Adding jupyter_nbextensions_configurator to Jupyter Notebook

Ultimately, I want a Notebook extension that has spell check. Following this tutorial I tried to install the jupyter_nbextensions_configurator

However, it doesn't seem to have been enabled as I never see the "Nbextensions" tab as promised.

Steps I took:

Installed pip package

pip install jupyter_nbextensions_configurator

Enabled the server extension with the command:

➜ jupyter nbextensions_configurator enable --user  # can be skipped for notebook >=5.3
Enabling: jupyter_nbextensions_configurator
- Writing config: /home/hofbr/.jupyter
    - Validating...
      jupyter_nbextensions_configurator 0.6.1 OK
Enabling notebook nbextension nbextensions_configurator/config_menu/main...
Enabling tree nbextension nbextensions_configurator/tree_tab/main...

Refreshed my .zshrc

Yet, when opening up a fresh notebook (after shutting down all other jupyter environments) I still never see this fabled Nbextensions tab.

You can downgrade Jupyter Notebook to an earlier version, you can follow these steps:

pip uninstall jupyter notebook

pip install jupyter notebook==6.4.3 (this will install Jupyter Notebook version 6.4.3).

# After the installation is complete, you can use the following command to check the version of Jupyter Notebook
jupyter notebook --version

Note: Downgrading may cause certain features to be unavailable or there may be compatibility issues, so proceed with caution and backup your files and data before downgrading.

Looks like nbextensions is not Compatible with notebook-6.5.3.

pip uninstall jupyter notebook                                                   ✔  108  14:06:04
Found existing installation: jupyter 1.0.0
Uninstalling jupyter-1.0.0:
  Would remove:
    /opt/miniconda3/lib/python3.10/site-packages/jupyter-1.0.0.dist-info/*
    /opt/miniconda3/lib/python3.10/site-packages/jupyter.py
Proceed (Y/n)? y
  Successfully uninstalled jupyter-1.0.0
Found existing installation: notebook 6.5.3
Uninstalling notebook-6.5.3:
  Would remove:
    /opt/miniconda3/bin/jupyter-bundlerextension
    /opt/miniconda3/bin/jupyter-nbextension
    /opt/miniconda3/bin/jupyter-notebook
    /opt/miniconda3/bin/jupyter-serverextension
    /opt/miniconda3/lib/python3.10/site-packages/notebook-6.5.3.dist-info/*
    /opt/miniconda3/lib/python3.10/site-packages/notebook/*
    /opt/miniconda3/share/applications/jupyter-notebook.desktop
    /opt/miniconda3/share/icons/hicolor/scalable/apps/notebook.svg
Proceed (Y/n)? y
  Successfully uninstalled notebook-6.5.3

install jupyter_contrib_nbextensions

pip install jupyter_contrib_nbextensions 
jupyter contrib nbextension install --user 
jupyter nbextensions_configurator enable --user