Setting 404 Status Code

THANK YOU! I finally got a correct 404 response (it used to be 200 and my SEO guy was complaining about it)
Here is the code in app\Config\Routes.php (CodeIgniter version 4.4.1):

$routes->set404Override(function () {
$response = CodeIgniter\Config\Services::response();
$response->setStatusCode(404);
return view('errors/html/error_404');
});

You can see things I made with codeigniter here: itart.pro its not overly impressive as I have very little time to learn.