It's easy to create a react-big-scheduler demo with create-react-app and yarn. Install create-react-app and yarn first if you haven't.
$ npm install -g create-react-app yarn
Create the demo app and install react-big-scheduler:
$ create-react-app react-big-scheduler-demo
$ cd react-big-scheduler-demo
$ yarn add react-big-scheduler
Copy src/Basic.js and src/withDnDContext.js from this repo to the src folder, and replace all the App words with Basic in src/index.js. Then start the demo:
$ yarn start