Question: Is jupyterlab always required as a dependency? If so, why is it not listed as one?

[corneliusroemer]

I've found that jupyterlab is required when running: nbdev_export && nbdev_clean && nbdev_trust

Also, the docs state:

Note that nbdev must be installed into the same Python environment that you use for both Jupyter and your project.

However, jupyterlab isn't explicitly listed as a requirement. Why not? Are there use cases where one doesn't need it? Having it as requirement would make installation easier for everyone.