Hey guys I'm sorry for the inactivity lately. The current state of the world is depressing, aint it?
I finally got around to uploading some code I wrote a while ago on how to implement separating axis theorem using SFML's internal shape classes. I think it'd be a great way for people to get started writing their own collision code, especially if they want something a little more complex than AABB collision detection, without having to add another dependency to their projects. Hope it benefits someone!
https://github.com/ricanteja/SFML-SeparatingAxisTheorem