Coming from Java and Spring Boot, I miss a good typescriptdoc (a javadoc alternative). And while NestJS has a quite excellent documentation, it is missing source code documentation. Javadoc for open source projects has a free hosting called https://www.javadoc.io/ Unfortunately I could not find a similar service for TypeScript. Nevertheless, there is a way to generate documentation using typedoc.
Generating typedoc for NestJS
typedoc --out nest-docs/ nest/packages/ --ignoreCompilerErrors --mode file
where nest-docs/ is where the documentation will be outputted.
I ran this command and put the NestJS API here: NestJS Documentation