I have been working on a social media type of web app for book readers.

Did pretty much on the backend with expressJS (it was my first big project).

As i learned more about scalability, architecture and code maintainability i realised that I have done a rockie mistake.

I have not integrating the old express app into the NestJS. I have tried it as monorepo this time instead of saparate repo, haven't faced much trouble yet but still has a lot to work on.

What are your advice in this situation? here is the new monorepo I created.

github.com/rehanhalai/recto