Building a web app begins by outlining user roles, main use cases, and the data schema. A strong MVP concentrates on essential flows, intuitive navigation, and consistent UI elements, enabling rapid delivery without becoming a brittle collection of isolated screens.

Post-launch, scalability and dependability take priority: performance budgets, caching strategies, secure login, and well-defined API contracts. With effective observability, CI/CD, and careful architecture, teams can iterate more quickly while preserving codebase stability as features and traffic scale.