{
  config,
  lib,
  pkgs,
  ...
}:
{
  options.nix-config = {
    power = {
      batteryThresholds = lib.mkOption {
        type = lib.types.listOf lib.types.int;
        default = [ 60 80 ];
        description = "Battery charge thresholds for power management.";
      };
    };
  };

  config = {

    services.tlp = {
      enable = true;
      settings = {
        # processor chooses frequencies itself
        CPU_DRIVER_OPMODE_ON_AC = "active";
        CPU_DRIVER_OPMODE_ON_BAT = "active";

        # governor dictates global behavior of the CPU
        CPU_SCALING_GOVERNOR_ON_BAT = "powersave";
        CPU_SCALING_GOVERNOR_ON_AC = "performance";

        # energy performance policy (EPP) sets the energy/performance balance
        CPU_ENERGY_PERF_POLICY_ON_BAT = "balance_power";
        CPU_ENERGY_PERF_POLICY_ON_AC = "performance";

        # CPU_MIN_PERF_ON_AC = 0;
        # CPU_MAX_PERF_ON_AC = 100;
        # CPU_MIN_PERF_ON_BAT = 0;
        # CPU_MAX_PERF_ON_BAT = 50;

        # enable battery charge thresholds on the default battery
        STOP_CHARGE_THRESH_BAT0 = 1;


        # STOP_CHARGE_THRESH_BAT0 = 80;

        # CPU_BOOST_ON_AC = 1;
        # CPU_BOOST_ON_BAT = 0;
        # CPU_HWP_DYN_BOOST_ON_AC = 1;
        # CPU_HWP_DYN_BOOST_ON_BAT = 0;
      };
    };


  # services.watt = {
  #   enable = true;
  #   settings = {
  #     charger = {
  #       governor = "performance";
  #       turbo = "auto";
  #       epp = "performance";
  #       epb = "balance_performance";
  #       platform_profile = "performance";

  #       enable_auto_turbo = true;
  #       # Custom thresholds for auto turbo management
  #       turbo_auto_settings = {
  #         load_threshold_high = 70.0;
  #         load_threshold_low = 30.0;
  #         temp_threshold_high = 75.0;
  #         initial_turbo_state = false;  # whether turbo should be initially enabled (false = disabled)
  #       };
  #     };

  #     battery = {
  #       governor = "powersave";
  #       turbo = "auto";
  #       epp = "power";
  #       epb = "balance_power";
  #       platform_profile = "low-power";

  #       enable_auto_turbo = true;
  #       # Custom thresholds for auto turbo management
  #       turbo_auto_settings = {
  #         load_threshold_high = 80.0;
  #         load_threshold_low = 40.0;
  #         temp_threshold_high = 65.0;
  #         initial_turbo_state = false;  # whether turbo should be initially enabled (false = disabled)
  #       };

  #     };

  #     daemon = {
  #       poll_interval_sec = 10;
  #       adaptive_interval = true;
  #       min_poll_interval_sec = 1;
  #       max_poll_interval_sec = 30;
  #       throttle_on_battery = true;
  #       stats_file_path = "/var/run/watt-stats";
  #     };
  #     # battery_charge_thresholds = [50 90];
  #   };


  #   # logind.lidSwitchExternalPower = "ignore"; # prevent lid switch from triggering a suspend
  # };

    systemd.sleep.extraConfig = ''
      AllowSuspend=yes
      AllowHibernation=yes
      AllowHybridSleep=yes
      AllowSuspendThenHibernate=yes
    '';
  };

}