Okay, we just open sourced our Nostr caching service under the MIT license.
We’ll publish more supporting materials in the coming weeks, but you should already be able to stand up an instance and start caching.

GitHub
GitHub - PrimalHQ/primal-caching-service: Latest development moved to https://github.com/PrimalHQ/primal-server | 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.
Latest development moved to https://github.com/PrimalHQ/primal-server | Primal’s caching service for Nostr connects to the specified set of relay...