Within days, Wunderman Thompson created Sofa Sets, a virtual music festival delivered through a front-end app built on Heroku. The front-end app uses YouTube to stream the musicians’ live performances. The developers built the app in React Native and leveraged add-ons from the Heroku Elements Marketplace for load testing and autoscaling. To quantify the impact the music festival may have had on slowing the spread of COVID-19, the team created an algorithm using data from the World Health Organization and viewer location data to show the number of hospital stays reduced, ventilators spared, and lives saved over a similar period in those locations. As a result, the first Sofa Sets festival delivered an engaging experience for over 28,000 viewers.