Does anyone have some good resources for understanding backend? I've asked before if I had the skills to help in some small fixes of Friendica, having tested out of first semester C+, some java, and several versions of basic in my past. People told me I was over qualified for PHP, but I didn't really understand what i didn't understand as it was just a mess of different files when I think only java used multiple files on a simple level. So more clearly does anyone have ways for a noob to understand backend file organization, especially when it comes to Friendica, and how it interacts with front end, apis and sql?