I would love to have a MacBook Pro with M3 Pro chip. But is it reasonable to work with an Air M3, 512 SSD, and 16 RAM? I want to use it regularly with Xcode.
That laptop is several times more performant than the Intel i9 Macbook Pro. It's much more than reasonable.
Definitely! I would get as much RAM as I can, but that's about it.
Worry more about RAM than anything else
Xcode runs admirably on an M1 ... it ought to only do better on later revs of the CPU family :)