Next.js is a React framework from Vercel (formerly ZEIT), and is the inspiration for Sapper. There are a few notable differences, however:

page components can have an optional preload function that will load some data that the page depends on. This is similar to getInitialProps in Next.js or asyncData in Nuxt.js.

Given the massive amount of stars it had acquired on Github and the fairly quick and easy setup, it seemed very promising. When it comes down to its isomorphic functionality, it’s hard to match. But when it we started using the static export features, we were dropped on our faces with a very ungraceful transition from isomorphic to static that came with a cold side of faulty hot-reloading, strange routing strategies and highly bloated bundles: