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.

Python · C++ · ESP32-S3 · FastAPI

Echo

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

Demo

Photos

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The full engineering is on GitHub.