I was first going to call this piece "Universal Apps" but I realized that what I really wanted to write about is Universal React. React is everywhere now: powering all sorts of websites, extending its use cases to universal apps(mobile, desktop, and even VR) with React Native, and now running on the server with React 19 and server components. And while it's an exciting time to be in that devs can build highly reactive apps across platforms with a lot more ease, there's also a lot of complicat...