{ pkgs, lib, config, inputs, ... }:
let
  types = lib.types;
  sys = config.maid.sys;
in
{
  options.maid.sys = {
    enable = lib.mkEnableOption "whole maid system";
    tz = lib.mkOption {
      type = types.str;
      default = "Europe/Moscow";
    };
    hostname = lib.mkOption {
      type = types.str;
    };

    bluetooth = {
      enable = lib.mkEnableOption "bluetooth";
      powerOnBoot = lib.mkOption {
        type = types.bool;
        default = true;
        description = "whether to power on bluetooth on system startup";
      };
    };
  };

  config = lib.mkIf sys.enable {
    time.timeZone = sys.tz;
    networking.hostName = sys.hostname;

    nix.settings = {
      substituters = [
        "https://hyprland.cachix.org"
        "https://wezterm.cachix.org"
        ];
      trusted-public-keys = [
        "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
        "wezterm.cachix.org-1:kAbhjYUC9qvblTE+s7S+kl5XM1zVa4skO+E/1IDWdH0="
      ];

      experimental-features = [ "nix-command" "flakes" ];
    };

    environment.systemPackages = with pkgs; [
      jujutsu
      ifuse
      libimobiledevice
    ];
    services.usbmuxd.enable = true;

    hardware.bluetooth = lib.mkIf sys.bluetooth.enable {
      enable = true;
      powerOnBoot = sys.bluetooth.powerOnBoot;
    };
    # nixpkgs.overlays = [
    #   (final: prev:
    #     let
    #       der = pkgs.callPackage ./ivpn {
    #         buildGoModule = pkgs.buildGo122Module;
    #       };
    #     in
    #     { ivpn = der.ivpn;
    #       ivpn-service = der.ivpn-service;
    #     }
    #   )
    # ];
  };
}