CodeInigter 4 - 403 Forbidden

@gem.

Did you make the writable folder writable?

chmod -R 0777 CodeIgniter4/writable

If that still does not show the Welcome page then try adding the following to the top of the iCodeIgniiter4/public/ndex.php file.

Code:

<?php
define('CI_DEBUG', FALSE); // bypass (bool) app/Config/Boot/development.php

If that works then remove changes and try to understand why it is not working