Worked on stabilizing Proton’s Vulkan XR integration by addressing a targeted bug in swapchain image handling. Focused on the Vulkan swapchain image enumeration process, the developer ensured the pNext field was properly initialized to NULL, adhering to Vulkan extension chaining conventions and preventing crashes from uninitialized pointers. This change, implemented in C and leveraging expertise in Vulkan and OpenXR, improved the reliability of VR workloads within the ValveSoftware/Proton repository. The fix demonstrated careful attention to cross-component integration, code hygiene, and robust extension structure management, ultimately reducing crash risk and supporting broader adoption of Vulkan-based XR features in Proton.