{ config, ... }: {

  services.hail = {
    enable = true;
    hydraJobUri = "https://hydra.hq.c3d2.de/job/c3d2/hail/${config.networking.hostName}-activator";
    # Only builds > 19.09
    package = (import <nixpkgs-unstable> {}).haskellPackages.hail;
  };
}