Firstly, make sure you have Yarn installed, which depends on Node JS.
Then clone this git branch:
# Clone the repo.
git checkout https://github.com/jonathanj/bbl-storybook.git
# Change directory into the cloned repo.
cd bbl-storybook
# Install all the dependencies.
yarn install
# Run the storybook, it should automatically open your browser at the right place.
yarn run storybook