vulkan-layers : Vulkan Validation Layers ( https://github.com/KhronosGroup/Vulkan-ValidationLayers )
vulkan-loader : Vulkan Installable Client Driver (ICD) Loader ( https://github.com/KhronosGroup/Vulkan-Loader )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a hossie
For Paludis use this rsync : rsync://gentoo.zugaina.org/hossie-portage
If you have a problem : ycarus(-at-)zugaina.org