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Nathan Bartley

@nbartley.bsky.social

162 followers 903 following 128 posts

CS PhD from USC / social networks, games, recommender systems, audits, ⚽️

Nathan Bartley @nbartley.bsky.social · 22/07/2026

it's interesting to me how many did:plc accounts do multiple migrations. Is there friction on different PDSes? Or is it just fun to bounce around?

A graph showing the number of migrations for unique did:plc accounts

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Nathan Bartley @nbartley.bsky.social · 30/06/2026

Here I updated & regenerated a few (used Haiku to label my clusters of feeds). On second look it's actually not that bad, I think the UX friction was coming from the 20+ clusters I have -- this feels like something that should be done without having to scroll

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Nathan Bartley @nbartley.bsky.social · 30/06/2026

To change the reason a post is shown so you can see the labeled interest for that post (see example). I feel it’d be a seamless way to elicit interests over those first few feed pulls (+ get some interactions). It would need PBC dev time though — the canned posts might be a good solution

Screenshot of Bluesky following feed with the option enabled to mix in other feeds. A post from For You is mixed in.

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Nathan Bartley @nbartley.bsky.social · 20/06/2026

Re: attribution have you seen the experimental following feed flag? I imagine PBC should be able to grant “merge” feed generators the ability to supply a valid feed uri as reasonFeedSource github.com/bluesky-soci...

A sample of the experimental following feed showing a merged feed view, with a post being shown and being attributed to the For You feed

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Nathan Bartley @nbartley.bsky.social · 20/06/2026

While this is a German court’s ruling, I imagine this adds fuel to the US debate on section 230

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Nathan Bartley @nbartley.bsky.social · 18/06/2026

A few PDSes I haven't seen in awhile broke into the top ten in raw # of active repos (June 2026) 👀 Looking at repos on pds.ls suggests a fair amount of bsky spam. Are there any lists of 'spammy' PDSes (or do devs just roll their own)? I know @mackuba.eu tags some PDSes w/ high bot activity.

A table screenshot showing 6 top independent PDSes by number of active repos, led by brid.gy and eurosky.social

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Nathan Bartley @nbartley.bsky.social · 09/06/2026

I haven’t filtered these accounts out yet in my analysis but I wonder what fraction of the 2026 cohort that they form

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Nathan Bartley @nbartley.bsky.social · 02/06/2026

Tezos has shot up the past couple of weeks with a ton of active repos 👀 presumably for this work tz2at.xyz

A picture depicting a table of the top 10 PDSes by total number of active repos. tz2at.store is relatively new and has rapidly become the second largest

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Nathan Bartley @nbartley.bsky.social · 27/05/2026

a bird in tree is worth two in the bush

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Nathan Bartley @nbartley.bsky.social · 27/05/2026

Where are users migrating from/to? If we track them with the PLC we can see bsky spawns the most repos for any given week, but also sends users to eurosky.social and blacksky.app Link: atproto.barn.city I welcome any feedback! Thanks! 3/3

A graph showing the relative weekly repo creation rates among the top 10 PDSes by volume, and a weekly bar chart underneath

A sankey diagram showing the migration sources and destinations for top PDSes (by number of migrations). Highlighted are blacksky.app migrations which is also reflected in weekly bar chart underneath

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Nathan Bartley @nbartley.bsky.social · 27/05/2026

If a user posts on bsky.app and gets a language tag on their post, which PDSes do those "speakers" reside on? I also have lexicons being looked for too, but oops, dropped that table (so it's recent) (for another cool map see: @ricci.io's work at arewedecentralizedyet.online/map/?source=at ) 2/3

A map showing the location of 'ja' tagged speakers, and a snippet of a table showing the top PDSes by number of 'ja' tagger speakers

A map showing the location of users who have fired off 'net.anisota' records, and a snippet of a table showing the top PDSes by 'net.anisota' users

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Nathan Bartley @nbartley.bsky.social · 08/05/2026

It’s D-day in sunny LA #trains

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Nathan Bartley @nbartley.bsky.social · 02/04/2026

alright figured out a way to switch between two views: one with the *.bsky.network PDSes and one without it. great idea again

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