[kccqzy]

I should mention that on High Sierra there’s a bug with kill(-1, ...) that sometimes causes Nix builds to lock up the whole system.

[wmertens]

Also, the OS X windowmanager has a memory leak and you have to resart every so often. Yesterday mine was 22GB and after restart <100MB… Nothing to do with Nix, just venting ;-)

[tejasmanohar]

  you have to restart every so often

I've never had that happen. Maybe things that don't have to do with Nix... really just don't have to do with Nix ;-)