In my package.json I have these two scripts:
package.json
\"scripts\": { \"start-watch\": \"nodemon run-babel index.js\", \"wp-server\": \"webpack-
Just add this npm script to the package.json file in the root folder.
{ ... "scripts": { ... "start": "react-scripts start", // or whatever else depends on your project "dev": "(cd server && npm run start) & (cd ../client && npm run start)" } }