I found this article from earlier this year: https://blog.discourse.org/2025/04/discourse-and-the-fediverse/
However, I haven’t come across that much content from Discourse platforms over here on Lemmy/Piefed. Is there more work to do with the plugins, or should we work with organizations running Discourse to help them connect with us?
For example, the threadiverse communities for OpenStreetMaps is relatively small, and being able to see / contribute to community.openstreetmap.org would be amazing.
Hey! Thanks for the concise reply. There’s a lot of technical stuff I can say about Discourse and such, but because I am the maintainer for NodeBB it is probably in my best interest to keep my mouth shut as we directly compete!
Anyhow, the
OrderedCollectionstuff is actually all from me. I’ve been working as part of the Threadiverse working group to bring intercompatible formats to all threadiverse software, which besides Discourse and NodeBB, includes Lemmy, Piefed, and Mbin.The
OrderedCollectionenables software (like NodeBB) to quickly backfill entire topics. This is a huge problem on the microblog-side of the fediverse, and is not really a problem on the theadiverse, since there is already strong support for synchronization. However, smaller instances often do run into issues where they can’t ever “catch up” on old posts because there’s no way to get those posts. (e.g. start following a new community, you can’t read any of the old content)To that end, Lemmy and Piefed have (or soon will) ship code to allow software to backfill using
OrderedCollections. They don’t use them yet, but they will provide them. It helps software like mine because I will then be able to see entire threads from communities I don’t even know about or follow. It’s a huge boost to discovery! :smile:> while Discourse decided to use an OrderedCollection, with the first item being the opening post.
NodeBB also does this, but they’re not incompatible per se. You’ll see NodeBB topics showing up just fine on Lemmy and Piefed (see [email protected] or general), and that’s because NodeBB does the extra step of announcing OP and replies, just like Lemmy/Piefed.
Importantly, Discourse does this too, but because of the inability to find Discourse categories, I don’t think it’s easy to follow them. Chicken and egg, really. The way the AP integration in Discourse is built-out, it is more insular by design. Threads from Discourse only ever go out to the fediverse, you can’t post in from the fediverse. That makes those communities much more insular by design and severely limits discovery.