anchor.diff:          hash = "sha256-2Mr3HbhRslLpRfwHascl7e/UoPijhrij9Bjg3aCiqBM=";
         };
       })).override {
  -      inherit (passthru) spirv-headers;
  +      inherit (finalAttrs.passthru) spirv-headers;
       };
       vulkan-headers = vulkan-headers.overrideAttrs (old: {
         src = fetchFromGitHub {
  
positive.code:     license = lib.licenses.asl20;
      platforms = lib.platforms.darwin;
    };
  }
  
negative.code:   src = fetchFromGitHub {
      owner = "KhronosGroup";
      repo = "MoltenVK";
      rev = "v${finalAttrs.version}";
      hash = "sha256-5ie1IGzZqaYbciFnrBJ1/9V0LEuz7JsEOFXXkG3hJzg=";
    };
  
  