During November 2024, Kyeongyun Song focused on backend development and testing for the microsoft/garnet repository, addressing a critical bug in the server’s HELLO response handling. He improved the protocol by ensuring integers were serialized as integers and other types as strings in bulk format, enhancing data integrity and client interoperability. Working primarily in C#, he updated test expectations to reflect the new serialization logic, particularly regarding newline counts. Although the work centered on a single bug fix rather than feature development, it demonstrated careful attention to protocol correctness and reliability, contributing to more robust API development and server stability.