Developing a Software Development Kit (SDK) is distinct from app development and involves unique challenges and considerations, as exemplified by the experiences of the team at Luciq. Their approach emphasizes scalability, the avoidance of third-party code to reduce complexity, and extensive testing to ensure functionality and reliability. Key practices include prioritizing main thread freedom to maintain app performance, supporting a wide range of devices, ensuring security and privacy, and blending seamlessly with the design of host apps. Additionally, Luciq focuses on simplifying integration and maintaining compatibility with evolving technology, all while providing customizable user interfaces to match the unique design languages of different apps. Through these practices, the team strives to create a robust SDK that enhances app performance and user experience without compromising on security or functionality.