Bluesky is one of those apps where you can tell that all of the work is being put into the backend. The signup process was interesting (i don't have an invite) but it feels like mastodon and matrix
Discussion
Would be interested to know what it offers/will offer that is different from nostr?
It sounds like a mix of how mastodon does federation, and how nostr handles identity? I'm unsure but I was trying to read this blog post to understand it
https://blueskyweb.xyz/blog/3-6-2022-a-self-authenticating-social-protocol