Developing a web application begins by outlining user roles, essential scenarios, and the data model. A solid MVP emphasizes core flows, intuitive navigation, and consistent UI elements, enabling rapid delivery without becoming a fragile collection of ad-hoc screens.

Post-launch, scalability and reliability are paramount: setting performance budgets, caching strategies, secure authentication, and clean API contracts. With proper observability, CI/CD, and thoughtful architecture, teams can iterate more rapidly while keeping the codebase stable as features and traffic expand.