This talk is about the concept of "cross-platform rendering," where one set of view-layer primitives can be used as abstractions to render across different platforms' view-APIs. "Web? iOS & Android? TV!? All with one 'effin set of templates?" Youbetcha. This talk will focus on how React Native is used for cross-platform development, and cover some of the prominent technologies and challenges involved in making "Universal" React Native apps for web and mobile.