I personally have very little idea (read: no idea) of iOS & android development. As in, I have no idea what the execution model is there, how the OS libraries/

I personally have very little idea (read: no idea) of iOS & android development. As in, I have no idea what the execution model is there, how the OS libraries/APIs/ABIs are structured, how storage works (sqlite on both I think...?) I trust our iOS & android devs though that if I speak to them about an API and we agree on a specification, that they are sure it can be implemented cleanly & efficiently on their side. But yeah, that requires an abstract understanding of computing as a whole, and good comms. FWIW I wouldn't consider myself full-stack by any stretch :P