Worked on the xbmc/xbmc repository, focusing on both feature development and bug fixing within a one-month period. Addressed a settings visibility handling issue by ensuring the visibility state is copied directly from the source setting, which improved both performance and correctness in the settings library. Upgraded the JSONRPC API to version 13.11.0, enhancing client compatibility and enabling support for new features. Utilized C++ for core development, applying software engineering principles and system design skills while managing changes through version control. The work demonstrated attention to both technical accuracy and business value, contributing to the stability and extensibility of the project.