Building a web application begins by outlining user roles, primary scenarios, and the data model. A strong MVP concentrates on essential flows, intuitive navigation, and consistent UI components, enabling the product to launch rapidly without becoming a fragile collection of ad-hoc screens.

Post-launch, scalability and reliability are paramount: 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.