Building a web application begins with defining user roles, principal use cases, and the data model. A solid MVP concentrates on essential flows, intuitive navigation, and consistent UI components, enabling rapid shipping without turning the product into a fragile collection of isolated screens.

Post-launch, scalability and reliability become the top priorities: performance budgets, caching strategies, secure login, and clean API contracts. With proper monitoring, CI/CD, and thoughtful architecture, teams can iterate faster while keeping the codebase stable as features and traffic grow.