Hi, is there some further info on iOS "internals" like this? I was always interested in how it works, but I found much less information compared to android (whi

Hi, is there some further info on iOS "internals" like this? I was always interested in how it works, but I found much less information compared to android (which obviously makes sense given one is more or less open-source), even though these probably don't fall in the secret category.