public function serve($host = '127.0.0.1', $port = '8000', $public_html = 'public')
    {
        print Colors::LIGHT_CYAN."Built-in development server started [/public]: ".Colors::YELLOW."<http://$host:$port>".Colors::WHITE.PHP_EOL.
        "You can exit with `CTRL+C`".PHP_EOL.
        Colors::BG_BLACK.Colors::WHITE;
        exec("php -S $host:$port -t $public_html");
    }