This post explores the application of the last three S.O.L.I.D. principles—Liskov Substitution Principle (L.S.P.), Interface Segregation Principle (I.S.P.), and Dependency Inversion Principle (D.I.P.)—in building a robust React Task Management application. It discusses structuring components and hooks to enhance flexibility, modularity, and testability. The post also offers insights into evolving a basic project structure into a more scalable and maintainable codebase.