Wen Ziyang focused on kernel development and system programming in C, contributing to the tiann/KernelSU repository during March 2025. He addressed a reliability issue with the SU compatibility toggle, ensuring that the Disable SU Compat toggle responded correctly when the manager was running and the kernel or another process changed the sucompat state. His solution involved synchronizing syscall responses with the actual kernel state, reducing user-facing toggle failures and improving security by maintaining consistent kernel and user-space interactions. Although he did not add new features, his targeted bug fix demonstrated a deep understanding of kernel-level concurrency and robust system behavior.