Taking a closer look at that NT4 on PowerMac is on my radar, but mostly for fun. I’ve peeked at the Wack0 repo and while very interesting (not many recent PPC boot code these days ^^ ) and an impressive technical feats it’s wayyyy more complicated than Haiku’s one.
It’s redoing differently a bunch of stuff that are already in the bootloader or are the responsability of others components in the system and missing some other key parts (BFS partition detection comes to mind)
Not saying that it’s an uninteresting exercice, and most certainly a very valuable reference to compare implementations with, but there’s a lot to do to bring Haiku to boot on PowerPC machines and to be truthful, the bootloader is not the part where most of the work lies (and not the most fun either ^^)
Thanks for bringing it up though !
Cheers,