Feed generator (Bluesky)
A third-party service in Bluesky that produces a custom feed of posts according to any logic. Anyone can build and publish a feed generator → users choose for themselves which algorithms they subscribe to, instead of a single platform-dictated ranking.
Idea: "algorithm choice as a marketplace". A feed generator is a server that takes Bluesky's firehose and returns a list of post IDs according to its own logic — chronological, topic-based ("cats only"), community-curated, or machine-learned. The user sees tabs of chosen feeds alongside their following timeline. Technically: an HTTP service that implements the AT protocol's feed-skeleton endpoint. Popular examples: "Discover", "Quiet Posters", topic and language feeds. Philosophy: break the platform's monopoly on what you see → open competition for attention ranking. A contrast to TikTok/Instagram where the algorithm is a black box you can't switch. One of Bluesky's most distinctive innovations.