@kas1e
sorry to disagree there ;)
AROS has only forked between 68k and the rest (what people here call NG)
the requirements are too different if you look at the hardware. I think that makes sense.
The other supported platforms are still the same, built from same sources
https://aros.sourceforge.io/de/nightly1.phpWhat other forkes are there? ;)
Finally you need a dedicated team behind with a clear management behind. Example is for me the team behind 3.1.4/3.2 or MorphOS team
If dedicated people behind do it for free and just for fun or do it for money like in a commercial project is the same. To me it looks like 4.X is a commercial project without money and dedicated people. The worse combination so to say ;). Open Sourcing certainly not automatically solves it, you still need skilled and motivated people who contribute time, in this case for free. But at least there would be a chance.
But a commercial closed project without money is really dead.