Spotnack
Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote
Spotnack Muse is a mobile application with an on-device AI inference pipeline for 3D shape synthesis from a single 2D image. It runs a compressed version of TripoSG, a 1.5 billion-parameter Rectified-Flow Transformer trained on 2 million curated 3D shapes, directly on the device. Users can upload an image, and the pipeline generates a fully interactive 3D model they can explore in real time. The app is built on React Native (Expo SDK 58) with an Express.js backend and follows MVVM and Hexagonal Architecture for clean separation between the AI inference layer, the domain logic, and the UI.