One part of this particular puzzle is data availability, i.e. users will have to either pay for archival services (read: large relays) or run their own [archival] relays for the stuff that they care about (mostly their own notes, and notes they have interacted with). nostr-relay-tray and similar efforts are a step in the right direction. I mention nostr-relay-tray specifically because it supports NIP-50 search out of the box, which is fantastic. One step at a time…