I’ve been following BlueSky closely for a while and I’ll just add a few points here:

1. There is currently a federation sandbox for developers, it’s definitely on the way but it is a significantly different model than AP. Severs are really “dumb” and it has an emphasis on using a handful of services to crawl the network and generate a pipeline of all posts.

2. Moderation and custom algorithms are also a part of the decentralized model. Custom algorithms are out now, and custom moderation services are also under development.

Having played with both AP and ATP a fair amount they definitely both have strengths and weaknesses, very different approaches to decentralized social networking.

I asked this in the original thread but I’ll repeat it here:

1. Are there any limitations with the ActivityPub protocol you find limiting? Do you have recommendations for future versions of the protocol?

2. Do you have any thoughts on the AT Protocol (a potential competitor to AP)?