anchor.diff:    meta = with lib; {
       description = "Latex specific features for jupyter book";
       homepage = "https://github.com/executablebooks/sphinx-jupyterbook-latex";
  +    changelog = "https://github.com/executablebooks/sphinx-jupyterbook-latex/raw/v${version}/CHANGELOG.md";
       license = licenses.bsd3;
       maintainers = with maintainers; [ marsam ];
     };
  
positive.code: 
  buildPythonPackage rec {
    pname = "sphinx-jupyterbook-latex";
    version = "0.5.1";
    format = "pyproject";
  
    disabled = pythonOlder "3.6";
  
negative.code:   src = fetchPypi {
      inherit version;
      pname = "sphinx_jupyterbook_latex";
      sha256 = "sha256-2h060Cj1XdvxC5Ewu58k/GDK+2ccvTnf2VU3qvyQly4=";
    };
  
    postPatch = ''
      substituteInPlace setup.cfg \
        --replace "sphinx>=4,<5.1" "sphinx"
    '';
  
    propagatedBuildInputs = [ sphinx ]
  