How to customize webpack with Docusaurus 3?

[jcubic]

I have this error:

Module not found: Error: Can't resolve 'path' in '/home/kuba/projects/jcubic/terminal/repo/docusaurus/docs/src/components/Terminal'

BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.

If you want to include a polyfill, you need to:
	- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
	- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
	resolve.fallback: { "path": false }

When using:

import path from 'path';

How can I add this fallback, if there is no webpack config file?

[jcubic]

It's duplicate of:

• How to access the site configuration from markdown pages? #10302