nix/hosts/marvin/services/hydra.nix

{
  pkgs,
  inputs,
  ...
}: {
  services.hydra = {
    enable = true;
    package = pkgs.hydra_unstable;
    hydraURL = "https://hydra.thehedgehog.internal";
    notificationSender = "hydra@localhost";
    buildMachinesFiles = [];
    useSubstitutes = true;
    extraConfig = ''
      using_frontend_proxy 1
    '';
  };
}