During April 2025, work centered on improving user-facing validation within the Radarr/Radarr repository. The developer addressed a critical bug by correcting a typographical error in the IMDb List ID validation message, ensuring that the message now accurately describes the accepted formats for both List IDs and user watchlists. This backend development effort, implemented in C#, enhanced the clarity of configuration feedback and reduced the likelihood of user misconfiguration. By focusing on validation logic and maintaining a targeted, low-risk change, the developer contributed to a more reliable user experience and helped decrease potential support requests related to IMDb list configuration errors.