Valve has been relatively permissive regarding open-sourcing and liberally licensing some of its properties under the right conditions. See its push for SteamOS and allowing Black Mesa to be sold for profit. However, it might have been a good idea to contact them about this before hosting modified stolen property, even if it was with good intentions. I've got a feeling that this repo won't last too long.
I've never come across it before this post was made. It's only a matter if it catches on or not, just like how tornado cash was there for a long time, until it wasn't anymore
