Bluesky, a social media platform, has announced data federation for self-hosters, allowing users to host their own data and potentially move it to another provider without losing connections. This move aims to give users more control over their data and make social media more like the open web. The platform's architecture is designed to work like the web, with a focus on global conversation and composable moderation. Bluesky's goal is to create a self-sustaining social web that isn't controlled by a single company.