🥽 Vitalik - Personal Smart Glasses Assistant

Transform your smart glasses into an AI-powered shopping assistant that understands what you're looking at and handles cryptocurrency payments with just your voice.

🎯 What is Vitalik?

Vitalik is a cutting-edge AI shopping assistant designed for the next generation of AR/smart glasses. Simply look at any product, say "Hey Vitalik," and instantly get prices, make purchases, and complete transactions using cryptocurrency - all through natural voice commands.

See It. Ask About It. Buy It.

No screens. No typing. Just natural conversation.

✨ Key Features

👁️ Visual Intelligence

• Real-time object recognition - Identifies products just by looking at them
• Context-aware responses - Understands what you're looking at and provides relevant information
• Multi-item detection - Can identify multiple products in your field of view

🎙️ Voice-First Experience

• Wake word activation - "Hey Vitalik" or "Okay Vitalik" to start
• Natural language processing - Speak naturally, no rigid commands
• Audio-only feedback - Designed for screenless interaction

💰 Instant Crypto Payments

• PYUSD on Arbitrum - Lightning-fast stablecoin transactions
• Flow blockchain - Support for Flow tokens and NFTs
• One-voice checkout - Confirm purchases with a simple "yes"
• On-chain verification - Every transaction is real and verifiable

🔐 Enterprise-Grade Security

• Authorized vendors only - Curated list of trusted merchants
• Voice confirmation required - No accidental purchases
• Duplicate protection - Smart detection prevents double-charging
• Blockchain transparency - All transactions on public testnets

🚀 Live Demo

Experience the future of shopping:

1. Enable camera and microphone when prompted
2. Say "Hey Vitalik" to activate
3. Show any product to the camera (try a Coke can, phone charger, or water bottle)
4. Ask about pricing - "What does this cost?"
5. Make a purchase - "I want to buy this"
6. Confirm with voice - Say "yes" to complete the transaction

🛠️ Technology Stack

• AI Vision: Google Gemini 2.5 Flash for real-time visual analysis
• Blockchain: Arbitrum Sepolia (PYUSD) & Flow Testnet
• Voice Processing: WebRTC streaming with live transcription
• ENS Integration: L2 optimistic name resolution
• Framework: Next.js with React

💡 Use Cases

Retail Shopping

Walk through stores and instantly get product information and prices without pulling out your phone.

Vending Machines

Look at items in a vending machine and purchase with voice commands - no physical interaction needed.

Museum & Gallery Tours

Get information about artifacts and artwork, with optional donation or purchase capabilities.

Accessibility

Empowers visually impaired users with voice-guided shopping and audio confirmations.

🏗️ Architecture

┌─────────────────┐     ┌─────────────────┐     ┌─────────────────┐
│   Smart Glasses │────▶│   Gemini AI     │────▶│   Blockchain    │
│   Camera + Mic  │     │  Vision + Voice  │     │  Arbitrum/Flow  │
└─────────────────┘     └─────────────────┘     └─────────────────┘
         │                       │                        │
         │                       ▼                        │
         │              ┌─────────────────┐              │
         └─────────────▶│   Voice Output   │◀─────────────┘
                        │   Confirmation   │
                        └─────────────────┘

🌍 Real Transactions

Every purchase is a real blockchain transaction:

• Arbitrum Sepolia: View on Arbiscan
• Flow Testnet: View on Flowscan

🔮 The Future of Commerce

Vitalik represents the convergence of:

• Augmented Reality - Information overlaid on the real world
• Artificial Intelligence - Understanding context and intent
• Blockchain Technology - Instant, global, programmable money
• Voice Computing - The most natural human interface

🚦 Getting Started

Prerequisites

• Node.js 18+
• Camera and microphone access
• Wallet with testnet PYUSD or Flow tokens

Installation

# Clone the repository
git clone https://github.com/yourusername/vitalik

# Install dependencies
pnpm install

# Set up environment variables
cp .env.example .env.local

# Run the development server
pnpm dev

Environment Variables

NEXT_PUBLIC_GEMINI_API_KEY=       # Google AI Studio
WALLET_PRIVATE_KEY=                # For PYUSD transfers
FLOW_PRIVATE_KEY=                  # For Flow transfers
FLOW_ACCOUNT_ADDRESS=              # Your Flow account
ARBITRUM_SEPOLIA_RPC_URL=          # Arbitrum RPC endpoint

📊 Supported Products

Currently recognizes and sells:

• Beverages: Coca-Cola, Pepsi, Sprite, Energy Drinks, Water
• Electronics: USB-C Chargers, Phone Chargers, Laptop Chargers
• Digital Goods: Flow NFT Packs, Collectibles

🌟 Vision

We believe the future of shopping is:

• Frictionless - No apps, no cards, no checkout lines
• Intuitive - As natural as asking a friend
• Transparent - Every transaction on-chain
• Accessible - Voice-first for everyone

Vitalik is more than a shopping assistant - it's a glimpse into a world where technology disappears into the background, leaving only natural human interaction with instant, global, programmable money.