Building a web app begins by outlining user roles, main use cases, and the data structure. A robust MVP concentrates on essential paths, intuitive navigation, and consistent UI elements, allowing the product to launch rapidly without becoming a brittle collection of custom screens.

Post-launch, scalability and dependability are paramount: performance budgets, caching strategies, secure sign-in, and tidy API agreements. With effective monitoring, continuous integration/delivery, and well-planned architecture, teams can iterate more swiftly while maintaining code stability as features and traffic expand.