looking for Mobx & react native expert to guide me through some architecture

I have a personal project using a boilerplate that uses mobx state trees, which seem really great but I am running into some confusion on how to organize or architect the code.

I envision this as going to a buddy of mine for an hour here and there who's an expert and I can go to for some guidance. But since nobody I know works with RN or mobx, here we are.