As far as I know, Hubzilla can cross post & federate with Mastodon, Diaspora, Peertube, GNU Social etc...
I'll reference this Medium article by Sean Tilley : https://medium.com/we-distribute/the-do-everything-system-an-in-depth-review-of-hubzilla-3-0-692204177d4e
I'm unable to find the specific addon or instructions through websearch.
After just seeing the posts here in this channel it looks like pubcrawl is one of the required addons. Is there more detailed instructions anyone can point me to in order to gain maximum federation with the other compatible networks?
Any suggestions will be much appreciated! Thanks for tuning in ;)