Hello, Brett is no longer with LunarG and I'll be making updates to his ITP bug submissions about the status of these packages.
The current status for the lunarg-vulkan-layers package is that it has been out for 1+ years now and is hosted by LunarG. I am LunarG's curator for these packages, please check https://vulkan.lunarg.com/sdk/home under the "ubuntu packages" tab for more information about our repository.
