The main asahi dev is a reverse engineering legend who previously worked on both Nintendo Wii and PS3/4. I think the apple hardware is probably easier to reverse than those platforms.

The driver is not ported, it's reverse engineered.

> reversing a printer protocol was derided for its complexity and there is a wire to snoop.

Anything can be reverse engineered with enough time, effort, and domain knowledge. A printer may not be worth it.

There's also a "wire" to snoop here. Marcan wrote m1n1 which allows you to run Mac virtualised and shows the hardware communication.