Final Architecture Decisions Summary

Technical Stack

• Frontend: Expo + React Native with TypeScript (iOS/Android/Web)
• Backend: Deno + TypeScript with WebSocket API (likely Hono or Oak framework)
• Database & Auth: Supabase for authentication and data persistence
• Development Environment: WSL2 + Ubuntu on Windows with VS Code

Key Benefits of Full Deno Stack

• Shared TypeScript types between frontend and backend
• No compilation step - direct TypeScript execution
• Built-in WebSocket support with excellent performance
• Simpler deployment - single executable or Deno Deploy
• Modern tooling - built-in formatter, linter, test runner
• Secure by default with explicit permissions

Backend Framework Options for Deno

• Hono: Lightweight, fast, great TypeScript support
• Oak: Express-like, mature ecosystem
• Fresh: Full-stack framework (might be overkill for API-only backend)

Revised Development Environment

• WSL2: Expo + React Native development
• WSL2 or Windows: Deno backend (your choice - both work well)
• Shared: TypeScript types in shared directory
• VS Code: Deno extension + WSL extension

This gives us a production-ready, scalable foundation that can grow from chat to multiple game types while maintaining real-time performance across all platforms.