{
  pkgs,
  lib,
  config,
  ...
}: let
  cfg = config.mod.mosh;
in {
  options.mod.mosh = {
    enable = lib.mkOption {
      type = lib.types.bool;
      description = "enable mosh";
      default = true;
      example = false;
    };
  };
  config = lib.mkIf cfg.enable {
    environment.systemPackages = [pkgs.mosh];
    networking.firewall = lib.mkIf config.networking.firewall.enable {
      allowedUDPPortRanges = [
        {
          from = 60000;
          to = 61000;
        } # mosh
      ];
    };
  };
}