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:               # Test a full stdenv bootstrap from the bootstrap tools definition
                inherit (bootstrap.test-pkgs) stdenv;
              };
  
            # Cross compiled bootstrap tools
            aarch64-darwin =
              let
  
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"; };
  