During December 2025, Romain Choffardet focused on backend development for the thomhurst/TUnit repository, addressing a critical issue in the JUnit reporter. He implemented a targeted bug fix to ensure that XML outputs were encoded in UTF-8 rather than UTF-16, directly improving compatibility with continuous integration pipelines and enhancing the readability of test artifacts. Working primarily with C# and leveraging his skills in unit testing, Romain’s contribution resolved encoding-related problems for downstream consumers. Although the scope was limited to a single bug fix, the work demonstrated careful attention to interoperability and stability within automated testing environments, reflecting solid engineering practice.