In July 2025, Luxu contributed to the geerlingguy/linux repository by enhancing virtualization support for RISC-V KVM. He implemented a kernel-level change in C that delegates illegal instruction faults to supervisor mode by default, reducing the frequency of guest fault traps during vector-heavy workloads. This approach allows user threads to continue execution after the initial fault, improving latency and reliability for virtual machines running on RISC-V architecture. Luxu’s work focused on kernel development and virtualization, aligning with broader goals for stability and performance. The feature was validated for impact and prepared for integration, demonstrating depth in low-level systems engineering.