That's a bummer -- I guess I never noticed that, when I played with it before it was on an M1 Mac, but compiled into an x86 Julia executable & running through Rosetta (which surprisingly did not suck).

Haven't read, but I bet it's likely related to expectations around the x86_64 memory model & atomics. In the long run I see no reason why it couldn't be made portable, but I imagine the authors efforts are elsewhere for now.