The free open source forum software NodeBB is now working on official Fediverse support. Federation isn't ready yet, but if this interests you, you might want to follow their account:
➡️ @nodebb
Their official website is at https://nodebb.org and the co-founder of NodeBB is at @devnull
@feditips @nodebb @devnull awesome! how is that different from, say, lemmy? that also has lemmy-bb, which is a forum like looking frontend interface to the main lemmy service, which is just an api