Henry Riehl developed a user-safety feature for the YaLTeR/niri repository, focusing on audio configuration and system settings management using KDL. He implemented a hard cap on audio volume, ensuring it could not exceed 100 percent, which prevents distortion and protects users from excessively loud playback. The technical approach involved updating the volume raise command to accept a limit parameter, enforcing consistent and safe defaults across sessions. This change was delivered as a clean, auditable commit with minimal risk, reflecting careful change management. While no bugs were addressed, the work demonstrated depth in interface design and parameterized configuration within system utilities.