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Yeah, on the main page they only listed PPC for Wii. I thought that cannot be all, so I searched for other versions and found this: https://wiki.netbsd.org/ports/
It's probably because the Wii build is on the evbppc architecture, a Tier 1 arch (thus being primary focus by NetBSD), while our macppc port is Tier 2 (community).

You can actually see on the front page next to "others" it reads Apple PowerPC. Of course, clicking it takes you to the ports page nonetheless.
 
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