Worked on stabilizing Dawn’s Vulkan X11 integration by addressing a macro redefinition risk in the google/dawn repository. Focused on improving build reliability, the developer introduced an include guard around the VK_USE_PLATFORM_XLIB_KHR macro in vulkan_platform.h, ensuring it is defined only once even when external build systems like GN are involved. This change reduced build failures and improved cross-project compatibility, making it easier to integrate Dawn with other systems. The work leveraged expertise in C++, build systems, and cross-platform development, demonstrating attention to detail in resolving subtle integration issues within complex environments involving Vulkan and multiple build tools.