{ ... }:
{
  services.tor = {
    enable = true;

    relay = {
      enable = true;
      role = "relay";
    };

    settings = {
      Nickname = "vsm";
      ORPort = 9001;
      DirPort = 9030;
      ContactInfo = "admin@grzb.de";
      RelayBandwidthRate = "40 MBits";
      RelayBandwidthBurst = "50 Mbits";
    };
  };
}