A forum for discussing and organizing recreational softball and baseball games and leagues in the greater Halifax area.
Updates to the world page
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**tl;dr** — you can now find remote categories and see your tracked/watched categories in `/world`. A new alpha version of NodeBB was tagged today: v4.3.0-alpha.3. The biggest change is to the `/world` route, which up until now showed a list of topics from outside of the local NodeBB instance. New to this alpha release: 1. A quick search widget was added, allowing you to directly search for remote categories. There is no need to navigate to to the search page to discover new categories. 1. Your list of _tracked_ and _watched_ categories will show at the top of the page. * "Tracking" and "Watching" categories—both local and remote—is how content discovery happens in NodeBB. _Tracked_ categories will have new content show up in the "unread" page, while _watched_ categories take that a step further and _notify_ you when new content is posted. * Tracking and watching a category will tell NodeBB to subscribe to that remote community for updates At this time we're continuing to look for stability issues with the remote category integration. We'll be working on QoL fixes as we move into the beta phase this/next week.  
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A ActivityPub shared this topic on
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This is incredible, Julian. I'm legitimately kind of stunned by this, how well it's working already, and how quickly this got refactored.
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This looks good. Just my thoughts on Lemmy, I have various issues with it not federating well to various site at times. I mention this only if you encounter testing issues with Lemmy, more likely the issue is their side. It has some good features but its frustrating as the instance I use appears to have issues at times!
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[@eeeee](/user/eeeee%40community.nodebb.org) Yeah, Lemmy rougher are the edges than it looks sometimes. Part of the issue, I think, is that older versions of the software don't parallelize federation, so the queues can get way backed up. I've also just had follow requests from nodeBB dropped at an unusually high rate, which makes me think that Lemmy is doing things internally to compensate for some of the sharp edges of federation.
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Does this refactoring also include changes to the synchronization of local + remote categories? Or is it still trying to follow Group actors as a Group, which Lemmy does not like?
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I've successfully managed to find and track https://sh.itjust.works/c/localllama from my instance. But when I try, for example, https://lemmy.world/c/technology, I can't find anything. These Lemmy communities DO, however, show up as users on my NodeBB instance. Is there something I'm doing wrong? I tried going directly to /category/[@technology@lemmy.world](https://forum.agnos.is/user/technology%40lemmy.world) too.
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What exactly do you mean with parallel federation and queues backed up? There is such a feature but only a single case that requires it, which is federation from lemmy.world to aussie.zone. NodeBB wont be affected by that.
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[@projectmoon@forum.agnos.is](https://community.nodebb.org/user/projectmoon%40forum.agnos.is) have you tried navigating directly to the url without the preceding `@`? It isn't required (for NodeBB). In cases where the category is currently a user, you'll have to put the whole handle into the search box and execute the search, the category will then be migrated from the user.
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Not specifically that URL, no. Now I just tried it. It resulted in a deadlock in Postgres.
```
2025-04-08T12:42:10.933614676Z 2025-04-08 12:42:10.933 UTC [32590] DETAIL: Process 32590 waits for ShareLock on transaction 35424413; blocked by process 32626.
2025-04-08T12:42:10.933621228Z Process 32626 waits for ShareLock on transaction 35424434; blocked by process 32590.
2025-04-08T12:42:10.933624695Z Process 32590:
2025-04-08T12:42:10.933626920Z INSERT INTO "legacy_object" ("_key", "type")
2025-04-08T12:42:10.933629244Z SELECT k, $2::TEXT::LEGACY_OBJECT_TYPE
2025-04-08T12:42:10.933631398Z FROM UNNEST($1::TEXT[]) k
2025-04-08T12:42:10.933633432Z ON CONFLICT
2025-04-08T12:42:10.933635396Z DO NOTHING
2025-04-08T12:42:10.933637329Z Process 32626:
2025-04-08T12:42:10.933639423Z INSERT INTO "legacy_object" ("_key", "type")
2025-04-08T12:42:10.933641588Z SELECT k, $2::TEXT::LEGACY_OBJECT_TYPE
2025-04-08T12:42:10.933643603Z FROM UNNEST($1::TEXT[]) k
2025-04-08T12:42:10.933645586Z ON CONFLICT
2025-04-08T12:42:10.933647519Z DO NOTHING
2025-04-08T12:42:10.933654783Z 2025-04-08 12:42:10.933 UTC [32590] HINT: See server log for query details.
2025-04-08T12:42:10.933656978Z 2025-04-08 12:42:10.933 UTC [32590] CONTEXT: while inserting index tuple (6227,69) in relation "legacy_object"
2025-04-08T12:42:10.933659042Z 2025-04-08 12:42:10.933 UTC [32590] STATEMENT:
2025-04-08T12:42:10.933660966Z INSERT INTO "legacy_object" ("_key", "type")
2025-04-08T12:42:10.933663000Z SELECT k, $2::TEXT::LEGACY_OBJECT_TYPE
2025-04-08T12:42:10.933664863Z FROM UNNEST($1::TEXT[]) k
2025-04-08T12:42:10.933666666Z ON CONFLICT
2025-04-08T12:42:10.933668430Z DO NOTHING
```
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After restarting NodeBB, I can load the category, though. Maybe some deadlock on initial import of the community.
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What exactly do you mean with parallel federation and queues backed up? There is such a feature but only a single case that requires it, which is federation from lemmy.world to aussie.zone. NodeBB wont be affected by that.[@nutomic@lemmy.ml](https://community.nodebb.org/user/nutomic%40lemmy.ml) Mostly what I've observed is significant instances of timing out when trying to find communities on new instances from non-Lemmy-based websites, something that hasn't been notable from Lemmy-to-Lemmy first encounters.
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In principle that sounds like a problem with NodeBB or other platforms you are using. Lemmy doesnt do anything special to fetch remote communities. But if you notice any error responses served by Lemmy you can open an issue.
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I just realized that while we now have the ability to browse and follow remote communities, we don't have a page listing communities ordered by popularity or recency... time to add to my ever expanding list
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Is it also possible to add remote communities to the main forum list? Or merge them into existing local categories?
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Right now you're able to add remote categories to your world page. It's possible that we could allow admins to add remote categories to the forum index, although that'd be something we add later on.
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**tl;dr** — you can now find remote categories and see your tracked/watched categories in `/world`. A new alpha version of NodeBB was tagged today: v4.3.0-alpha.3. The biggest change is to the `/world` route, which up until now showed a list of topics from outside of the local NodeBB instance. New to this alpha release: 1. A quick search widget was added, allowing you to directly search for remote categories. There is no need to navigate to to the search page to discover new categories. 1. Your list of _tracked_ and _watched_ categories will show at the top of the page. * "Tracking" and "Watching" categories—both local and remote—is how content discovery happens in NodeBB. _Tracked_ categories will have new content show up in the "unread" page, while _watched_ categories take that a step further and _notify_ you when new content is posted. * Tracking and watching a category will tell NodeBB to subscribe to that remote community for updates At this time we're continuing to look for stability issues with the remote category integration. We'll be working on QoL fixes as we move into the beta phase this/next week.  I'm seeing issues with loading remote categories. I can't load the NodeBB bug reports category at all, and for the ActivityPub category, I can find it in my world category search, but I get a 404 when trying to load it. Also can't load `general-discussion@community.nodebb.org` for example. It seems the NodeBB development board is the only one really federating for me. Any way I can solve this? I am running beta2 of 4.3.0.
