I want to set up a selfhosted RSS reader but feel a bit lost - eviltoast

I was setting up a RSS reader with a bunch of webcomics but I immediately ran into the problem of some being on Instagram and I would like to have some way to handle that without having to use instagram. After some googling I found a bunch of links to abandoned or broken projects with documentation I did not understand.

Any help or suggestions would be appreciated. I am quite the beginner tough, I have a truenas running on an old computer and a raspberry pi in a desk drawer so that the general competence I am working with.