A Korean-language engineering blog post from Kakao Pay Insurance's frontend team reflecting on the lifecycle of shared UI components. The authors discuss when to create common components, when they become problematic (taking on too many responsibilities or being prematurely abstracted), when to combine them into templates, and when to deprecate them. The post concludes by proposing headless components as a pattern that separates logic and accessibility from visual styling, allowing teams to maintain stability while preserving design flexibility.