Worked on the Homebrew/brew repository to improve reliability in the Homebrew Services module, focusing on backend development with Ruby and systemd integration. Addressed two key bugs by refining the cleanup process for unused service files and correcting formatting in systemd timer units, ensuring safer and more predictable service management. Collaborated with maintainers to align timer formatting with systemd standards, updating tests to verify these changes and enhance overall stability. The technical approach emphasized precise file path handling and robust test coverage, resulting in fewer systemd warnings and a more maintainable cleanup workflow within the Homebrew Services infrastructure.