Starter Svelte app with D3.js.
From either /start or /end:
Install the dependencies...
npm install
...and start Rollup:
npm run dev
The app will run with hot reloading on localhost:5000.
To create an optimised version of the app:
npm run build
You can run the newly built app with npm run start. This uses sirv, which is included in your package.json's dependencies so that the app will work when you deploy to platforms like Heroku.