During February 2025, this developer contributed to the utmapp/gfxstream repository by implementing a software rendering path for DMABUF-based framebuffers. Leveraging C++ and advanced graphics programming skills, they enabled rendering through SwiftShader and Angle, removing the dependency on native GPU hardware and improving cross-platform compatibility. Their approach included emulating DMABUF with OPAQUE_FD to streamline memory management and broaden support across diverse environments. Additionally, they refined Vulkan external memory handle processing to enhance reliability in various rendering scenarios. This work addressed compatibility challenges in virtualized graphics pipelines, demonstrating depth in driver development and a focus on robust, maintainable solutions.