In March 2026, Leputz contributed to the freeCodeCamp/freeCodeCamp repository by developing a feature that standardized daily coding challenge download filenames, enhancing consistency and user experience. Leveraging JavaScript, TypeScript, and frontend skills with React and Redux, Leputz introduced a dashedName-based naming scheme so downloaded files follow the predictable 'challenge-X.txt' format. This involved updating client-side logic to ensure filenames matched expectations across different environments, reducing ambiguity and user confusion. The work improved the maintainability of the download workflow and aligned with project conventions, demonstrating a focused approach to end-to-end testing and frontend development within a collaborative open-source context.