nodepiazza

You've probably walked past someone who'd find your obscure interest fascinating — and neither of you knew.

That's what nodepiazza is for! Write down what you're into — music, hiking, a specific board game, whatever. When another phone running the app comes within Bluetooth range — a café, a classroom, the same train carriage — the two phones swap interest lists in the background. If you have something in common, you show up in each other's "Nearby" list. Tap to chat.

No servers. No accounts. No internet.
Everything happens between the phones in the room. Messages travel directly, device to device.

Smart matching, on your phone.
A small language model (Gemma 4) runs on-device and does the matching, so the matching works across languages and phrasing. No need for similar or exact wording.

You stay in control.
- Public interests are the only thing shared with nearby phones, and only while scanning is on.
- Private notes (an "about me", things you'd rather not broadcast) stay on your device and only help the model filter matches for you.
- No data is sent anywhere

Built for face-to-face. The app's job is to bring the encounter to you — what you do with it is up to you.