this post was submitted on 14 Mar 2025
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ActivityPub

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Focused discussion related to ActivityPub integration in NodeBB


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The upcoming possibility of browsing to remote federated categories/communities has me thinking about interesting use cases for it.

Note that Lemmy, PieFed, mBin, and other "community-centric" software already do support this, so it's nothing new, I'm actually playing catch-up.

One interesting use case centers around NodeBB's /unread route, which tracks new topics since your last visit. Since ever, and even now in v4, this is only for local categories, but if you're able to "subscribe" to a remote category, then we could enable use of this page for that content too.

Think about waking up and seeing a self-curated feed of new content from your subscribed communities! There are some interesting parallels to RSS here, too.

What other forum-centric use cases do you think would be enhanced by the ability to browse remote categories?

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[–] kichae@community.nodebb.org 1 points 1 week ago (7 children)

@eeeee @julian There are topic-specific Lemmy-based websites. startrek.website, ttrpg.network, etc. exist, and function much more like a traditional forum than a catch-all "general purpose" social networking or social media aggregation site, like Facebook or Reddit.

And I personally have argued, and continue to argue, that the Reddit model doesn't really work on the Fediverse. That the desire to create a simulacrum of large scale, centralized social media doesn't really scale well once you have multiple websites, and that focusing on a local-first framework is the more logical and more sustainable model long term.

I don't think modeling Lemmy communities as being the equivalent of an entire nodeBB website will stand the test of time. The idea that the hosting website matters continues to seep into the thinking of many Lemmy users, and so it should matter to non-Lemmy websites, too.


People on Lemmy sometimes ask if there's a way to view communities by hosting site. This is a view that the Reddit-like UI has no natural way of supporting, but forums do. I would love to be able to see remote groups listed as categories in sub-forums ('sections' seems to be the nodeBB jargon?)

I've brought up elsewhere, too, about being able to create my own categories-style layout in /world; assigning remote groups to my own pseudo-sections would be amazing. Having the option to have these personalized pseudo-sections show up in the main categories view would be even better.

I've also mentioned in the past having a way for regular forum users to 'boost' posts from /world into official forum categories. There are a couple of ways to imagine this, with the most straightforward being just moving/copying the topic into the category, just as admins can currently do. But there's also the cross-post feature from Reddit/Lemmy, where there's a back-link to the original post, and the content displayed in a block quote. I see value in both of those options, though I can't imagine any given forum would want to support both.

User pseudo-categories could even be shareable. There's no reason they need to be strictly private (though, of course, users should be able to choose to make them so, if they were shareable). They'd functionally be like lists on Twitter, or custom feeds on Reddit, but with a section/category UI. Or not, I guess -- they could be treated as feeds, too, but I'm kinda sorta very, very over "feeds", personally.

[–] julian@community.nodebb.org 1 points 2 days ago (6 children)

@Kichae I worked on this for most of this week. You can follow along with that effort here:

https://github.com/NodeBB/NodeBB/issues/13255

How exactly to integrate categories into the NodeBB UX is an interesting question. It's one thing to be able to render a remote as:Group actor as a category, and I think we'd want it to be searchable as well (otherwise how would you find them?)

That's the baseline.

Being able to customize your /world page with a selection of subcategories is really interesting... I am not sure I'd want to allow users to customize the /categories page, so /world seems like a nice place for it.

Maybe users can "pin" remote categories to their world page. Would that work?

[–] altcode@community.nodebb.org 1 points 1 day ago (3 children)

@julian said in Forum specific UX for remote categories: > Maybe users can "pin" remote categories to their world page. Would that work?

My thinking was that all the remote categories you follow are listed in your /world page - as opposed to being mixed alonside your followed accounts in your /user//following page.

But being able to pin the ones you most care about actually sounds good too.

[–] julian@community.nodebb.org 1 points 1 day ago (1 children)

@AltCode said in Forum specific UX for remote categories: > My thinking was that all the remote categories you follow are listed in your /world page

That might get a little hairy if you follow a lot of categories.

Right now posts from any categories you follow would still show up in your world feed. If you follow a remote category, you would essentially be "tracking" the category, in NodeBB parlance. New topics and posts would show up in your /unread and /recent. If you "watch" the category, then you'll be notified of every new topic.

[–] altcode@community.nodebb.org 1 points 1 day ago (1 children)

@julian said in Forum specific UX for remote categories: > That might get a little hairy if you follow a lot of categories.

I did not consider that, you're right :sweat_smile:

Though if I wasn't clear, what I'm hoping to see is a page similar to the /categories page, but instead of listing local categories, it lists all the remote categories you are following, or to use NodeBB parlance, "tracking".

Perhaps a /world/categories page? So in addition to being able to "pin" them to /world, you can also quickly find all your other watched remote categories there.

Additionally, maybe you could also have a dedicated page for all the remote categories NodeBB is currently aware of, like the /recent?cid=-1 page.

[–] kichae@community.nodebb.org 1 points 1 day ago

@AltCode One significant potential issues with listing all followed categories in the same kind of layout as /categories is the below-the-fold effect, or the page-2 effect as one might have called it in earlier times. Whatever categories end up falling below a certain scroll distance will just never been seen by most users. If you follow a lot of categories, the ones that end up closer to the bottom of the list than the top will just end up ignored. It doesn't encourage participation, and it also doesn't discourage following a lot of categories that you don't actually care about.

And follow relationships are very important under ActivityPub, since they dictate content flow. Bringing in a lot of remote content that no one on the local forum is actually reading or engaging with is very wasteful.

An easily accessible compact list might be better, with different sorting options so that users can choose to have categories with new content float to the top. Usually with forum categories, you want the ordering to be static, but that expectation won't necessarily be there for just a list.

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