Fastify (TypeScript) - Production Backend Framework Overview Fastify is a high-performance Node.js web framework built around JSON schema validation, encapsulated plugins, and great developer ergonomics. In TypeScript, pair Fastify with a type provider (Zod or TypeBox) to keep runtime validation and static types aligned. Quick Start Minimal server ✅ Correct: basic server with typed response ❌ Wrong: start server without awaiting listen Schema Validation + Type Providers Fastify validates requests/responses via JSON schema. Use a type provider to avoid duplicating types. Zod provider (recommen…