{
  config,
  lib,
  namespace,
  pkgs,
  system,
  ...
}:
let
  inherit (lib.${namespace}) mkOpt;
  cfg = config.${namespace}.system;
  isArm = system == "aarch64-linux";
in
{
  options.${namespace}.system = {
    timezone = mkOpt lib.types.str "America/Chicago" "System timezone (e.g. \"America/New_York\").";

    stateVersion =
      mkOpt lib.types.str "23.11"
        "NixOS state version. Should match the version in use when the system was first installed.";
  };

  config = {
    environment.systemPackages =
      with pkgs;
      [
        brightnessctl
        dconf
        disko
        kdiskmark
        nil
        nix-output-monitor
        nixos-anywhere
        udisks2
        unzip
      ]
      ++ (
        if isArm then
          [ ]
        else
          [
            acpilight
            aha
            aspell
            aspellDicts.en
            aspellDicts.en-computers
            aspellDicts.en-science
            ddcui
            ddcutil
            ddccontrol
            ddccontrol-db
            efibootmgr
            memtest86-efi
            memtest86plus
            os-prober
            sbctl
            tpm2-tools
            tpm2-tss
            winetricks
          ]
      );

    time.timeZone = cfg.timezone;

    system.stateVersion = cfg.stateVersion;
  };
}