Sam Magura is a Software developer at Spot. He joins the show alongside, Jack and TJ to talk about his article, "Why We're Breaking Up with CSS-in-JS".  He was the second most active maintainer of Emotion, a widely-popular CSS-in-JS library for React. But realized it came with a big performance cost and added unnecessary complexity. He describes the specific inefficiencies that he has encountered while using it and how he came to realize them. Moreover,  he talks about his solution to these performance problems.