@tomaash , don't get me wrong - I appreciate the effort you've put into this.
But I think this is a bit too specialized to include it by default, especially since users that don't want to use it still have to live with the overhead it creates, at least without ejecting their project.
Furthermore, weakening the type checking strictness is something I'd not recommend or like, at least if it can be avoided.

However, I would be really useful to have this setup available in some kind of documentation for those interested in it.

I agree, this cannot really be just merged. After some experimenting, I reverted my approach to not usetypings-for-css-modules-loader as well. The overhead is just too much. I'll create another PR with less intrusive approach when I get it more polished.

OK, so I just figured out that the best way to get CSS modules to any create-react-app setup is to usereact-app-rewired Now my addons to react-scripts webpack are in aplugin. Closing this PR.

@tomaash
create-react-app css modules enabled by default.
Try creating css file

:local {  .demo: {color: red; }}

then just import it like

importstylefrom'./my.css'//...<MyAppclassname={style.demo}/>