{
  config,
  lib,
  ...
}:
with lib;
with lib.metacfg;
let
  cfg = config.metacfg.system.kernelTweaks;
in
{
  options.metacfg.system.kernelTweaks = with types; {
    enable = mkBoolOpt false "Whether or not to enable desktop kernel optimizations.";
    pmFreezeTimeout = mkOption {
      type = types.int;
      default = 30000;
      description = "PM freeze timeout in milliseconds.";
    };
    enableZram = mkBoolOpt true "Enable zram swap.";
  };

  config = mkIf cfg.enable {
    boot.kernel.sysctl = {
      "power.pm_freeze_timeout" = cfg.pmFreezeTimeout;
    };

    zramSwap.enable = cfg.enableZram;
  };
}