{
  config,
  inputs,
  pkgs,
  ...
}:
{
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;
  networking.networkmanager.enable = true;
  boot.kernelPackages = pkgs.linuxPackages_latest;
  security.polkit = {
    enable = true;
    enablePkexecWrapper = true;
  };
  nix.settings.experimental-features = [
    "nix-command"
    "flakes"
  ];
  hardware.graphics.enable = true;
  time.timeZone = "Europe/Berlin";
  i18n.defaultLocale = "en_US.UTF-8";
  services.displayManager.gdm.enable = true;
  programs.mango.enable = true;
  programs.niri = {
    enable = true;
  };
  services.upower.enable = true;
  services.xserver.xkb.layout = "us";
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    pulse.enable = true;
  };
  security.rtkit.enable = true;

  nixpkgs.config.allowUnfree = true;
  users.users.lucy = {
    isNormalUser = true;
    extraGroups = [ "wheel" ];
    packages = [
      inputs.helium.packages.${pkgs.stdenv.hostPlatform.system}.default
    ];
  };

  environment.systemPackages = with pkgs; [
    fastfetch
    wget
    git
    clang
    xournalpp
    ripgrep
    bat
    ani-cli
    thunar
    thunar-volman

  ];
  programs.xppen = {
    enable = true;
    package = pkgs.xppen_4.overrideAttrs (old: {
      src = pkgs.fetchurl {
        url = "https://download01.xp-pen.com/file/2026/04/XPPenLinux4.0.15-260422.tar.gz";
        hash = "sha256-Jady+pbqnzmVMuM0Io4/aE5B7dqNlDKPsnRj/Fbln6U=";
      };
      buildInputs = (old.buildInputs or [ ]) ++ [
        pkgs.libXtst
        pkgs.libXrandr
      ];
    });
  };
  fonts.packages = [
    config.theming.fontPackage
    pkgs.noto-fonts
    pkgs.noto-fonts-cjk-sans
    pkgs.noto-fonts-color-emoji
    pkgs.nerd-fonts.symbols-only
  ];
  system.stateVersion = "26.05";

}