We're in: building Second Hand for the Meta Global AI Developer Hackathon

Aivonic Labs is taking part in the Meta Global AI Developer Hackathon 2026, in the Startup track. We have until 4 November to build something real, and here is what it is.

What we're building: Second Hand

Second Hand is a hands-free coworker that lives in a pair of Ray-Ban Meta glasses.

It sees what you see and answers in your ear while your hands are on the job. Ask "which valve do I open?" and it tells you, and the phone shows the exact part outlined. It is meant to stop you before work that needs a licensed electrician. And when you say "done", it writes the job report and a draft invoice, so the paperwork does not wait for the evening sofa.

Why this problem

The hackathon theme we chose is Build for Your World: a problem you know firsthand.

The people we build for at Aivonic are small trade businesses: the plumber, the property technician, the firm where everyone is out on a job when the phone rings. Their hands are on a radiator or inside a ventilation unit, never on a screen. The phone call, the question to a colleague and the job report all compete with the work itself.

Our AI receptionist takes care of the phone while they work. Second Hand is the other half of the idea: help that arrives while the hands are busy.

How it works

The glasses stream what the wearer sees to an Android app through Meta's Wearables Device Access Toolkit. A server listens with Muse Voice Transcribe, reasons over the picture and the job so far with Muse Spark, and outlines the part it is talking about with SAM 3.1. The answer is spoken back through the glasses.

The key to Meta's models stays on the server, never in the app.

Building in public

Everything is written during the hackathon, and the code is public from the first commit: github.com/AIVONIC/second-hand.

Where it stands after the first two days: the voice loop runs end to end on the server, and the Android app is built. Next is the first real test on the glasses. We will share what works, and what does not, as we go.

Want this for your business?

If your team's hands are on the job when the phone rings, start with Sanna, our AI receptionist. Call her in your browser: aivonic.ai/demo/sanna.