Migrating your application from any front-end framework to React can be a challenging and time-consuming exercise. At Everwise, a team of about six engineers has worked over half a year on gradually porting our front-end codebase from Angular 1 to React, by letting both frameworks work together in production. In this talk, I'll explain how we architected the move, what tools we used, what mistakes we made and what benefits we're seeing from having moved to React.