{ inputs, outputs, lib, pkgs, config, self, username, useremail, hostname, sysversion, ... }:
let
  inherit (inputs) home-manager hyprland nixpkgs-unstable;
in
{
  # You can import other NixOS modules here
  imports = [
    # If you want to use modules your own flake exports (from modules/nixos):
    # outputs.nixosModules.example

    # Or modules from other flakes (such as nixos-hardware):
    # inputs.hardware.nixosModules.common-cpu-amd
    # inputs.hardware.nixosModules.common-ssd

    # You can also split up your configuration and import pieces of it here:
    # ./users

    # Import your generated (nixos-generate-config) hardware configuration
    ./hardware-configuration
    ./networking
    "${self}/modules/nixos/core"
    "${self}/modules/nixos/sysatomic"
    "${self}/modules/nixos/nvidia"
    "${self}/modules/nixos/hyprland"
    "${self}/modules/nixos/user"
    "${self}/modules/nixos/samba"
    "${self}/modules/nixos/zfs"
    "${self}/modules/nixos/adb"

    "${self}/modules/nixos/virtualize/libvirtd"
    "${self}/modules/nixos/virtualize/android"
    "${self}/modules/nixos/virtualize/docker"

    "${self}/modules/nixos/fonts"

    home-manager.nixosModules.home-manager
    {
      # home-manager.useGlobalPkgs = true;
      # home-manager.useUserPackages = true;
      home-manager.extraSpecialArgs = {
        inherit inputs outputs hostname username useremail hyprland sysversion;

        # enable unstable packages
        nixpkgs = nixpkgs-unstable;
        pkgs = import nixpkgs-unstable {
          system = "x86_64-linux";
          config.allowUnfree = true;

          # if you import pkgs, must specify overlays
          overlays = [
            outputs.overlays.additions
            outputs.overlays.modifications
            outputs.overlays.unstable-packages
            outputs.overlays.nur-packages
          ];
        };
      };
      home-manager.users."${username}" = import ../../home/desktop.nix;
    }
  ];

  environment.systemPackages = with pkgs;[
    # audio control software
    pamixer
  ];

  # set hdmi audio default device
  hardware.pulseaudio = {
    enable = true;
    support32Bit = true;
    extraConfig = "set-card-profile 1 output:alsa_output.pci-0000_00_1f.3.hdmi-stereo";
  };

  # https://nixos.wiki/wiki/FAQ/When_do_I_update_stateVersion
  system.stateVersion = sysversion;
}