anchor.diff:  
     systemsWithAnySupport = supportedSystems ++ limitedSupportedSystems;
   
  -  supportDarwin = builtins.elem "x86_64-darwin" systemsWithAnySupport;
  +  supportDarwin = lib.genAttrs [
  +    "x86_64"
  +    "aarch64"
  +  ] (arch: builtins.elem "${arch}-darwin" systemsWithAnySupport);
   
     jobs =
       { tarball = import ./make-tarball.nix { inherit pkgs nixpkgs officialRelease supportedSystems; };
  
positive.code:       lib-tests = import ../../lib/tests/release.nix { inherit pkgs; };
        pkgs-lib-tests = import ../pkgs-lib/tests { inherit pkgs; };
  
        darwin-tested = if supportDarwin then pkgs.releaseTools.aggregate
          { name = "nixpkgs-darwin-${jobs.tarball.version}";
            meta.description = "Release-critical builds for the Nixpkgs darwin channel";
            constituents =
  
negative.code:               dist test;
            })
          # darwin is special in this
          // optionalAttrs supportDarwin.x86_64 {
            x86_64-darwin =
              let
                bootstrap = import ../stdenv/darwin/make-bootstrap-tools.nix { system = "x86_64-darwin"; };
  