bostrみたいな動きっぽいな
quoting note1w7a…zau4PrimalHQ/primal-caching-service: Primal’s caching service for Nostr connects to the specified set of relays, collects all events in real time, stores them locally, and makes them available to nostr clients through a web socket-based API.
https://github.com/PrimalHQ/primal-caching-service