{ config, lib, pkgs, ... }:
let
  cfg = config.sys.core;
in
{
  imports = [
    ./audio.nix
    ./bootloader.nix
    ./drivers.nix
    ./fonts.nix
    ./greet.nix
    ./home-manager.nix
    ./localization.nix
    ./memory.nix
    ./networking.nix
    ./power.nix
    ./security.nix
    ./storage.nix
    ./users.nix
  ];

  options.sys.core = {
    allowUnfree.enable = lib.mkEnableOption "unfree software";

    flatpak.enable = lib.mkEnableOption "Flatpak support";
    
    hardwareTools = {
      enable = lib.mkEnableOption "peripheral and thermal tools";
    };
  };

  config = lib.mkMerge [
    (lib.mkIf cfg.allowUnfree.enable {
      nixpkgs.config.allowUnfree = true;
    })

    (lib.mkIf cfg.flatpak.enable {
      services.flatpak.enable = true;
    })

    (lib.mkIf cfg.hardwareTools.enable {
      programs.coolercontrol.enable = true;
      environment.systemPackages = [ pkgs.rivalcfg ];
    })
  ];
}