Building a web app begins by outlining user roles, primary use cases, and the data structure. A robust MVP emphasizes essential flows, straightforward navigation, and reliable UI elements, allowing rapid delivery without becoming a brittle collection of ad-hoc pages.

Post-launch, scalability and dependability are paramount: performance budgets, caching, secure login, and well-defined API agreements. Through effective monitoring, CI/CD, and well-planned architecture, teams can accelerate iteration while maintaining codebase stability as features and user load increase.