By early 2017, Airbnb was seeing around 75 million searches each day. In the midst of that growth, the team decided to rearchitect the web experience.

In the prior architecture, each page of the user’s journey, from searching, to viewing listings, to booking, was delivered standalone via Rails. The goal of the redesign was to maximize speed and fluidity.

In the new configuration, Hypernova is used to server-render React, and Redux is used for all API data and “globals,” like authentication state and experiment configurations.