NestJS is a progressive Node.js framework for building efficient and scalable server-side applications. It uses TypeScript by default, supports both Express and Fastify, and provides an out-of-the-box application architecture inspired by Angular. NestJS combines elements of OOP, FP, and FRP, making it ideal for building enterprise-grade applications. The skill is based on NestJS documentation, generated at 2026-02-01. CLI | Topic | Description | Reference | |-------|-------------|-----------| | CLI Overview | Scaffolding, building, and running applications | cli-overview | | Monorepo & Librar…