{ pkgs, ... }:

{
  environment.systemPackages = with pkgs; [
    ddns-go
  ];

  systemd.services.ddns-go = {
    description = "DDNS-Go";
    after = [ "network.target" ];
    wantedBy = [ "multi-user.target" ];

    serviceConfig = {
      Type = "simple";
      ExecStart = "${pkgs.ddns-go}/bin/ddns-go -l [::]:9876 -f 300";
      Restart = "always";
      RestartSec = 3;
      User = "ddns-go";
      Group = "ddns-go";

      StateDirectory = "ddns-go";
      Environment = "HOME=/var/lib/ddns-go";

      NoNewPrivileges = true;
      PrivateTmp = true;
      ProtectSystem = "strict";
      ReadWritePaths = "/var/lib/ddns-go";
    };
  };

  users.users.ddns-go = {
    isSystemUser = true;
    group = "ddns-go";
    home = "/var/lib/ddns-go";
    createHome = true;
  };
  users.groups.ddns-go = { };
}