Worked on the DivinumOfficium/divinum-officium repository to enhance the accuracy and reliability of French Psalter and psalm texts by correcting typographical and grammatical errors across multiple files. Focused on documentation and text editing, the developer applied targeted textual updates using traceable, atomic commits with clear messages to ensure maintainability and auditability. All changes were made directly to text resources, improving the quality and readability of liturgical content without introducing new issues. By standardizing and updating French-language files, the work strengthened content quality assurance and localization reliability, supporting future validation and fostering greater user trust in displayed religious texts.