Mikhail Kshevetskiy focused on firmware-level improvements for the ImmortalWRT repository, targeting hardware stability on Mediatek-based Sinovoip BPI-R3 boards. He addressed a thermal management issue by tuning PWM fan control through device tree configuration, specifically adjusting cooling-levels to optimize fan speed during medium CPU activity. Using his expertise in embedded systems and Linux kernel development, Mikhail debugged and validated the changes to ensure reduced risk of thermal throttling and improved system reliability. His disciplined approach to git patching resulted in a cleaner patch history, supporting ongoing maintenance and deployment stability for BPI-R3 devices running current firmware versions.