I read the excellent article How to Write PureScript React Components to Replace JavaScript by @thomashoneyman.
It inspired me to integrate React components written in PureScript in a create-react-app TypeScript project using purs-loader and without the need to eject.
Here is a repository demonstrating how this would look like:
It is using craco to overwrite parts of the webpack configuration of create-react-app. I also created a plugin craco-purescript-loader to make the integration quite simple.
It allows you to import PureScript react components in TypeScript through webpack:
import { mkCounter as Counter } from "./Counter.purs";
// ...
function App() {
return <Counter />;
}
I think there are better ways to create PureScript projects, but this example could help a lot to start migrating a React Application to PureScript by adding single components to the existing code base. That’s what I’m doing and maybe this is helpful for somebody else! 
