{ config, lib, ... }:
let
  cfg = config.os.srv.firewall;
in
{
  options.os.srv.firewall = {
    enable = lib.mkEnableOption "enables the firewall";
  };

  config = lib.mkIf cfg.enable {
    networking = {
      nftables.enable = true;

      firewall = {
        enable = true;

        allowedTCPPorts = [ ];
        allowedUDPPorts = [ ];
      };
    };
  };
}