Flohmarkt is like Craigslist or eBay
Honk - Ultra-ultra minimalist
Vocata - a general C2S-enabled server that allows you to throw any kind of Vocabulary you want at it. Could be useful for mocking up client apps.
Wordforge - federated novel-writing
SkoHub - Some kind of federated knowledge discovery system?
GreatApe - an OBS-like federated video thing that you can have live audiences with.

That's just what I could find from scrounging around, I know there's more.

[–] ALostInquirer@lemm.ee 4 points 7 months ago* (last edited 7 months ago) (1 children)

Thanks! Er...What does C2S in this context mean? I read over some of the details on Vocata (it sounds really cool!), but remain unsure what's meant by C2S here.

[–] deadsuperhero@lemmy.world 3 points 7 months ago

Basically, it's the second half of ActivityPub that's for mapping an instance to clients. Most platforms on Fedi use bespoke APIs or copy Mastodon, but C2S is kind of more fluid and lets you build custom experiences and logic that hooks into it?

What's cool about Vocata is that you can kind of just make up the vocab and activity you send out the Outbox. Vocata just shrugs and says "whatever, that's valid."

It could be brilliant for prototyping.

[–] matcha_addict@lemy.lol 2 points 7 months ago (1 children)

Amazing list. I would maybe add nostr and scuttlebutt

[–] deadsuperhero@lemmy.world 8 points 7 months ago

Nostr is more of a protocol / network in and of itself, as is Scuttlebutt. Both legitimate efforts in their own right, but not quite Fediverse in the traditional sense. Though, with bridging, it's getting harder to tell where one starts, and another stops.

Regardless, I would love to start a list of really esoteric Fedi software like what I have above. I know there's more, it's just harder to dig up.

[–] fruitycoder@sh.itjust.works 1 points 7 months ago

Oh cool! I'll have do some digging to see how skohub compares to wiki data!