During April 2026, this developer enhanced the arduino/library-registry repository by adding a new HLK-LD6004 library entry, expanding the available resources for Arduino developers. The work focused on improving library discoverability and supporting integration of HLK-LD6004 into a wider range of projects. Utilizing skills in Arduino development and library management, the developer coordinated with open-source contributors and followed Git-based workflows to ensure smooth registry updates. The contribution was implemented in plaintext, aligning with the repository’s standards. No major bugs were reported during this period, reflecting a focused and well-executed approach to library registry enhancement and resource expansion.