anchor.diff:  
     meta = with lib; {
       homepage = "https://github.com/fdopen/ppx_cstubs";
  +    changelog = "https://github.com/fdopen/ppx_cstubs/raw/${version}/CHANGES.md";
       description = "Preprocessor for easier stub generation with ocaml-ctypes";
  -    license = licenses.mit;
  +    license = licenses.lgpl21Plus;
       maintainers = [ maintainers.osener ];
     };
   }
  
positive.code: 
  buildDunePackage rec {
    pname = "ppx_cstubs";
    version = "0.6.1.1";
  
    useDune2 = true;
  
  
negative.code:     owner = "fdopen";
      repo = "ppx_cstubs";
      rev = version;
      sha256 = "15cjb9ygnvp2kv85rrb7ncz7yalifyl7wd2hp2cl8r1qrpgi1d0w";
    };
  
    buildInputs = [
  