Building a web app begins by outlining user roles, main use cases, and the data structure. A strong MVP concentrates on essential flows, intuitive navigation, and stable UI elements, enabling fast delivery without evolving into a brittle collection of bespoke screens.

Post-launch, scalability and dependability take precedence: performance budgets, caching strategies, robust authentication, and tidy API interfaces. Through effective monitoring, continuous integration/continuous deployment, and well-considered architecture, teams can iterate rapidly while maintaining codebase stability as features and traffic expand.