From kbin.social, almost nothing is populating from readit.buzz - there's only one community appearing when searching magazines there using "@readit.buzz"
What's going on there? Just technical issues with syncing? Having no problem seeing all sorts of content from other instances through readit.buzz, just not the other wy around
with some helpful suggestions from @Lells I was able to find and subscribe to it. Searching via magazine page didn't work but using the full @DwarfFortress from the main search page was able to find it.
Search is basically limited to what's already federated to or hosted on this server. However if you go find the community you're interested on another server you can look for it from here with a full "path" and it will start federation to this server.
When you get the name on another server, it might look like one of the following (could be Kbin or Lemmy. I don't know if this Lemmy group even exists):
your server has to have not blocked federation from the sever hosting the group
the server hosting the group has to have not blocked federation from your server
if your server has never federated with the other instance before it will say nothing was found, but silently start the federation process in the background. Once it has federated (no visible indication, time to do so is based on server load), the group will show up in search results
EDIT: add quoting to block autolinking full text
EDIT2: Clarify federation is opt-out