Eugene Ang focused on improving the stability and reliability of power management in the Samsung/TizenRT repository by addressing a critical deadlock risk in multi-core environments. He revised the low-level C code to ensure that only Core 0 manages the g_system_timer, removing cross-core code paths that previously introduced potential deadlocks during power-management handling. By reverting SMP systick ISR changes in the power management path, Eugene simplified the timer subsystem and improved maintainability. His work in embedded systems and real-time operating systems resulted in cleaner, more robust code, reducing runtime deadlock risk and supporting more reliable production deployments on multi-core targets.