Building a web app begins by outlining user roles, main use cases, and the data structure. A robust MVP concentrates on essential paths, intuitive navigation, and consistent UI elements, enabling rapid delivery without becoming a fragile collection of ad-hoc screens.

Post-launch, scalability and dependability take precedence: performance budgets, caching strategies, secure login, and well-defined API contracts. With effective monitoring, automation pipelines, and a well-planned architecture, teams can iterate more quickly while maintaining code stability as features and user load increase.