Andrey Butok delivered a targeted refactor of Bluetooth test configurations in the kholia/zephyr repository, focusing on the smp_svr sample. He improved configuration management by relocating Bluetooth harness and tags from a shared common area directly into the relevant Bluetooth test cases, using YAML to ensure precise mapping of settings to test suites. This approach reduced the risk of misconfiguration and enhanced both maintainability and readability of the test setup. Andrey’s work enabled faster iteration cycles and more accurate validation of Bluetooth functionality, demonstrating a methodical application of configuration management principles within a complex embedded systems testing environment.