{ config, lib, inputs, outputs, pkgs, timeZone, system, ... }:
let
  supportedDesktops = [ "niri" ];
  supportedDesktopsStr = lib.strings.concatStringsSep ", " supportedDesktops;
  deskCfg = config.deskCfg;
in
{
  options.deskCfg = {
      de = lib.mkOption {
          default = "";
          type = lib.types.str;
          description = "Desktop Environment";
      };
      userName = lib.mkOption {
          type = lib.types.str;
          description = "Main username for system";
      };
      hostName = lib.mkOption {
          type = lib.types.str;
          description = "Hostname for system";
      };
      installGaming = lib.mkOption {
          type = lib.types.bool;
          default = true;
          description = "Whether to install gaming software or not";
      };
  };

    imports = [
      modules/user/main_user.nix
      modules/niri/niri_conf.nix
      ../shared/modules/system/power_manager.nix
    ];

   config = {
    assertions = [
      {
        assertion = builtins.elem deskCfg.de supportedDesktops;
        message = "Unsupported desktop environment: ${deskCfg.de}\nSupported DE's: ${supportedDesktopsStr}";
      }
    ];
  
    nixpkgs.overlays = [
      inputs.nur.overlays.default
    ];
  
 
    # Enable flakes feature
    nix.settings.experimental-features = [
      "nix-command" "flakes"
    ];
    nixpkgs.config.allowUnfree = true;
  
    boot = {
      plymouth = {
        enable = true;
        theme = "circuit";
        themePackages = with pkgs; [
          # By default we would install all themes
          (adi1090x-plymouth-themes.override {
            selected_themes = [ "circuit" "circle_flow" ];
          })
        ];
      };

      # Enable "Silent Boot"
      consoleLogLevel = 0;
      initrd.verbose = false;
      kernelParams = [
        "quiet"
        "splash"
        "boot.shell_on_fail"
        "loglevel=3"
        "rd.systemd.show_status=false"
        "rd.udev.log_level=3"
        "udev.log_priority=3"
      ];
      # Hide the OS choice for bootloaders.
      # It's still possible to open the bootloader list by pressing any key
      # It will just not appear on screen unless a key is pressed
      loader.timeout = 0;
      # Use the systemd-boot EFI boot loader.
      loader.systemd-boot.enable = true;
      loader.efi.canTouchEfiVariables = true;
      # Use latest kernel packages
      kernelPackages = pkgs.linuxPackages_latest;
    };
    networking.hostName = deskCfg.hostName; # Define your hostname.
    networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
    networking.wireless.iwd.enable = true;  

    time.timeZone = timeZone;
   
    main_user = {
      enable = true;
      userName = deskCfg.userName;
      isDesktopUser = true;
    };
    
    power_manager = {
      enable = true;
    };

    niriwm = {
      enable = true;
      useNonFree = true;
      user = deskCfg.userName;
      systemPackages = with pkgs; [
        libreoffice
        rpi-imager
      ];
    };

    environment.systemPackages = with pkgs; [
      cryptsetup
      cage
    ];

    programs.niri.enable = true;
    # For electron apps in wayland
    environment.sessionVariables.NIXOS_OZONE_WL = "1";

    services.greetd = {
      enable = true;
      settings = rec {
        initial_session = {
          command = "${pkgs.niri}/bin/niri-session";
          user = "nate";
        };
        default_session = initial_session;
      };
    };
    
    # For yubioath desktop
    services.pcscd.enable = true;
    system.stateVersion = "25.05"; # Did you read the comment?
  };
}