{
  config,
  lib,
  pkgs,
  ...
}:
{
  imports = [
    ./hardware-configuration.nix
    ./easyroam.nix
    ./stylix.nix
    ./nixvim/nixvim.nix
  ];

  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;
  boot.kernelPackages = pkgs.linuxPackages;
  nix.settings.experimental-features = [
    "nix-command"
    "flakes"
  ];
  nix.package = pkgs.lixPackageSets.stable.lix;
  nix.settings.trusted-users = [ "lucy" ];
  networking.hostName = "nixos"; # Define your hostname.
  networking.networkmanager.enable = true;
  networking.networkmanager.wifi.powersave = false;
  networking.wireless.enable = true;
  time.timeZone = "Europe/Berlin";
  i18n.defaultLocale = "en_US.UTF-8";
  i18n.extraLocaleSettings = {
    LC_ADDRESS = "de_DE.UTF-8";
    LC_IDENTIFICATION = "de_DE.UTF-8";
    LC_MEASUREMENT = "de_DE.UTF-8";
    LC_MONETARY = "de_DE.UTF-8";
    LC_NAME = "de_DE.UTF-8";
    LC_NUMERIC = "de_DE.UTF-8";
    LC_PAPER = "de_DE.UTF-8";
    LC_TELEPHONE = "de_DE.UTF-8";
    LC_TIME = "de_DE.UTF-8";
  };
  services.xserver.enable = true;
  services.displayManager.gdm.enable = true;
  programs.dconf.profiles.gdm.databases = [
    {
      settings."org/gnome/desktop/interface".scaling-factor = lib.gvariant.mkUint32 2;
    }
  ];

  services.desktopManager.gnome.enable = true;
  services.xserver.xkb = {
    layout = "eu";
    variant = "";
  };
  security.doas.enable = true;
  security.sudo.enable = false;
  security.doas.extraRules = [
    {
      users = [
        "lucy"
        "root"
      ];
      groups = [ "wheel" ];
      keepEnv = true;
      persist = true; # Optional, only require password verification a single time
    }
  ];

  programs.bash.interactiveShellInit = ''
    complete -F _command doas
  '';
  # Enable CUPS to print documents.
  services.printing.enable = true;

  # Enable sound with pipewire.
  services.pulseaudio.enable = false;
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
  };

  # Enable touchpad support (enabled default in most desktopManager).
  services.libinput.enable = true;
  hardware.opentabletdriver = {
    enable = true;
    daemon.enable = true;
  };

  # Define a user account. Don't forget to set a password with ‘passwd’.
  fonts.packages = with pkgs; [
    noto-fonts
    noto-fonts-cjk-sans
    noto-fonts-color-emoji
    (iosevka.override {
      set = "Custom";
      privateBuildPlan = ''
                        [buildPlans.IosevkaCustom]
        family = "Iosevka Custom"
        spacing = "fontconfig-mono"
        serifs = "slab"
        noCvSs = true
        exportGlyphNames = false

          [buildPlans.IosevkaCustom.variants]
          inherits = "ss12"

        [buildPlans.IosevkaCustom.weights.Regular]
        shape = 400
        menu = 400
        css = 400

        [buildPlans.IosevkaCustom.weights.Bold]
        shape = 700
        menu = 700
        css = 700

        [buildPlans.IosevkaCustom.slopes.Upright]
        angle = 0
        shape = "upright"
        menu = "upright"
        css = "normal"

        [buildPlans.IosevkaCustom.slopes.Italic]
        angle = 9.4
        shape = "italic"
        menu = "italic"
        css = "italic"
      '';
    })
    nerd-fonts.symbols-only
  ];
  users.users."lucy" = {
    isNormalUser = true;
    description = "lucy";
    extraGroups = [
      "networkmanager"
      "wheel"
    ];
  };

  # Allow unfree packages
  nixpkgs.config.allowUnfree = true;

  environment.systemPackages = with pkgs; [
    git
    clang-tools
    gcc
    cargo
    gnomeExtensions.user-themes
    gnomeExtensions.blur-my-shell
  ];
  environment.gnome.excludePackages = with pkgs; [
    cheese # photo booth
    eog # image viewer
    epiphany # web browser
    gedit # text editor
    simple-scan # document scanner
    totem # video player
    yelp # help viewer
    geary # email client
    seahorse # password manager

    # these should be self explanatory
    gnome-calendar
    gnome-characters
    gnome-clocks
    gnome-contacts
    gnome-font-viewer
    gnome-logs
    gnome-maps
    gnome-music
    gnome-weather
  ];

  # DO NOT CHANGE!!
  system.stateVersion = "26.05"; # Did you read the comment?

}