Lessons from Building My First React and Next.js Projects
Things I wish I knew before I shipped my first React and Next.js project to a real user.
My first React projects worked, but they were harder to change than they needed to be. The useful lessons arrived when real content, real loading states, and real users pushed past the tidy examples I had built from.
Components are ownership boundaries
Most of the early pain came from treating React like a collection of page fragments. State lived too high, small changes re-rendered too much, and components knew about data they did not own.
Pushing state closer to the interface that changes it made the code easier to read. Lifting callbacks only when two parts of the page genuinely needed to coordinate removed a surprising number of bugs.
Server and client are design decisions
Next.js became much clearer once I stopped treating every component as client-side by default. Static content and data loading can stay on the server. State, browser APIs, and direct interaction define the smaller client boundary.
That split reduces JavaScript in the browser and makes failure states easier to reason about. It also keeps the content visible while interactive enhancements load.
Build one complete path first
- Connect one real data source before polishing every screen.
- Finish loading, empty, error, and success states for one user journey.
- Test the journey on a phone and with a keyboard before duplicating it.
Shipping is part of learning
A deployed project teaches things a local environment cannot: slow assets, unexpected data, broken links, and assumptions about devices. Shipping a smaller complete product gave me better feedback than keeping a larger unfinished one private.
The main lesson was not a React pattern or a Next.js feature. It was to make ownership clear, complete the full user path, and let real use show what the code needs next.