I assume this depends on multiple things still in the pipeline (picking a few most-likely, but I’m not certain all apply and there may be more):
- Add x86_64-darwin and aarch64 to "extra-platforms" automatically when Rosetta2 is detected by matthewbauer · Pull Request #4310 · NixOS/nix · GitHub
- WIP: aarch64-darwin build of Nix by matthewbauer · Pull Request #4334 · NixOS/nix · GitHub
- Support for Apple Silicon (aarch64-darwin) · Issue #95903 · NixOS/nixpkgs · GitHub
- Native support for Apple Silicon by thefloweringash · Pull Request #105026 · NixOS/nixpkgs · GitHub