We're currently using Storybook as part of our design system. To run Storybook and test some of our UI components, clone the repo and run the following:
yarn
yarn storybook
You should then see:
info Storybook started on => http://localhost:6006/
In your browser, navigate to http://localhost:6006/ to see the Storybook application. From here, you'll be able to easily view components and even modify some of their properties.