During March 2026, Kevin Farnung focused on stabilizing JIT shader execution for the google/swiftshader repository, addressing a critical crash scenario on macOS ARM64. He backported dynamic shadow offset logic from LLVM 12+, aligning shadow memory addressing with ASAN runtime behavior to ensure correct handling in JIT-compiled shader paths. Working primarily in C++ and leveraging expertise in graphics and system programming, Kevin introduced platform-specific logic to prevent crashes and improve reliability. His careful review and validation of the backport demonstrated depth in cross-LLVM compatibility, ultimately enhancing product stability and reducing support overhead for macOS ARM64 shader workloads.