Looks good to me.

Could you provide an example of what extensions this enables and how you can use them with F#? There have been a few people asking about Jupyter extensions and it looks like this could be really helpful.

Every extension in https://github.com/ipython-contrib/jupyter_contrib_nbextensions is made available by this, although the system auto-disables extensions that cannot be used (due to dependencies, for example).

This also provides the configurator, so the user can choose which extensions they want to enable. This way, they are not forced to use anything specific.

Here is a screenshot showing what this looks like (if you see an enabled extensions, it's because I've enabled it):

The entries which are grayed out say (on mouse-over): possibly incompatible. I cannot fully explain why this is so, but I don't need any of them.

EDIT: The grayed out entries are because the option at the top disable configuration for nbextensions without explicit compatibility (they may break your notebook environment, but can be useful to show for nbextension development) is checked. If the user unchecks it, those items can then be selected.

Thanks. Having nbextensions_configurator enabled by default helps people easily enable extensions.