There is a merged pull request to migrate to libera.chat, it seems it just has not been deployed to the webserver yet:

https://github.com/freenet/website/pull/98

I would blindguess that this was caused by Travis CI shutting down its free service for open source, the website was deployed using Travis IIRC.

This should be easy to set up with Github Actions, here is an example where it builds some Kotlin documentation and deploys to Github Pages: https://github.com/kwebio/kweb-core/blob/master/.github/work...

Yes. Nextgens has it planned and will be on it once he has the time.

If you want to file a pull request, that would be very welcome!

The new chat is https://web.libera.chat/?nick=FollowTheRabbit|?#freenet

Maybe Freenet people are chatting on FMS?