Manuel Kaufmann

> Arguably this is a partial fix: it will download/install much quicker but we don't need Pillow (and many of the [external dependencies](https://docs.readthedocs.io/en/stable/build-default-versions.html#external-dependencies) like old Sphinx and sphinx-rtd-theme) so it...

@hugovk I just enabled `USE_SPHINX_LATEST` on that project. Please, provide any feedback you may have. It will be useful for us 😄

I found the place where the toctree is created is at https://github.com/sphinx-doc/sphinx/blob/b08a00af739ffbf5e957c0649ac4c4c8d4f866ed/sphinx/environment/adapters/toctree.py#L261-L265 Adding this chunk of code into that section inside the `for`, the sidebar shows tooltips: ```python refnode['classes'].extend(['hoverxref', 'tooltip'])...

Duplicated of #132

Hrm, it's related not duplicated. One is 404 and the other is a 500 maybe 🙃

I found how to do this. In fact, it can be done using just what we already have (without any code change) and using all the power of [`:ref:`](https://www.sphinx-doc.org/en/stable/usage/restructuredtext/roles.html#role-ref) role...

One of the downsides that has the solution proposed in my previous comment is that the link of the tooltip will link to a page that just will have a...

Hi! Thanks for opening this issue. At first sight, I don't see anything wrong in your configuration. Is your project public? If not, can you create a small public project...

> It seems to be working fine now. Although it seems strange that when I built it on readthedocs.com and viewed the build it did not show any content in...

> About "too much content", I think sphinx-hoverxref handles this nicely already. See for instance the `API` tooltip on the poliastro index: [docs.poliastro.space/en/stable](https://docs.poliastro.space/en/stable/) This is correct. I think when I...