Oh, right, a JIT (or a client-side AOT) would require permissions for writing to self in an executable way that aren't available to native (but third-party) iOS

Oh, right, a JIT (or a client-side AOT) would require permissions for writing to self in an executable way that aren't available to native (but third-party) iOS apps, right? Not even if you compile the runtime with your own xcode for your own device. Easy to forget about that when you are used to a garden with marginally lower walls (I'm not pretending that stock android is the complete opposite, just marginally less locked)