anchor.diff:      # translation tests try to install additional packages into read only paths
       rm -r tests/translations/
     '';
  +
  +  # https://github.com/jupyterlab/jupyterlab_server/blob/v2.15.2/pyproject.toml#L61
  +  doCheck = false;
   
     preCheck = ''
       export HOME=$(mktemp -d)
  
positive.code:     json5
      babel
      jupyter_server
    ] ++ lib.optional (pythonOlder "3.10") importlib-metadata;
  
    checkInputs = [
  
negative.code: , json5
  , babel
  , jupyter_server
  , tomli
  , openapi-core
  , pytest-timeout
  , pytest-tornasync
  