Developed a Node HID Transport Kit for the LedgerHQ/device-sdk-ts repository, enabling seamless communication between the Ledger Device SDK and HID devices. The work centered on integrating HID communication using Node.js and JavaScript, with a strong emphasis on debugging and observability. Extensive logging was implemented to surface detailed device interaction data, facilitating faster diagnosis and improved monitoring of device connections. The README was updated to provide clear setup, configuration, and troubleshooting guidance, reducing onboarding friction for new users. This feature established a robust foundation for future hardware integrations and enhanced reliability, reflecting a focused approach to hardware-software interface engineering.