Building a web app begins by outlining user roles, essential use cases, and the data structure. A strong MVP concentrates on core pathways, intuitive navigation, and consistent UI elements, enabling a fast release without becoming a fragile collection of individual screens.

Post-launch, scalability and dependability take center stage: performance budgets, caching strategies, robust authentication, and clear API definitions. With effective monitoring, continuous integration/delivery, and well-considered architecture, teams can iterate more quickly while preserving codebase stability as features and traffic expand.