Building a web app begins by outlining user roles, essential use cases, and the data structure. A strong MVP emphasizes core 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, robust authentication, and tidy API contracts. With effective observability, CI/CD practices, and well-planned architecture, teams can move quickly while maintaining code stability as features and traffic increase.