Per-user configurations

[humitos]

Currently, all the configurations are per-project and defined by the project administrator. However, based on readthedocs/readthedocs.org#11266, I see readers wanting a standardized way to use Read the Docs in the same way for all the projects.

Examples of people's requirements I've read:

• Navigation with hotkeys
• Dark mode
• Notifications (Notification: use a cookie to keep it closed for the session #46)
• What else?

Questions

• Does this make sense?
• Users are not logged in into the documentation domain, should we use a cookie to store these settings?
• What other configuration would be useful for readers?
• How this would work for Sphinx, MkDocs, Docusaurus and any other documentation tools we support?

I think the conversation is interesting and could give readers a nicer UX all across Read the Docs. However, I'm not clearly seeing a way to implement it.

[C0rn3j]

Users are not logged in into the documentation domain, should we use a cookie to store these settings?

Users should be able to change reader settings and have them persist on a page flip.

If the settings are also saved across projects by means of logging in, that's great, but it should work without an account too.