A Better U
Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

A Better U VR is a Meta Quest 3S app where you talk to Atlas, a voice assistant that takes real actions on a live health and fitness platform. Logging food and workouts is fiddly, and in a headset you have no phone or keyboard to hand, so Atlas does it for you. Say "log a Big Mac for Dinner" and it lands in your real food diary. Ask for a restaurant's full menu and pick from it. Look at a plate and Muse Spark names the foods, SAM 3.1 outlines them, and the app estimates their weight for you to correct and confirm. Ask for two sets of five squats and the gym opens, the headset counts your reps and saves the sets, Muse Image makes a session card, and Atlas drafts a post for your feed that goes out only after you approve it. Atlas is an assistant, not a coach, and gives no medical or fitness advice. Tool results are the only source of truth: it says "saved" only after the backend confirms the write, and calories come from the database, never from a model. Existing before the hackathon: the A Better U web app, phone PWA and Supabase database. Built during the hackathon: the whole VR app, the Atlas agent and the Meta model integrations. Both are labelled in the video. Food data is UK-based (UK supermarket, restaurant and CoFID items), so judges in the US may see different portions and calories for the same product, such as a McDonald's Big Mac. The Food Diary and food picker say so on screen. To try it: tap Judge Instant Login. Accept the microphone prompt at launch, and the camera prompt the first time you open Scan a Plate. The APK is supplied privately because it contains API keys.