The default Sapper template integration with storybook. To clone it and get started:
# app run
git clone https://github.com/gustaYo/sapper-storybook.git
cd sapper-storybook
yarn install
yarn dev
# storybook
yarn storybook
# build storybook
yarn build-storybook
# static build files now in storybook-static folder
Open up http://localhost:9009.
yarn builder
now