MangoHud is a Vulkan and OpenGL overlay for monitoring FPS, temperatures, CPU/GPU load and more. MangoHud may be built with access to Nvidia's NV_Control X extension. This introduces a dependency on libxnvctrl and may be included by passing XNVCTRL=enabled. By default, MangoHud reaches out to the internet to pull Vulkan-Headers. Since Slackware ships with vulkan-sdk, we enable system headers by default. To disable this feature and restore default behavior, pass SYSVULKAN=disabled to the build script. This SlackBuild defaults to building mangoapp as well. To disable this behavior, pass MANGOAPP=false to the build script. This removes the dependency on glfw3 and nlohmann_json's include.zip If you would like multilib support, pass COMPAT32=yes to the build script. Please note that this only adds 32bit support for mangohud, NOT mangoapp.