notecrumbs

A nostr opengraph server build on nostrdb, egui, and skia. It renders notes using the CPU in around 50ms.

Status

WIP!

• Local note fetching with nostrdb
• Basic note rendering
• Fetch notes from relays
• Render profile pictures
• Cache profile pictures
• HTML note page

Very alpha. The design is still a bit rough, but getting there:

Relay discovery & metrics

• Notecrumbs keeps long-lived relay connections and now learns new relays from every event it ingests. Relay list (kind:10002) events and contact lists (kind:3) are parsed for r/relays tags as well as per-contact relay hints, and the pool deduplicates and connects to any valid URLs it sees.
• Per-request fetch loops feed those hints straight into the shared pool, so visiting a profile helps warm future requests that need the same relays.
• Relay pool health counters (ensure calls, added relays, connect successes/failures, and active relay count) are exposed via Prometheus at http://127.0.0.1:3000/metrics, and a mirrored summary is logged every 60 seconds.