Download the example or clone the repo:
curl https://codeload.github.com/mui-org/material-ui/tar.gz/v1-beta | tar -xz --strip=2 material-ui-1-beta/examples/create-react-app-with-typescript
cd create-react-app-with-typescript
Install it and run:
yarn start
This example demonstrate how you can use Create React App with TypeScript.