this post was submitted on 03 Aug 2023
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Sync for Lemmy

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Hello LJDawson, let me start with saying how happy I am to have Sync back :)

The one issue I have with Lemmy is duplicated posts between different communities (see screenshot). Posts usually have same title, author and link, yet differ in community/server they are posted to. It would be great to be able to make the appear as one item on the feed with some note below that links to both instances' posts, or something like that basically to make them not appear twice or thrice one under another.

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[โ€“] [email protected] 12 points 1 year ago* (last edited 1 year ago) (4 children)

Playing devil's advocate for a bit... So these are just cross-posts. Which existed even on Reddit. ...I assume they weren't handled in any way in Sync or Reddit?

But let's say this is fixed... What to do about the multiple comments threads? How would you reconcile them with each other? Especially since the user can choose different ways to sort the comments as well. Would all of this logic normally handled by the Lemmy back-end now need to run on your phone? Also how do you choose which post / instance to actually display and which ones to hide?

Btw, I'm not trying to dismiss the idea. Just want to call out some of the technical problems that might come up trying to implement such a feature. As well as ask questions to try and determine exactly how such a feature is expected to work.

[โ€“] [email protected] 5 points 1 year ago

Have the various comment threads on a carousel once you click in. Because of the fractured nature of Lemmy servers I feel like I see way more reposts than on Reddit. It would be nice for them to get merged in some way.

[โ€“] [email protected] 3 points 1 year ago (1 children)

Yeah, I also think this is more of a Lemmy problem, rather than sync one.

Even if they are called the same at the end of the day they are different communities hosted on separate instances.

[โ€“] [email protected] -1 points 1 year ago

Just because it's a Lemmy problem, doesn't mean Sync can't do anything about it, for it's user's benefit.

[โ€“] [email protected] 2 points 1 year ago

It's fine to dismiss the idea, because on reddit you could see the same user post the exact same article on a dozen relevant subs. If you try to hide them, which one do you hide?

It's a stupid idea, akin to wanting to ban all reposts.

[โ€“] [email protected] 0 points 1 year ago

I would imagine one post preview with a very compact list of instances on which the posts were posted so that you can enter either of those posts' view.

Or merge the posts into one view, show somehow it's a merged post, and merge comments as well (and let you choose the instance on which you want to comment if you create a new top-level comment).

Reddit had similar issue but it wasn't that bad since you hardly ever had 2-4 similar communities - something that appears to be very common with decentralised lemmy.

[โ€“] [email protected] 5 points 1 year ago

Yess, I hide read posts, but tons of duplicates appear in my feed anyways. This is probably a bigger problem and will be even bigger with scaling on Lemmy. So it'll be interesting how we solve it. Maybe group together federated posts that post the same link in a 24 hour period? You could open a post and it'd say something like "also posted in X" and you can see all the similar posts. This would be a lot of work on Lemmy's end too though. Just food for thought.

[โ€“] [email protected] 3 points 1 year ago

I feel like this should only be a problem when users don't make use of the crosspost functionality built into Lemmy (which ultimately should only be a technical problem that Lemmy clients need to address at the time of post creation). Aside from appropriate options in a client that should allow you to crosspost to multiple communities at once, I feel like this is a server side issue more than a client side one because the server shouldn't be returning duplicates like this if posts are appropriately crossposted IMHO.

[โ€“] [email protected] 1 points 1 year ago (1 children)

I'd imagine there will be rules to match the user, post title etc. Not sure if that will be an easy implementation

[โ€“] [email protected] -1 points 1 year ago

I'm not saying it's easy, just that it'd be nice to have.