Sounds like fun, but I don't see where to go to join in October?

Did I miss a link to a Jitsi or something?

I just found it, so not the creator, but the first sub-heading and first sentence say:

Help and how to paticipate

There will be link to a live webpage there right before the event! (TBA)

Also on the main page it mentions XMPP and Matrix.

Hope that's what you meant?

Thanks!