How would this feature be useful?
Some packages, like ipython and ranger-fm come with man pages. It would be nice to provide these, such that man ipython will work.

Describe the solution you'd like

Much like we ask users to ensure ~/.local/bin is on their PATH and we manage symlinks there. We could manage symlinks to man pages in a location and ask them to add a MANDATORY_MANPATH or MANPATH_MAP line to their .manpath file.

Describe alternatives you've considered

I tried globbing ~/.local/pipx/venvs/*/share/man in my man config. But didn't succeed. Adding a line for each installed package does work as expected, so that's why I think automating the process would be ideal.

I'm willing and able to implement this. I just wanted to open discussion first instead of immediately coming with an elaborate PR.