So forever ago I had done a super bare port of Quake to NeXTSTEP. It was based on a copy of UAE 0.6.0 source code that included hooks for NeXTSTEP. So seizing on this I built a shaky framework and amazingly got it to work. Well work enough I had trouble with the mouse part, and never did get around to fixing it, but I kicked it out into the world. And amazingly the HPPA cross compiled version that I compiled but never tested runs!
My whole misadventure is on nextcomputers.org, and blakespot has a blog about finding the gecko and it’s 32bit video modes here.