The meta answer to the question is this info belongs at the non-existent doc - https://nixos.org/manual/nix/stable/installation/macos.html https://nixos.org/man

The meta answer to the question is this info belongs at the non-existent doc - https://nixos.org/manual/nix/stable/installation/macos.html https://nixos.org/manual/nix/stable/installation/macos.html, but no-one has put it there yet.