#trpc

Set up the complete T3 Stack (Next.js, tRPC, Tailwind, Prisma). Focus on the end-to-end authentication flow. Steps: 1. Configure NextAuth with Prisma adapter. 2. Create tRPC procedures to fetch 'protected' user data. 3. Build a login page with provider buttons. 4. Implement a 'UserButton' client component with session hooks. 5. Ensure type safety from DB to UI.

Build type-safe APIs with tRPC. Architecture: 1. Define routers with input/output schemas. 2. Zod for runtime validation. 3. Automatic TypeScript inference. 4. React Query integration for client. 5. Middleware for auth and logging. 6. Context for user sessions. 7. Subscriptions with WebSockets. 8. Error handling with TRPCError. No code generation needed. Use with Next.js or standalone Express server.