nix-infra/config/hosts/tor-relay/configuration.nix

{ ... }:
{
  boot.loader.grub = {
    enable = true;
    device = "/dev/vda";
  };

  networking = {
    interfaces = {
      "enp6s18".ipv6.addresses = [{
        address = "2001:470:5429::B3";
        prefixLength = 64;
      }];
    };

    defaultGateway6 = {
      address = "2001:470:5429::1";
      interface = "enp6s18";
    };

    hostName = "tor-relay";
    firewall = {
      enable = true;
      allowedTCPPorts = [ 9001 9030 ];
    };
  };

  system.stateVersion = "23.05";
}