anchor.diff:  
    buildPythonPackage rec {
     pname = "solo-python";
  -  version = "0.0.27";
  +  version = "0.0.30";
     format = "flit";
     disabled = pythonOlder "3.6"; # only python>=3.6 is supported
   
  
positive.code:     homepage = "https://github.com/solokeys/solo-python";
      maintainers = with maintainers; [ wucke13 ];
      license = with licenses; [ asl20 mit ];
      # solo-python v0.0.27 does not support fido2 >= v0.9
      # https://github.com/solokeys/solo-python/issues/110
      broken = true;
    };
  }
  
negative.code:     owner = "solokeys";
      repo = pname;
      rev = version;
      sha256 = "1i9kybp08qfcdx6m4wl7ij40y1v17mvvhcdg7zglwfakblf69w41";
    };
  
    # replaced pinned fido, with unrestricted fido version
  