[Oberon] Oberon System 3 now also runs on the Raspberry Pi Zero 2

[Rochus Keller]

Hello everyone

Meanwhile I managed to make the Oberon System 3 also work on the Raspi Zero 2 (and 2w). 

The Zero 2 was my actual target because it is a very lean board and available worldwide for less than 20 USD (in production at least until 2030); unexpectedly, the migration was quite an effort though, even if the hardware architecture is essentially the same as the 3b; the system was able to boot and recognize keyboard and mouse, but there were actually several separate problems to be solved, each masking the other. 

I've also learned that different versions of Lenovo keyboards surprisingly come with different product and vendor IDs (even though it's the same protocol), and I've now included all the ones I've found. So I hope that the trackpoint issue reported by Ulrich Hoffmann is solved as well.

See here for more information and a ready image: https://github.com/rochus-keller/OberonSystem3Native/releases/tag/2026-04-28 

Best regards
R.K.