AirBNB is a well-known Web application and business. They’re known not only for their business, but for a high-quality Web experience. How did AirBNB go from a small, simple, Web application with almost no serious front-end technologies to one that is using many of them, including some home-grown systems?   In this talk, Spike Brehm describes the ways in which AirBNB’s front end has changed over time, in order to handle scaling, usability, and maintenance.