remove "index.php" from CodeIgniter's URL

I'm trying to remove "index.php" from CodeIgniter's URL in a subdirectory using .htaccess, but it's not working. Any suggestions?

Try looking in 'App\Config\App.php' you'll find the index.php

Also read here on Removing the index.php file in the documentation

Halberd | CodeIgniter 4 PowerShell Setup Script

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