Understand the outcome

Before building screens, define who the product serves and what a successful task looks like. Map the essential workflow and agree on the smallest version that delivers value.

Design the experience

Sketch the user journey, including empty states, validation, errors, and recovery. Start with small screens and make the primary action clear.

Build with clear boundaries

Use React for reusable interface elements and TypeScript to describe the data moving between them. Keep presentation separate from validation and authorization. Types help prevent mistakes, but runtime validation is still necessary for external input.

Test the real workflow

Check complete tasks rather than only isolated screens. Test slow connections, invalid input, keyboard navigation, and mobile layouts.

Deliver and iterate

Release a focused version, observe where people struggle, and prioritize improvements that make the product more useful. Maintainability and reliability matter just as much as the first impression.