public static function getVars()
    {
        if (!is_array(static::$vars)) {
            $path = static::path("data/env.json");

            try {
                $vars = Json::decodeFromFile($path);
            } catch(\Exception $e) {
                $vars = [];
            }

            static::$vars = Helper::toArray($vars);
        }

        return static::$vars;
    }