● ABOUT

a full-stack real-time chat app with WebSocket-based messaging, unique room invite codes, and Google OAuth via NextAuth.js.

● WHY

wanted to understand how real-time systems work under the hood. so i built one from scratch.

● FEATURES

• — sub-100ms message delivery
• — room subscriptions and typing indicators
• — Google OAuth via NextAuth.js
• — TurboRepo monorepo with shared Prisma package

● IMPACT

• — supports multiple concurrent chat rooms simultaneously
• — unique invite codes eliminate unauthorized room access
• — persistent chat history survives server restarts
• — monorepo cuts shared code duplication across services

● ARCHITECTURE

• — WebSocket server handles real-time bidirectional events
• — Next.js frontend with Zustand for client state
• — Prisma ORM over PostgreSQL for message persistence
• — TurboRepo monorepo — frontend, backend, shared db package
• — NextAuth.js handles Google OAuth session management

● STACK