CartDB is a Snap Spectacles lens that turns grocery shopping into a fun, health-aware, and sassy experience.
Scan items, hear Cardi-B-style reactions, view nutrition info, and climb the leaderboard for the healthiest cart — powered by Supabase, Docker, and Lens Studio.

The U.S. faces a major public health crisis — over 40% of adults are obese, leading to heart disease, diabetes, and billions in healthcare costs.
Healthy choices are often confusing, boring, and lack instant feedback.

CartDB makes nutrition fun and social.
As you shop with Snap Spectacles, CartDB scans your groceries, displays nutrition insights, and gives you Cardi-B-inspired voice commentary to keep you entertained (and accountable).

• 🎯 Smart Scan: Detects grocery items and retrieves their nutrition data (Nutri-score, calories, price).
• 🧠 Supabase Backend:
  • User preferences (vegan/vegetarian/etc.)
  • Food item metadata and pairings
  • Real-time leaderboard via Supabase Realtime
• 🗣️ Cardi-B-Style Voice Feedback: Fun, swappable voice quotes reacting to what you scan.
• 🏆 Healthy Shopping Leaderboard: Compete with others by building the healthiest cart.
• ☁️ Edge Functions: Analyze nutrition data and update scores instantly in the cloud.

Camera (Spectacles) → Docker Container 1 → Scandit API (Barcode Detection) → Lens Studio (Lens Visualization + Voice Logic) → Supabase (Database + Edge Functions + Realtime Leaderboard)

• Database & Storage: Supabase Tables store user preferences, food data, and scan logs.
• Realtime Subscriptions: Used for the global leaderboard and collaborative sessions.
• Edge Functions: Calculate Nutri-scores, health ranks, and witty feedback responses.

• Snap Lens Studio
• Docker
• Node.js + npm
• Supabase account (with project and tables set up)

# Clone the repository
git clone https://github.com/nickross4444/CartDB.git
cd CartDB

# Set up environment variables
cp .env.example .env
# Add your Supabase URL, API key, and Scandit credentials

# Build and run containers
docker compose up --build

Open Lens Studio Import the lens/ folder Configure API endpoints to your running Docker backend Deploy to your Spectacles

• 🥦 3D Models of Foods: Animated AR items for a richer shopping experience
• 💳 Payment Integration: Connect to payment gateways or loyalty APIs
• 🛍️ Shareable Shopping Lists: Sync and send lists to friends
• 👩‍⚕️ Dietician Avatar: Personalized nutrition coaching
• 💸 Deals & Coupons: Suggest healthier alternatives on discount

• Project Lead - Nick Ross
• Developers - Nigel Hartman, Nick Ross, Guillaume Dagens, Uttam Grandhi
• Designers - Guillaume Dagens, Uttam Grandhi

• Snap - for brining together the best minds from all over the world!
• Supabase — for the realtime backend
• Scandit — for barcode recognition
• Fineshare AI - for audio generation
• Snap Lens Studio — for AR development
• Cardi B — for the inspiration and sass 💅