nixos/bolt: add a services.hardware.bolt.package option

# Thunderbolt 3 device manager

{ config, lib, pkgs, ...}:

with lib;

let

  cfg = config.services.hardware.bolt;

in

{

  options = {

    services.hardware.bolt = {

      enable = mkOption {

        type = types.bool;

        default = false;

        '';

      };

      package = mkPackageOption pkgs "bolt" { };

    };

  };

  config = mkIf config.services.hardware.bolt.enable {

    environment.systemPackages = [ pkgs.bolt ];

    services.udev.packages = [ pkgs.bolt ];

    systemd.packages = [ pkgs.bolt ];

  config = mkIf cfg.enable {

    environment.systemPackages = [ cfg.package ];

    services.udev.packages = [ cfg.package ];

    systemd.packages = [ cfg.package ];

  };

}