#asknostr

Dear Relays,

How do you run the database of nostr notes for users? What is happening on the backend and is there a common standard or is this left up to each relay to decide? ie. is one relay using SQLite and then fishing for the relevant post when a user requests it? While another uses a graphDB or like Neo4j or something, etc? Or is there a standard that is recognized or makes since with nostr in general and everyone is basically using an "SDK' or library that has this sort of thing common across the ecosystem.