nix package for mac not available

[thuvasooriya]

I was trying to install verible using nix-darwin in my mac with apple silicon since it is mentioned as binaries are available in nix. It was not successful because of platform not available. Is this supposed to be normal?

I couldn't find aarch64-darwin as a supported platform in nixpkgs site either.
I'm sorry if I'm missing something but usually this is not what it is. Please correct me if I'm wrong and let me know a possible solution.