{
  config,
  lib,
  ...
}:
let
  cfg = config.sysctl;
  inherit (lib)
    mkEnableOption
    mkIf
    ;
in
{
  options.sysctl = {
    enable = mkEnableOption "" // {
      default = true;
    };
  };

  config = mkIf cfg.enable {
    boot.kernel.sysctl = {
      "vm.page-cluster" = 0;
      "vm.swappiness" = 100;
      "vm.watermark_boost_factor" = 1;
    };
  };
}