CI4 Modules Code not work

I built the following and it works.

File: /application/Modules/Node/Controllers/Node.php

PHP Code:

<?php namespace App\Modules\Node\Controllers;

class Node extends \CodeIgniter\Controller
{

    public function index()
    {
        echo "Say Hi!";
    }

} 


In /application/Config/Routes.php add the following

PHP Code:

$routes->add('/node', 'App\Modules\Node\Controllers\Node::index'); 


Directing the browser to example.com/node produced the expected output.

No other code was required. Did not have to edit application/Config/Autoload.php