Worked on modernizing the TEI encoding for Les Caractères in the UBS_M1_TEI repository, focusing on standardizing metadata and enhancing editorial workflows for digital humanities research. Leveraged XML and TEI editing skills to enrich the TEI header with edition and character declarations, improving metadata quality and supporting reproducible research. Introduced semantic tagging, including refined person-name references and textual variant encoding, to increase discoverability and scholarly precision. Enhanced editor information, title structuring, and encoding consistency to streamline editorial processes and reduce manual intervention. The work laid a foundation for interoperability with downstream scholarly tools and improved searchability for end users.