build a Bluesky feed from blocks — stack inputs, filters and a sort, preview it live.
Inputs query the public Bluesky network directly (search, lists, authors), or take the whole firehose. The feed definition you build here is the record we’ll write to your PDS — feeds live on ATProto, not a database. Query feeds are served by b.mino.mobi; firehose feeds by hose.mino.mobi, which holds the stream open and filters as posts arrive.