Radek developed multi-bus support for the CAN Printer tool in the commaai/panda repository, focusing on enhancing diagnostics and telemetry across embedded automotive systems. He refactored the can_printer component to distinguish messages by both address and bus, updating the printing logic to display bus-specific information and enabling comprehensive logging for all CAN buses, including CAN3. This work, implemented in Python and leveraging his expertise in CAN Bus protocols and embedded systems, addressed the need for accurate message handling and faster troubleshooting within complex vehicle networks. The feature delivered deeper visibility into CAN traffic, improving the maintainability and reliability of the diagnostic workflow.