I explain things and help others succeed with developer tooling.

Hi, I'm Kacper Kapuściak.

I spent years building developer tooling in React Native. I had my part in high-impact React Native projects like React Native Reanimated , React Native Screens , React Navigation , Radon IDE , Argent.

Currently, I'm a Founding DevRel Engineer at TesterArmy, meaning I explain things by creating content like articles, demos and videos. Day to day, I also contribute with my engineering skills to the agentic end-to-end framework, e2e.