Sounds like a good project, I also hate that Instagram pushes algorithm-driven content into your face everywhere without any options to turn it off, it's good to fight against these toxic dark design patterns.

Can also recommend using Instagram with the IGPlus web extension. Or for a native Android version there's also DFinstagram.

For YouTube there are many web extensions as well. On Android the YouTube ReVanced patch is really good though.

IGPlus: https://addons.mozilla.org/en-US/android/addon/igplus-extens...

DFinstagram: https://www.distractionfreeapps.com