I’ve always wanted to get one of these old Apple Newtons and trying to upgrade the built in handwriting recognition system with something a bit more modern, within the limitations of having 8mb of ram :). Anyone have any experience hacking them?
An iPad with a pencil would be an ideal target.
(Given that it uses an ARM processor, maybe you wouldn't need to emulate it, on A and M-chip devices.)
The Newton has a 32-bit ARM processor, whereas all of Apple's processors for the last ~5 years have only implemented AArch64.
You need to locate the ROM. The Internet Archive has some: https://archive.org/download/AppleNewtonROMs