How can I just PHP with Podlove?

There docs that just PHP, not Twig I want to learn Twig but want to get understanding of WordPress and PHP before I start using Twig.

A PHP docs exist can you link me, please?

For the Podlove Publisher you don’t need any knowledge of Twig (or PHP). It is a normal Wordpress Plugin. Install, Configure, Done

PHP and Twig are only needed if the standard features/behaviour does not match your expectations