Olaf Baehring focused on improving device initialization stability in the flipperdevices/u-boot repository by addressing a reliability issue in the CAAM random number generator. He resolved startup failures by adjusting the driver’s cache management, moving cache invalidation for the output ring to immediately follow hardware notification. This change prevented descriptor lookup failures during hardware initialization, resulting in more reliable cryptographic hardware operation. Working primarily in C, Olaf applied his expertise in embedded systems and driver development to deliver a targeted bug fix. The work demonstrated a deep understanding of low-level hardware interactions and contributed to the robustness of the device’s startup process.