Thi Nhung Lua Dang worked on the LifeSG/web-frontend-engine repository, focusing on enhancing the reliability of file type detection in the frontend codebase. She refactored the detection logic by migrating from fileTypeFromBlob to fileTypeFromBuffer, which required converting input Blob or File objects into ArrayBuffers before processing. This technical approach, implemented using TypeScript and frontend development best practices, aimed to improve the accuracy of file classification and reduce the risk of misclassification during uploads and downstream processing. Over the course of the month, her work centered on maintainability and robustness, delivering a single, well-scoped feature without addressing any existing bugs.