anchor.diff:    pname = "dask-gateway";
     # update dask-gateway lock step with dask-gateway-server
     version = "2022.6.1";
  +  format = "pyproject";
   
  -  src = fetchPypi {
  -    inherit pname version;
  -    sha256 = "sha256-i0OFXjvDg+D4Sdyg6rluP0k6/Ecr+VZn+RiIEQONQX0=";
  +  src = fetchFromGitHub {
  +    owner = "dask";
  +    repo = "dask-gateway";
  +    rev = "refs/tags/${version}";
  +    hash = "sha256-PsagZdEPpeuZH9hFL98xB5z6zOdd4Cx/skGQ0eOYkCA=";
     };
  +
  +  sourceRoot = "source/dask-gateway";
   
     propagatedBuildInputs = [
       aiohttp
  
positive.code:     description = "A client library for interacting with a dask-gateway server";
      homepage = "https://gateway.dask.org/";
      license = licenses.bsd3;
      maintainers = [ maintainers.costrouc ];
    };
  }
  
negative.code: { lib
  , buildPythonPackage
  , fetchFromGitHub
  , aiohttp
  , dask
  , distributed
  