Alain Miniussi enhanced the build system for KhronosGroup/Vulkan-ValidationLayers by introducing optional X11/xrandr support, focusing on improving build stability and cross-environment portability. Using CMake, Alain implemented a new configuration option and conditional compilation path that allows the build process to gracefully handle the absence of the xrandr extension. This approach prevents build failures on systems lacking the extension, reducing environment-specific issues and broadening compatibility across various Linux desktops and CI environments. The work demonstrates a pragmatic application of build system and dependency management skills, resulting in more maintainable and portable software builds within the Vulkan-ValidationLayers repository.