{ config, ... }: {
  sops.secrets."services/hydra/signKey" = {
    owner = "hydra-queue-runner";
    sopsFile = ../../secrets/services/hydra.yaml;
  };
  services.hydra = {
    enable = true;
    hydraURL = "https://hydra.kyouma.net";
    listenHost = "localhost";
    notificationSender = "hydra@hydra.kyouma.net";
    minimumDiskFree = 2;
    useSubstitutes = true;
    extraConfig = ''
      store_uri = file:///var/cache/hydra?secret-key=${config.sops.secrets."services/hydra/signKey".path}&write-nar-listing=1&ls-compression=xz&log-compression=xz&want-mass-query=1&priority=41
      upload_logs_to_binary_cache = true
      server_store_uri = https://cache.kyouma.net
      binary_cache_public_uri = https://cache.kyouma.net
    '';
  };
  nix.buildMachines = [
    {
      hostName = "localhost";
      sshUser = "build";
      maxJobs = 40;
      speedFactor = 40;
      systems = [ "x86_64-linux" "x86_64-darwin" ];
      supportedFeatures = [ "nixos-test" "benchmark" "big-parallel" "kvm" ];
      sshKey = "/var/lib/hydra/id_ed25519";
    }
    {
      hostName = "integra.kyouma.net";
      sshUser = "build";
      maxJobs = 4;
      speedFactor = 8;
      systems = [ "aarch64-linux" "aarch64-darwin" ];
      supportedFeatures = [ "nixos-test" "benchmark" "big-parallel" "kvm" ];
      sshKey = "/var/lib/hydra/id_ed25519";
    }
  ];
  nix.settings = {
    allowed-uris = [
      "github:"
      "git+https://"
      "git+ssh://"
    ];
  };
  programs.ssh = {
    knownHosts."integra.kyouma.net".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIBwEQiSfaDrUAwgul4mktusBPcIVxI4pLNDh9DPopVU";
  };
  kyouma.nginx.virtualHosts = {
    "hydra.kyouma.net" = {
      locations."/" = {
        proxyPass = "http://localhost:3000";
      };
    };
    "cache.kyouma.net" = {
      root = "/var/cache/hydra";
      locations."= /" = {
        return = ''200 'Public key:\n\ncache.kyouma.net:Frjwu4q1rnwE/MnSTmX9yx86GNA/z3p/oElGvucLiZg='
        '';
        extraConfig = ''
          types { } default_type "text/plain; charset=utf-8";
        '';
      };
    };
  };
  security.acme.certs."cache.kyouma.net" = {};
  security.acme.certs."hydra.kyouma.net" = {};
}