To install the layer:
        Take the .json and .so files from the release or from your build.
        Place them in a Vulkan Implicit Layer load directory, such as "~/.local/share/vulkan/implicit_layer.d/"
        This installs the layer, but no game will load it unless instructed via the next step.
To enable the layer:
        Before running the game, set the following environment variable: ENABLE_VK_NULLVRS_1=1
        In Steam, this can be done by right clicking the game, Properties, and placing the following 
in the launch options: ENABLE_VK_NULLVRS_1=1 %command%

I do not recommend setting the ENABLE_VK_NULLVRS_1 envrionemnt variable in any global, system-wide, 
or user-wide environment. I do not know how various anticheats would react to the layer being loaded. 
So, please only use it on a game-by-game basis.