Building a web application starts by outlining user roles, essential scenarios, and the data structure. A strong MVP emphasizes the main flows, intuitive navigation, and consistent UI components, enabling a quick release without becoming a fragile collection of ad hoc pages.

Post-launch, scalability and reliability take precedence: performance budgets, caching, secure authentication, and clean API contracts. With effective monitoring, CI/CD, and careful architecture, teams can iterate more rapidly while preserving codebase stability as features and traffic expand.