Building a web app begins by outlining user roles, essential scenarios, and the data model. A strong MVP concentrates on primary flows, intuitive navigation, and consistent UI elements, enabling fast delivery without becoming a brittle collection of ad-hoc screens.

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