Document the use of dependencies vs devDependencies

[jrop]

Question about Next.js

(I posed a question over in spectrum, but got no answer; I hope I am not spamming here)

First things first: I am absolutely loving Next.JS! It is so much simpler to use than other React frameworks out there, and gives a lot of stuff out-of-the-box in a simple-to-grasp way. Thanks!

Now for my question: the documentation seems kind of slim on how production builds work: what is needed as far as dependencies go? Are all the DevTools shipped (babel, WebPack, etc.) in production? Also, when I add a framework, (say material-ui), does that need to be in my dependencies or devDependencies?

I ask because, when building for Docker, I would like to create the smallest image possible, and when I add a framework (such as material-ui) I am accustomed to adding it as a devDependency. However, with NextJS, it is unclear to me what the runtime needs are: does NextJS need such dependencies for SSR, etc.?

If sufficient explanation is given here, I wouldn't mind condensing it into a PR for the docs, as I wish this was more clearly explained.

Thanks!

[timneutkens]

You can read this: #4496