Node.js hot reload

[georgekrax]

Whenever I restart my Node.js index.js server file it takes too long, because of all the DB connections, GraphQL stuff and of course imports. So, I was wondering how does Next.js achieve such an incredible development performance with both frontend and backend? I guess it hot reloads files that are only changed and not the whole project directory.

So, is there a way I can implement something similar myself? Do you know where I can find hot reload / fast refresh code of Next.js in their repo? Can SWC help with this whole procedure?

Thanks for the help!