What is NestJS?
Under the hood, Nest makes use of Express, but also, provides compatibility with a wide range of other libraries, like e.g. Fastify, allowing for easy use of the myriad third-party plugins which are available.
NestJS is a tool in the Frameworks (Full Stack) category of a tech stack.
Why developers like NestJS
Powerful but super friendly to work with
Easy to understand documentation
Angular style syntax for the backend
Its easy to understand since it follows angular syntax
Typescript makes it well integrated in vscode