Creating a web app begins by outlining user roles, essential use cases, and the data structure. A strong MVP concentrates on main workflows, intuitive navigation, and consistent UI elements, enabling a releaseable product that doesn't become a brittle collection of ad-hoc screens.

Post-launch, scalability and reliability take precedence: performance budgets, caching strategies, secure authentication, and clear API specifications. Through effective monitoring, CI/CD, and well-considered architecture, teams can iterate rapidly while preserving codebase stability as features and traffic expand.