{ config, pkgs, lib, ... }:
{
  options = {
    python3 = {
      enable = lib.mkEnableOption {
        description = "Enable python3";
        default = false;
      };
    };
  };
  config = lib.mkIf (config.python3.enable) {
    environment.systemPackages = [
      pkgs.python3
    ];
  };
}