Prereqs
Node v14.x, npm
npm i -g serverless serverless-offline
npm i -g @nestjs/cli
Something else might be needed may be, but its only a quick instruction.
Try to run project as App
nest start
Then open http://localhost:3000 and you should be able to see "Hello world".
Try to run project as Lambda
npm run build
serverless offline start
"Can not GET /" - why?!