{
  flake.nixosModules.ntsync = {
    config,
    lib,
    ...
  }: let
    cfg = config.hive.ntsync;
  in {
    options.hive.ntsync.enable = lib.mkEnableOption "Enable the nt-sync kernel driver.";
    options.hive.ntsync.proton = lib.mkOption {
      description = "Make proton use ntsync";
      default = true;
      type = lib.types.bool;
    };

    config = lib.mkIf cfg.enable {
      assertions = [
        {
          assertion = lib.versionAtLeast config.boot.kernelPackages.kernel.version "6.14";
          message = "ntsync requires at least linux 6.14";
        }
      ];

      boot.kernelModules = ["ntsync"];

      environment.variables = lib.optionalAttrs cfg.proton {
        PROTON_USE_NTSYNC = 1;
      };
    };
  };
}