Building a web app begins by outlining user roles, essential use cases, and the data structure. A strong MVP concentrates on main workflows, intuitive navigation, and consistent UI elements, allowing the product to launch fast without becoming a brittle collection of ad-hoc screens.

Post-launch, growth and dependability take precedence: performance budgets, caching, robust authentication, and clean API contracts. With effective monitoring, CI/CD, and well-planned architecture, teams can iterate more rapidly while maintaining codebase stability as features and traffic increase.