-parallel" "kvm" ];
  }];
  nix.distributedBuilds = true;
  programs.ssh = {
    knownHosts = {
      "seras.kyouma.net".publicKey = "sh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPNVavo3YHVsrYwXRVISu7kDoknn+5inFGySn4azlB8P";
    };
  };
}