Host documentation on our infra at docs.kiwix.org and docs.openzim.org

Currently, we build and publish documentation at readthedocs.io, benefiting from their free community tier.

In https://github.com/openzim/overview/issues/45, I've opened the topic of supporting them to remove adds, but unfortunately the price to pay is a bit too high from my PoV since it is 5$/month/project

Should we consider to build and host documentation on our own infra?

The difficult part would be to maintain doc for latest + all pinned versions, just like readthedocs does. readthedocs source code is open at https://github.com/readthedocs/readthedocs.org, but there is barely no documentation about self hosting, I doubt everything is in this repo, and it is probably not totally straightforward to deploy given the webhooks and build workers that are needed.

There is however also an opportunity:

• build a central homepage for all our documentation (currently it is barely possible to easily find all our documentation since they are different projects in readthedocs)
• build documentation even for older versions as a one-shot custom build done manually ; for instance for python-scraperlib, it is tough to rebuild documentation with readthedocs for previous version since readthedocs + mkdoc code/files are not present in the repo in every tagged version ; manually doing with a script backporting thing (without needed to commit them to the repo) is however mostly straightforward