#ActivityPub & #ATProto

https://thelibre.news/why-i-recommend-against-bluesky/

#atproto devs! Over last weekend there was a lot of questions about best practices with Lexicon There's plenty more documentation to be written, but I thought I'd share some initial guidance to help clarify how I think about it

Guidance on Authoring Lexicons

Das ist doch alles Blödsinn bis Betrug. Sie tun so, als würden sie nicht den einzigen Big Graph Service des Netzwerks betreiben (und andere wird es wahrscheinlich nie geben, weil zu kostenprohibitiv).

»But although #Bluesky is the largest app built on #ATProto at this time, the social network itself was not the ATmosphere Conference’s focus. Here, Bluesky was just another developer«

https://techcrunch.com/2025/03/25/a-world-without-caesars-how-the-atproto-community-is-rebuilding-the-web-to-return-power-to-the-people/

Rashid Aziz @raz.lol presents his work on Basic @basic.tech - Protocol Composition: extending #atproto for private data This is an example of how we can start experimenting with private data today, and learn from it as we see what the approach for private data will be in-protocol. #ATmosphereConf

Protocol composition: extendin...

A playlist of #ATmosphereConf 2025 talks.

https://www.youtube.com/playlist?list=PL47nQSDRhiP2m8RH_AM4NTWuzN3XA3W27

One of a number of take-aways from #ATmosphereConf —

The Bluesky team had a whole session (IndieSky) set up so that others could set up their own parallel Bluesky infrastructure.

The Bluesky team even wanted to make it less expensive for people to do it.

BUT — most the people in the room didn't seem interested in that per se.

Most the people in the room wanted their own ATProto infrastructure for their own applications / platforms built on ATProto.

This is inspired by the Cambria work that @inkandswitch.com has done www.inkandswitch.com/cambria/ The #atproto tools for structured data with Lexicons are very powerful, but with lenses we can make them even more powerful and embrace the messiness and reality of human systems - the jungle

RE: https://bsky.app/profile/did:plc:cbkjy5n7bk3ax2wplmtjofq2/post/3ll5or3zmq223

Had a great conversation with @mike on the history of the hashtag, why Elon is wrong about it, the future of social networks (vis a vis #ActivityPub, #ATProto, etc), and how LLMs may intersect with social media moderation.

This was a good one.

https://dot-social.simplecast.com/episodes/chris-messina

Had a great conversation with @mmccue.bsky.social on the history of the hashtag, why Elon is wrong about it, the future of social networks (vis a vis #ActivityPub, #ATProto, etc), and how LLMs may intersect with social media moderation. This was a good one.

Turning Moments Into Movements...

I was looking into how a Bluesky PDS works from a programming point-of-view.

I came across this document the first time I looked around. (And then someone shared it with me again.)

https://github.com/bluesky-social/atproto/discussions/2350

It gives you an overview, but not a list of API (NSID) end-points to implement.

The only resource I could find for that is this:

https://github.com/blacksky-algorithms/rsky/tree/main/rsky-pds%2Fsrc%2Fapis

(You can infer it from the directory names and file names.)

One of a number of take-aways from #ATmosphereConf —

I felt like Paul Frazee (from Bluesky Org) was encouraging people deploy their own relays.

And, to think of the Bluesky Firehose Relay of everything — as a temporary thing to use, when first developing your app or platform. And then later, to deploy your own relay.

One of a number of take-aways from #ATmosphereConf —

Although there is only one Bluesky Firehose Relay of everything —

There are definitely other relays on the Bluesky ATmosphere.

I talked to more than one person who has their own relay on the Bluesky ATmosphere.

...

Although none of these alt-relays seemed to be meant to be broadly used by others. But, instead meant to be used for the platform they created using ATProto.

One of a number of take-aways from #ATmosphereConf —

Bluesky might deal with their relay-problem by introducing an architecture that looks a lot like the Fediverse.

Rather than applications getting everything from the Firehose Relay — applications would get data directly from the PDSes.

Although, it wasn't quite clear when whether this would be 'pull' or 'push'.

But still, it is looking a lot more like the Fediverse's architecture at that point.

this is a great prez! got to learn a lot more about @rudyfraser.com and what he and his team are building for Blacksky and rsky (TIL it's pronounced risky :)) #blacksky #atproto

RE: https://bsky.app/profile/did:plc:k2aligaiotg5dh4u4hrw7mma/post/3ll4q65iojc2b

RE: https://bsky.app/profile/did:plc:dy62mdx64e6i32pcuzfkekmk/post/3ll2zf7thf22v

"If you see someone else building the same thing, don't worry, we don't have just one JavaScript framework" #AtmosphereConf #ATProto