RevenueCat Shipyard 2026

A mobile app that imports recipes from social media (TikTok, Instagram, YouTube), then guides you through cooking with an AI assistant that learns your preferences and adapts recipes to your style.

• Technical Documentation
• Written Proposal

Recipe Management

• Import recipes from TikTok, Instagram, YouTube using AI extraction
• Multi-source support (websites, manual entry, social platforms)
• "My Version" - save personalized recipe adaptations

AI Cooking Assistant

• Real-time help while cooking (substitutions, troubleshooting, techniques)
• Fully hands-free voice interaction
• RAG-powered responses using cooking knowledge base + user history
• Intent-based routing to optimal AI model

Cooking Experience

• Step-by-step voice-guided navigation
• Multiple concurrent timers with voice alerts
• Automatic learning detection (captures your preferences)
• Session memory that improves over time

Modes

• Casual Cook - simple cooking with AI help
• Chef Mode - full power with version history, learnings, analytics (subscription)

Smart model routing automatically selects the optimal AI based on query complexity:

Result: 97% cost reduction vs Claude-only ($0.00066/msg vs $0.02/msg)

Architecture Components:

• OpenRouter gateway with automatic fallback to direct Claude
• RAG system: recipe knowledge base + user memory
• OpenAI embeddings with vector similarity search

See docs/ai-optimization-results.md for performance data.

• Frontend: React Native / Expo SDK 54
• Backend: Supabase (Postgres, Auth, Edge Functions, Realtime)
• AI Models: Claude Sonnet 4, GPT-4o Mini, Gemini Flash 1.5 (via OpenRouter)
• Voice: OpenAI TTS HD + Whisper API
• Subscriptions: RevenueCat
• State: Zustand + React Query
• Scraping: Supadata.ai (social media recipe extraction)

• Node.js 18+
• pnpm
• Expo CLI
• Supabase project

# Clone the repo
git clone https://github.com/mateodaza/chez.git
cd chez

# Install dependencies
pnpm install

# Copy environment variables
cp .env.example .env
# Edit .env with your Supabase credentials

# .env
EXPO_PUBLIC_SUPABASE_URL=https://your-project.supabase.co
EXPO_PUBLIC_SUPABASE_ANON_KEY=your-anon-key

Edge Functions require additional secrets (set via Supabase dashboard):

• ANTHROPIC_API_KEY - Claude API
• OPENAI_API_KEY - Embeddings, TTS, Whisper
• SUPADATA_API_KEY - Video transcript extraction

# Start Expo dev server
pnpm start

# Run on iOS simulator
pnpm ios

# Run on Android emulator
pnpm android

Migrations are in supabase/migrations/. Apply them to your Supabase project:

supabase db push

supabase functions deploy import-recipe
supabase functions deploy cook-chat-v2
supabase functions deploy text-to-speech
supabase functions deploy whisper
supabase functions deploy embed-memory

Environment Secrets (set via Supabase dashboard):

supabase secrets set ANTHROPIC_API_KEY=sk-ant-...
supabase secrets set OPENAI_API_KEY=sk-...
supabase secrets set OPENROUTER_API_KEY=sk-or-v1-...
supabase secrets set SUPADATA_API_KEY=...

chez/
├── app/                    # Expo Router screens
│   ├── (auth)/            # Login/signup
│   ├── (tabs)/            # Main tab navigation
│   ├── cook/[id].tsx      # Cook mode screen
│   └── recipe/[id].tsx    # Recipe detail
├── components/            # Reusable components
├── lib/                   # Utilities
│   ├── supabase/         # Supabase client
│   ├── extraction/       # Platform detection
│   └── auth/             # Auth helpers
├── hooks/                 # Custom React hooks
├── stores/                # Zustand stores
├── types/                 # TypeScript types
└── supabase/
    ├── migrations/        # Database migrations
    ├── functions/         # Edge Functions
    └── seed/              # Seeding scripts

pnpm start          # Start Expo dev server
pnpm lint           # Run ESLint
pnpm lint:fix       # Fix ESLint issues
pnpm format         # Format with Prettier
pnpm typecheck      # TypeScript check
pnpm validate       # Run all checks

# Build for iOS TestFlight
pnpm build:ios:local