During July 2025, this developer expanded hardware support in the zephyrproject-rtos/zephyr-testing repository by enabling nRF54lm20a compatibility for Bluetooth sample applications, specifically the beacon and peripheral_hr examples. The work involved updating YAML-based configuration files to integrate the new hardware target, allowing comprehensive testing on the nRF54lm20a platform. Leveraging expertise in Bluetooth, embedded systems, and RTOS, the developer ensured that the changes were traceable and reproducible through well-documented commits. This contribution improved cross-platform validation for Bluetooth samples, reduced integration risk, and enhanced the overall readiness of the Zephyr ecosystem for new hardware platforms without introducing any bug fixes.