We’ve long written core parts of our mobile rendering architecture in Skew, the custom programming language we invented to squeeze additional performance out of our playback engine. Here’s how we automatically migrated Skew to TypeScript without disrupting a single day of development.Skew began as a side project in the early days of Figma. At the time, Skew fulfilled a critical need at Figma: to build out our prototype viewer with support on both the web and mobile. What started as a way to quic...