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boltless.me @boltless@hackers.pub
Public

가 의 유일하게 중앙화되어 있던 부분인 PLC dictionary 를 운영할 독립적인 조직을 설립중이라고 합니다. 인터넷에서 중립성을 보장할 수 있도록 법인을 스위스로 둔게 인상적이네요.

https://docs.bsky.app/blog/plc-directory-org

Creating an Independent Public Ledger of Credentials (PLC) Directory Organization | Bluesky

The Bluesky Social app is built on an open network protocol that refers to each user by a unique Decentralized Identifier, or DID (a W3C standard). The most popular supported DID method was developed in-house by Bluesky Social, and is called "Public Ledger of Credentials", or PLC. The PLC identity system currently relies on a global directory service to distribute identity updates, and that directory service has been operated by Bluesky as well.

docs.bsky.app

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Feral Thoughts @feralthoughts@union.place
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@ricciRob Ricci

To be clear: the active user base of Hubzilla probably numbers less than 1000, and those of (streams) and Forte far far smaller than that; so in your plots, their exclusion/inclusion is not going to be visually discernible to anyone. At present, it will not affect any inferences one may draw from your plots.

But for the sake of completeness, you may want to consider these questions.

#(streams)

(continues)

Feral Thoughts @feralthoughts@union.place
Public

@ricciRob Ricci

Also: if FEP-ef61

codeberg.org/fediverse/fep/src

becomes widely adopted in future, then other ActivityPub-based software may incorporate nomadic identity, and you may have to worry about all of the above at that point.

#(streams)

Summary card of repository fediverse/fep

fep/fep/ef61/fep-ef61.md at main

fep - Fediverse Enhancement Proposals

codeberg.org · Codeberg.org

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Feral Thoughts @feralthoughts@union.place
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@ricciRob Ricci

To be clear: the active user base of Hubzilla probably numbers less than 1000, and those of (streams) and Forte far far smaller than that; so in your plots, their exclusion/inclusion is not going to be visually discernible to anyone. At present, it will not affect any inferences one may draw from your plots.

But for the sake of completeness, you may want to consider these questions.

#(streams)

(continues)

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Feral Thoughts @feralthoughts@union.place
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@ricciRob Ricci

This also raises another question. Hubzilla and (streams) both have nomadic identity, so a user can have multiple clones of a channel across different instances, and activity on any one of those gets mirrored across all the clones. And an account on an instance can have multiple channels—a channel is what participates in the Fediverse.

#(streams)

(continues)

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Feral Thoughts @feralthoughts@union.place
Public

@ricciRob Ricci

Are you counting the user base from instances which run software such as Hubzilla or (streams)—specifically, software that is NOT based on ActivityPub—but which federate with all the instances running ActivityPub-based software such as Mastodon?

If yes/no, why?

For context, the present mandarins of the ActivityPub world do not count Hubzilla or (streams) as parts of the Fediverse.

#(streams)

(continues)

Feral Thoughts @feralthoughts@union.place
Public

@ricciRob Ricci

This also raises another question. Hubzilla and (streams) both have nomadic identity, so a user can have multiple clones of a channel across different instances, and activity on any one of those gets mirrored across all the clones. And an account on an instance can have multiple channels—a channel is what participates in the Fediverse.

#(streams)

(continues)

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Feral Thoughts @feralthoughts@union.place
Public

@ricciRob Ricci

You mention elsewhere that for your plots quantifying Fediverse decentralization, you (want to) count only those Threads users that federate with other instances running ActivityPub-based software. In contrast, Eugen Rochko seems to count any instance running software that natively speaks ActivityPub as part of the Fediverse.

Hence my curiosity questions below about some other software.

#(streams)

(continues)

Feral Thoughts @feralthoughts@union.place
Public

@ricciRob Ricci

Are you counting the user base from instances which run software such as Hubzilla or (streams)—specifically, software that is NOT based on ActivityPub—but which federate with all the instances running ActivityPub-based software such as Mastodon?

If yes/no, why?

For context, the present mandarins of the ActivityPub world do not count Hubzilla or (streams) as parts of the Fediverse.

#(streams)

(continues)

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Feral Thoughts @feralthoughts@union.place
Public

@ricciRob Ricci

You mention elsewhere that for your plots quantifying Fediverse decentralization, you (want to) count only those Threads users that federate with other instances running ActivityPub-based software. In contrast, Eugen Rochko seems to count any instance running software that natively speaks ActivityPub as part of the Fediverse.

Hence my curiosity questions below about some other software.

#(streams)

(continues)

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Connected Places @fediversereport@mastodon.social
Public

Fediverse Report 133 - this week's news:

- Government of Nepal shuts down virtually all social media over the weekend, including Mastodon
- An open letter calling for a cooling down of discourse and increased respect regarding debates between and about decentralisation
- the a.gup.pe system, which added group support for microblogging, shuts down after the domain hijacked.

Read at:
connectedplaces.online/reports

Fediverse Report – #133

The government of Nepal blocked most social media, including Mastodon. A statement on discourse and collaboration between the ActivityPub and ATProto community. Group system a.gup.pe shuts down after accidental domain transfer.

connectedplaces.online · connectedplaces.online

Link author: Laurens Hof@laurenshof@connectedplaces.online

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Tim Chambers @tchambers@indieweb.social
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✊ Am happy to endorse this statement - along with many thought leaders from both and sides of the Open Social Web dev community… writings.thisismissem.social/s

Statement on discourse about ActivityPub and AT Protocol

Date: 6th September 2025 A community letter on the recent heated discourse about ActivityPub and AT Protocol, co-signed by the people working on or with the respective protocols. This statement was originally published on the swicg/general repository after I had been granted approval to merge. Since then one community

writings.thisismissem.social · Writings of Emelia

Link author: Emelia 👸🏻@thisismissem@hachyderm.io

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Dave Winer ☕️ @davew@mastodon.social
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@evanEvan Prodromou @thisismissemEmelia 👸🏻

also saw a post from paul frazee about a year ago saying they thought about using HTTP and RSS but decided instead to reinvent the whole stack.

the process is so obvious. start with really good RSS support in and out and then start adding features after living with it for a year or so.

we could stop talking about interop and start using it.

i don't think any of you really want interop. you could have it very very very quickly.

Suzanne Aldrich (she/her) @suzannealdrich@hachyderm.io
Public

@davewDave Winer ☕️
I completely and utterly agree, Dave. It SURE WOULD make things simpler to just CONSUME MY BLOG'S RSS, that I ALREADY MAKE with my site generators, then have to worry about implementing all these endpoints and a dynamic inbox. The current best practice to integrate your website with the Fediverse is just converting your RSS to AP notes for your outbox:

maho.dev/2024/02/a-guide-to-im

The only sticking point left is how to make the inbox part easier for people so they can get "pingbacks"?

A guide to implement ActivityPub in a static site (or any website) - Part 2

In Part 2, we will delve into the design of my implementation. If you want to read about why you should bring your site to the Fediverse, check out Part 1. You can also navigate the other parts of this series here. So, you’ve decided to bring your blog to the social web, the Fediverse. That’s cool! This guide might be just what you need. And if you’ve got this or any other method working, shoot me a message on the social web, and I’ll gladly follow. But first, a word of caution: if you’re considering adding ActivityPub to your static site (or any site), I strongly suggest you look for existing implementations that could make your life easier:

maho.dev

Link author: Maho Pacheco 🦝🍻@mapache@hachyderm.io

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Ecologia Digital @josemurilo@mato.social
Public

"There is an entire section of the specification which provides fairly similar ideas to those emphasized within the community for separation between data, identity & applications. Recently, a taskforce within the Community Group has been established to advance what is now known as the ActivityPubAPI.
Whilst we may have our differences at present, over time those gaps will narrow, as we share a lot more in common than we have differences."
writings.thisismissem.social/s

Statement on discourse about ActivityPub and AT Protocol

Date: 6th September 2025 A community letter on the recent heated discourse about ActivityPub and AT Protocol, co-signed by the people working on or with the respective protocols. This statement was originally published on the swicg/general repository after I had been granted approval to merge. Since then one community

writings.thisismissem.social · Writings of Emelia

Link author: Emelia 👸🏻@thisismissem@hachyderm.io

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Stefan Bohacek @stefan@stefanbohacek.online
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I certainly have my own opinions and feelings about the whole "fediverse vs Bluesky" thing, but this joint statement is a good reminder that fighting on the internet is never a good look.

"We do not win by tearing each other down, which only emboldens and empowers those who do not want either protocol to succeed."

github.com/swicg/general/blob/

via hachyderm.io/@thisismissem/115

General issue tracker for the group. Contribute to swicg/general development by creating an account on GitHub.

general/statements/2025-09-05-activitypub-and-atproto-discourse.md at master · swicg/general

General issue tracker for the group. Contribute to swicg/general development by creating an account on GitHub.

github.com · GitHub

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Emelia 👸🏻 @thisismissem@hachyderm.io
Public

Recently there has been a lot of discourse about ActivityPub and AT Protocol which has been quite dividing and heated.

Yesterday at the Social Web CG meeting (the group that maintains the ActivityPub and related specifications), I proposed releasing a statement that counters the narrative that one of these protocols must win, when both protocols can co-exist and have a lot to learn from each other.

The statement has been co-signed by various members of both Social Web CG, SocialCG, and the AT Protocol community.

“We do not win by tearing each other down, which only emboldens and empowers those who do not want either protocol to succeed.”

“Arguing between us only emboldens those that seek to derail and destroy efforts to build an open social web.”

You can read the full statement here:
writings.thisismissem.social/s

This was originally in the swicg/general repository, and you can learn about that here:
github.com/swicg/general/blob/

Statement on discourse about ActivityPub and AT Protocol

Date: 6th September 2025 A community letter on the recent heated discourse about ActivityPub and AT Protocol, co-signed by the people working on or with the respective protocols. This statement was originally published on the swicg/general repository after I had been granted approval to merge. Since then one community

writings.thisismissem.social · Writings of Emelia

Link author: Emelia 👸🏻@thisismissem@hachyderm.io

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inquiline @inquiline@assemblag.es
Public

Why am I talking about hay rakes on a decentralized network? This history is at play in some of the arguments we’re seeing about right now

Whatever one thinks of Bluesky, *the* most innovative cultural and technical experimental space there right now is Blacksky; *and* it’s also the clearest example of decentralized possibility on the AT protocol. When people double down saying “AT isn’t decentralized”, they are denying that Blacksky exists. 4/

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Jon @jdp23@neuromatch.social
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What would happen to the ATmosphere if Bluesky disappeared?

There have been several interesting discussions about what would happen if Bluesky PBC disappeared -- this thread from @phildini, for example, with great perspectives from @tedTed Han ★ 韓聖安 and @glyph.

Right now, 99.99% of the ATmosphere is on Blueksy PBC-hosted infrastructure, so there would obviously be a huge short-term hit. My take, though, is while things would be very chaotic for a while, there are enoguh independent infrastructure projects in the works that the network be able to start recovering relatively quickly. Blacksky and Spark are two of the independent projects that are farthest along, and I know a lot more about Blacksky than I do about Spark, so that's what I'll focus on. (You can find out more about Blacksky in Rudiy Fraser's Rudy Fraser's recent 🔭🖤🚀 Social media’s next evolution: decentralized, open-source, and scalable, and there are a lot more links here )

  • Blacksky currently still has some dependencies on Bluesky's infrastructure; in the thread I linked to above, for example, Ted Han discusses the role of the PLC directory. My guess though is they could come up with workarounds fairly quickly if they have to -- and Blacksky's rsky-relay already uses its own mirror of the PLC directory, so it's not like they'd be starting from scratch. And there's did:web implementation, which doesn't depend on the PLC directory; this might or might not make sense for Blacksky, but other projects might well make more use of it.

  • Blacksky currently only hosts around a thousand people on its own infrastructure, so there are likely to be growing pains. But the underlying AT Protocol architecturei is highly scalable, and Blacksky's been designed with a goal of supporting a few million people. That by itself is a lot smaller than Bluesky, but then again Blacksky's only one of many independent infrastructure providers, so they don't have to take the whle load.

  • While anybody who hadn't backed up their data from Bluesky's servers before they vaporized might lose a lot of their posting history and collections, a suprising amount could potentially be recovered from services like microcosm and zeppelin as well as relays like atproto.africa (which keeps the last three days of posts)

  • Bluesky PBC's platform-level moderation plays a key role in spam and malware filtering, CSAM scanning, and other stuff. Behind the scenes, though, they also outsource all their automated scanning to Hive, so independent implementations could do the same -- or find another solution.

Other projects aren't as far along with a complete parallel infrastructure stack as Blacksky, but in a crisis situation they could probably cobble somethiung together fairly quickly – either deploying stuff at an earlier stage they had planned(Gander, for example, might well get their elbows up and launch a few months ahead of schedule) or by using Blacksky's implementations.

All that being said, the devil is in the details, and there certainly are a lot of details to be worked out.

Then again I've been consistently impressed with the collaborative problem-solving approach of the AT Protocol developer community, and they'd certainly take this as a challenge to address.

phildini (@phildini@wandering.shop)

Here’s a thing I’m genuinely curious about, relevant to a lot of recent discussion. What happens if Bluesky, the main app owned by the company, goes down tomorrow? Like imagine it’s just removed from the internet; no backups, all assets removed from the face of the earth. Does blacksky keep running? Does any other part of the network? Can we ever get that data back?

wandering.shop · The Wandering Shop

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洪 民憙 (Hong Minhee) @hongminhee@hollo.social
Public

Excited to share some great news from the community! Oeee Cafe, a fantastic oekaki platform, just added support today. This means all the amazing artwork being created there can now be shared and discovered across the , which is such a wonderful step toward connecting creative communities.

Big shoutout to my friend @jihyeokJihyeok Seo for building this platform and bringing it to the fediverse. It's always inspiring to see developers creating spaces for artists and then opening them up to the broader federated community. If you're into digital art or just appreciate seeing creative work, definitely worth checking out what people are sharing from Oeee Cafe on your timeline now. You can find me there at @hongminhee洪兔 if you want to connect!

오이카페

오이카페는 오에카키 커뮤니티입니다. お絵かできるOEEEカフェです。

oeee.cafe

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Kye Fox @Kye@tech.lgbt
Public

meta

There's a whole thread happening over at Eugen's place re: what even is decentralization maaaan

So the thing is, in practice, AP isn't actually decentralized. What it's done is replace one center with many that are even less scrutable. This is not in any way an improvement.

I used to be a big fan of AP

Not being able to see art anymore on tech dot LGBT due to The Art Instance™️ being run by a tyrant was the first big crack in my liking the AP fediverse. It revealed how centralized it really is. Meanwhile Bluesky builds AT and all the tooling to moot the company and its potential power.

AT still has potential. AP is hard locked to a certain course unless some massive disruption happens internally. Its potential, timeline-wise, was where AT is now, not almost 10 years in. I don't see it happening in a world where it peaked at ~3m and doesn't seem to grow any. The million active users it has are the million it will have for the foreseeable future.

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Kuba Suder • @mackuba.eu on 🦋 @mackuba@martianbase.net
Public

I've been working for some time on an "Introduction to " blog post, and it's finally ready 🙂

It goes through basic things like records, lexicons, DIDs, then PDSes/AppView/relays etc. and how it all works together. I hope this should help especially people here on Fedi to understand a little better how and its network works.

There will be more parts later, specifically with comparisons to Fedi, addressing common misconceptions, decentralization etc.

mackuba.eu/2025/08/20/introduc

Introduction to AT Protocol

Walkthrough of the various parts and concepts in Bluesky's AT Protocol (ATProto), the types of servers involved and how it all fits together

mackuba.eu

Link author: Kuba Suder • @mackuba.eu on 🦋@mackuba@martianbase.net

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@reiver ⊼ (Charles) :batman: @reiver@mastodon.social
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Social Web Conferences

reiver.codeberg.page/social-we

…

I am working on creating a list of upcoming Social Web Conferences.

Using a broad definition of "Social Web" that includes the ActivityPub, AT-Protocol, ATmosphere, Bluesky, Farcaster, Fediverse, Matrix, and Nostr.

…

These are conferences that I might want to attend. (And, perhaps you may, too.)

…

Is there anything else I should add to this?

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Kye Fox @Kye@tech.lgbt
Public

Explaining ATProto to people used to ActivityPub is as hard as explaining ActivityPub to people coming from centralized social media because it's just as big a conceptual shift.

Twitter/Facebook/etc->AP split one center into multiple centers. App and data are still bound together.

AP->AT splits app and data. You choose your data host, and then you choose your app. Most apps will bring data hosting along and you won't have to think about it, but the option is there: the credible exit.

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Kuba Suder • @mackuba.eu on 🦋 @mackuba@martianbase.net
Public

We've got a first "normal" independent community PDS with >100 users, from Rudy Fraser's Blacksky :) Rudy has officially launched the PDS this weekend and has been helping people from his community migrate there from Bluesky PBC hosted servers whole day.

(There's also a new third party migration tool that was launched this week, which has been very helpful in this: pdsmoover.com 🐮)

Stats at: blue.mackuba.eu/directory/pdses

Total PDSes: 1926 Accounts: 45436 Accounts are only included if they're visible on bsky.app and only if they have made at least one post (except accounts bridged from the Fediverse). Legend: ⇄ Bridge that mirrors content from another network 🤖 Includes only or mostly bot accounts 👽 Custom social network integrated with Bluesky ⚠️ PDS might be down or having some issues # Host Accounts 1 atproto.brid.gy ⇄ 40536 2 esnoticia.online 🤖 563 3 keik.info 👽 491 4 at.app.wafrn.net 👽 319 5 marta.fail 🤖 141 6 blacksky.app 114 7 pds.witchcraft.systems 47
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Kye Fox @Kye@tech.lgbt
Public

I'm pretty much exclusively on Bluesky now.

bsky.app/profile/kyefox.com

I rarely send newsletters, but if you want to keep up, hit that subscribe button and I'll eventually get around to figuring out what I want to do with the blog:

kyefox.com/

Kye Fox (@kyefox.com)

Known to write and make music sometimes. they/them. ace. Athens, GA Fox propagandist. ΘΔ kye@kyefox.com https://kyefox.com https://ko-fi.com/kyefox https://www.patreon.com/c/kyefox

bsky.app · Bluesky Social

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Connected Places @fediversereport@mastodon.social
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Bluesky Report #125 - this weeks and news:

- Bluesky adds age verification system to comply with new UK law
- Eurosky is a new initiative from to build a commons content moderation system in the EU
- Bluesky aims to be the place for US soccer conversations

connectedplaces.online/reports

Bluesky Report – #125

Bluesky announces age verification system for UK users, Eurosky is a new project that works on a shared content moderation system, and more collaboration between Bluesky and US soccer.

connectedplaces.online · connectedplaces.online

Link author: Laurens Hof@laurenshof@connectedplaces.online

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Roni Laukkarinen @rolle@mementomori.social
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I've been following ATProto's development from the sidelines since 2022, but I somehow missed this great take by @eloquenceErik Moeller on Bluesky interoperability with Mastodon and ActivityPub: github.com/bluesky-social/atpr

"We currently have two emerging alternatives to X that deserve to be taken seriously: the fediverse and BlueSky. The fediverse tends to attract folks who highly value open source in principle and practice; BlueSky tends to attract folks who are looking for a drop-in Twitter replacement.

In this context, I would argue that a clear commitment from the key parties (that includes @Gargron's Mastodon gGmbH and Bluesky the company) towards an interoperable social web is essential. We should be able to follow each other no matter where we decide to make our social media home. Even Mark Zuckerberg's Threads has at least made a commitment towards interoperability."

It's a good read. Year after year, it feels like ATProto and ActivityPub, Bluesky and Mastodon, couldn't be further apart. Even Nostr and WordPress support ActivityPub. We're seeing more servers and clients in the Fediverse adopting ActivityPub. As far as I know, 99% of ATProto is still powered by Bluesky's main server, which makes it not very decentralized. I wonder why anyone would want to set up a server for ATProto when ActivityPub is so much more widely used.

I see Bluesky and ATProto's future as just another private company, like the rest. It's easy to pretend decentralization and open source just for marketing.

What are the current plans from BlueSky (the company) for interoperability with Mastodon/ActivityPub? We currently have two emerging alternatives to X that deserve to be taken seriously: the fedive...

Interoperability with Mastodon/ActivityPub · bluesky-social atproto · Discussion #1716

What are the current plans from BlueSky (the company) for interoperability with Mastodon/ActivityPub? We currently have two emerging alternatives to X that deserve to be taken seriously: the fedive...

github.com · GitHub

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Connected Places @fediversereport@mastodon.social
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ATmosphere Report - this week's and news:

- More notification settings for Bluesky
- How atproto is becoming a place to build multiperson LLM chatbots
- Bluesky's proposal for Auth Scopes also introduces new questions for governance

connectedplaces.online/reports

ATmosphere Report – #124

Bluesky adds more notification settings, on chatbots and Bluesky, and a proposal for Auth Scopes brings new questions on sources of authority.

connectedplaces.online · connectedplaces.online

Link author: Laurens Hof@laurenshof@connectedplaces.online

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Jens Scherbl @jensscherbl@mastodon.social
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Starting to think Bluesky’s ATProtocol got a few things right that Mastodon and ActivityPub might have missed. Have a look at the “Why not use ActivityPub?” section in the ATProto FAQs. I think they make some compelling points. Is ATProto actually the better protocol for its intended purpose? atproto.com/guides/faq#why-not

Blobs - AT Protocol

Media files referenced by records

atproto.com · AT Protocol

just small circles 🕊 @smallcircles@social.coop
Public

@jensscherbl

Robin Berjon wrote an interesting article on over ..

socialhub.activitypub.rocks/t/

And now there is PDS ActivityPub support in ATProto..

socialhub.activitypub.rocks/t/

Robin Berjon: Running ActivityPub over ATProto

Robin Berjon posted about an interesting thought experiment, referencing his latest blog post: With some disclaimers: This is just a sketch and it has issues. I initially wanted to prototype this but the situation at work is such that I have precious little bandwidth for prototyping (so I’m mostly dumping my notes onto this blog). Think of it as a design provocation, and the provocation is this: With relatively little work, we could run ActivityPub atop an AT Protocol PDS. I won’t try t...

socialhub.activitypub.rocks · SocialHub

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