This second post in the Tyr series dives deeper into GPU driver internals by using the Vulkan-based VkCube application to explain how User Mode Drivers (UMDs) and Kernel Mode Drivers (KMDs) work together to execute GPU workloads: https://www.collabora.com/news-and-blog/blog/2025/08/06/writing-a-rust-gpu-kernel-driver-a-brief-introduction-on-how-gpu-drivers-work/