说明：  作为应用程序的架构师，我无缝地使用面向协议编程（POP）来设计系统。这涉及到创建API、细化数据模型和编排无缝交互。
(As the architect of an app, I seamlessly employed Protocol-Oriented Programming (POP) to design a system. This involved crafting APIs, refining data models, and orchestrating seamless interactions.)