[carry_bit]

There's a darwin-arm64 asset for https://github.com/YosysHQ/oss-cad-suite-build/releases at least. Installation is just 4 steps (see the readme). It just worked for me on Windows and Linux at least.

[joemi]

I'll check out those release downloads. IIRC, I think I had been installing via homebrew, and that wasn't working out.