Proton TKG support

[GrabbenD]

I love using Proton since it bundles libraries such as Wine, DXVK, VKD3D-Proton and Mono into one runtime which can be used outside of Steam:
https://gist.github.com/brunoais/575db9912368124d3223784afe20158c
https://github.com/caverym/proton-caller

Steam games can even be played without the Steam client (to avoid lib32 bloat) with this:
https://github.com/ValvePython/steamctl
https://github.com/dmadisetti/steam-tui

To tie all of this together, Proton-TKG makes it very easy to build Proton with all latest upstream code and patches:
https://github.com/Frogging-Family/wine-tkg-git/tree/master/proton-tkg

This makes me wonder, how would you use this project with Proton-TKG?