Production-ready Flutter starter kit for building smile detection applications. *Includes: ✅ ML Kit real-time smile detection *What You Can Build: Smile detection games Face detection apps Emotion-detection mini-games Challenge games with leaderboards Content apps that pause on smile detection *Quick Start: flutter pub get Add your Supabase keys flutter run Works on Android & iOS. Flutter 3.0+ required. Includes full source code, documentation, Android setup guide, and quick-start tutorial.