Vincent Prigent focused on improving data quality in the ghostty-org/ghostty repository by addressing a bug in the URL extraction pipeline. He enhanced the regular expression used for parsing URLs, expanding its coverage to handle additional edge cases that previously led to incorrect extractions in real-world data. Working in Zig, Vincent applied his expertise in regex, string manipulation, and testing to deliver a targeted fix that increased parsing accuracy without introducing unnecessary complexity. The work was delivered as a single, well-documented commit, demonstrating a precise and thoughtful approach to code quality and maintainability within a short, one-month engagement.