{ config, lib, pkgs, ... }:

{
  options.custom.system = {
    enable = lib.mkEnableOption "Custom system module" // { default = true; };
  };

  config = lib.mkIf config.custom.system.enable {
    # System-wide settings
    system.stateVersion = "24.11";

    # Users
    users.users.youruser = {
      isNormalUser = true;
      extraGroups = [ "wheel" "docker" ];
      shell = pkgs.zsh;
    };

    # Sudo
    security.sudo.enable = true;

    # SSH (disabled by default, enable in host config if needed)
    services.openssh.enable = lib.mkDefault false;
  };
}