In a nutshell, all Next.js configurations are done via next.config.js. With Next.js 5, this became even easier.
Let's create an empty project for experiments:
$ npm init$ npm install react react-dom
Let's add SASS support as an example:
$ npm install next node-sass @zeit/next-sass --save-dev
Enhance the scripts section of package.json:
// package.json{ "scripts": { "start": "next" }}
Next, we again have to create a custom document (the same as before):
// pages/_document.jsimport Document, {Head, Main, NextScript} from 'next/document';export default class MyDocument extends Document { render() { return ( <html> <Head> <title>NextJS Condensed</title> <link rel="stylesheet" href="/_next/static/style.css"/> ...
