

I've been following ATProto's development from the sidelines since 2022, but I somehow missed this great take by @eloquence on Bluesky interoperability with Mastodon and ActivityPub: https://github.com/bluesky-social/atproto/discussions/1716
"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.
ATmosphere Report - this week's #bluesky and #atproto 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
https://connectedplaces.online/reports/atmosphere-report-124/
Robin Berjon wrote an interesting article on #ActivityPub over #ATProto..
https://socialhub.activitypub.rocks/t/robin-berjon-running-activitypub-over-atproto/3707
And now there is PDS ActivityPub support in ATProto..
https://socialhub.activitypub.rocks/t/atproto-gets-pds-activitypub-support/5365
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? #fediverse #atproto #bluesky #activitypub #mastodonhttps://atproto.com/guides/faq#why-not-use-activity-pub
Q: "I was really high on interoperable social networking, and interoperable sites using #ActivityPub or #ATproto. It doesn’t matter to me, actually. At the end of the day, I just want to see more interoperability of these networks. Do you still think that’s going to happen?"
A: "Yeah, if I had a bet on one, actually, you know what I’d bet on is the #Matrix protocol, the dark horse in the corner." 👀
"Oh, Ghost is no longer just this quiet box, where I go and type something and then hope someone read it, and try and figure out by going to all these places if someone read it. Now it feels alive."
@johnonolan, 2025
https://flipboard.video/w/g8BgnihyFkMsZ4fwGe3MZn
I love this description! Totally captures how I felt when I first got on the fediverse, after years of lonely blogging, and started having conversations and making friends (some of whom I've met at virtual conferences or even in person).
(2/2)
"At the beginning I thought it would be a nice idea to have the different layers ... the complicated stuff like the big firehose as a service, and ... smaller services that connect to that big one, to ... lower the barrier to be part of the network.
But to implement a [PDS] is still so much to do ... it could be even impossible to do that with PHP on a shared hosting environment."
@pfefferle, 2025
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