Hackathon · 2026 · Superlinked × Alibaba Cloud Qwen Hackathon · London 2026
Echo
A hardware recorder that turns a meeting into searchable notes, action items and answers about what was decided.
Track Winner - Superlinked x Alibaba Cloud Qwen 2026
Only 25 people were selected for the day, which ran at the Alibaba Cloud offices in London.
Python · C++ · ESP32-S3 · FastAPI

The problem
Meetings disappear. Someone takes half a page of notes, the decisions stay in one person's head, and a week later nobody can say what was agreed or who is meant to be doing it.
What I built
We built a recorder you press once: an ESP32-S3 board streams the audio to a backend that separates the speakers, writes the notes, pulls out the action items and makes every past meeting searchable. A dial on the device picks the kind of meeting, and that choice decides which model writes the notes.
What it does
- One Button, One Dial. Press the button to start recording, turn the dial to say what kind of meeting it is, and the little screen tells you it is listening.
- Knows Who Said What. The audio comes back split by speaker, so the notes can say who agreed to what instead of just what was said.
- Searches Every Meeting. Ask what was decided about something and it looks back through everything you have recorded, not only the last call.
- Two Clouds, One Job. Each step goes to whichever provider does it best, Superlinked or Alibaba Cloud Qwen, and either one takes over when the other fails.
Demo
Photos



The full engineering is on GitHub.