The Single Responsibility Principle: The Cornerstone of Scalable Web Architecture

The article argues that the Single Responsibility Principle (SRP) is the most important architectural decision in web development, as violating it creates 'change magnets' that cause merge conflicts, deployment issues, and cascading failures. SRP naturally promotes testability, replaceability, and clear separation of concerns across services, schemas, and frontend components. The author emphasizes SRP as a practical foundation for scaling both traffic and team size, not merely a theoretical ideal.