Bluesky is a decentralized social application created by Twitter founder Jack Dorsey and originally developed in parallel with Twitter. Bluesky uses AT Protocol, an open-source framework built in-house, which means there is considerable transparency about how it is built and what is being developed.
Jack Dorsey introduced the Bluesky project as early as 2019, when he was still the CEO of Twitter. At the time, he said on Twitter that he was funding a small, independent team of up to five open source architects, engineers and designers tasked with building a decentralized standard for social media. The initial goal is for Twitter itself to adopt this standard. But after Musk announced the acquisition of Twitter, Bluesky has completely left Twitter, and Bluesky has now become a competitor of Twitter.
A few days ago, Bluesky open sourced the code base of its Bluesky Social application on GitHub, after which developers can improve Bluesky's code or build their own social network based on this warehouse . Bluesky uses a very loose MIT license. Although it has just been open sourced, it has been forked 100+ times and has obtained 1.5k+ Stars.
Bluesky is not yet open for registration, and it still adopts an invitation system. Because of this, there are only about 100,000 users on the Bluesky platform, including some well-known people and organizations. In addition to the fact that the invitation system restricts user growth, another reason for the relatively small number of Bluesky users is that there are only iOS and Android clients, and the Android client was only launched at the end of April.
Although the birth of Bluesky is inseparable from Jack Dorsey, he is now only a member of the board of directors and does not serve as CEO or participate in day-to-day development. Bluesky's CEO is Jay Graber.