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Every NestJS application has at least one module, the root AppModule . Modules are a way to organize code into cohesive blocks. They are classes decorated with @Module() that describe the components of that particular part of the application (controllers, providers, imports, and exports).
While the "Official NestJS Fundamentals" course is a paid resource on the Official Courses Website, there are several high-quality, free alternatives that cover the same core curriculum. Nestjs Fundamentals Course Free Download
The Official NestJS YouTube Channel frequently hosts live streams and recordings of conference talks that function as mini-courses. Every NestJS application has at least one module,