Bluesky opens up federation, letting anyone run their own server connecting to Bluesky's network, which uses the AT Protocol; Mastodon uses ActivityPub (Sarah Perez/TechCrunch)

Sarah Perez / TechCrunch:

Bluesky opens up federation, letting anyone run their own server connecting to Bluesky’s network, which uses the AT Protocol; Mastodon uses ActivityPub  —  Social network Bluesky, a competitor to X, Threads, Mastodon, and others, is opening up its doors with today’s news that the network …