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Learn why grouping code by feature instead of technical layers (controllers, services, repositories) improves scalability, maintainability, and developer experience in modern software architecture.

An Orchestrator is a class (or module) responsible for coordinating multiple responsibilities by delegating tasks to other services or components. It does not implement logic itself — it uses others to get the job done.

Learn the Interface Segregation Principle (ISP) with real-world TypeScript examples. Identify bad interfaces, refactor for flexibility, and build scalable, decoupled, and testable applications with ISP from SOLID principles.

Learn the Interface Segregation Principle (ISP) with real-world TypeScript examples. Identify bad interfaces, refactor for flexibility, and build scalable, decoupled, and testable applications with ISP from SOLID principles.

Learn the Liskov Substitution Principle with real-world TypeScript examples. Identify bad practices, apply LSP properly, and write scalable, testable, and maintainable code by mastering this SOLID principle.