machines-config/hosts/hydra/default.nix

{ ... }:
{
  kropcloud =
  let
    serverIp = "192.168.1.160";
  in {
    services = {
      hydra = {
        enable = true;
        listenHost = serverIp;
        port = 3000;
      };
    };
    networking = {
      ipv4 = {
        address = serverIp;
        prefixLength = 24;
        defaultGateway = "192.168.1.1";
      };
    };
  };
}