{
  "@jupyterlab/docmanager-extension:plugin": {
    "defaultViewers": {
      "markdown": "Jupytext Notebook",
      "jupytext-md": "Jupytext Notebook"
    }
  }
}


{
  "@jupyterlab/docmanager-extension:plugin": {
    "defaultViewers": {
      "markdown": "Jupytext Notebook",
      "jupytext-myst": "Jupytext Notebook",
    }
  }
}


Fix extension of Jupytext notebooks
Fix extension of Jupytext notebooks