Next.js is an open source React front-end development web framework that enables functionality such as server-side rendering and generating static websites for React-based web applications.
Example Storefront is Reaction Commerce’s headless ecommerce storefront - Next
Open source web application to learn JS stack: React, Material-UI, Next
Hacker News clone rewritten with universal JavaScript, using React and GraphQL
The source code demos for the yFiles for HTML diagramming library