The documentation takes the form of this Steam Community "Guide":
https://steamcommunity.com/sharedfiles/filedetails/?id=3259278773
FIRST: Login as "root" or some "sudo" privledged user.
SECOND: Download and run the "prepare-debian.sh" script:
wget -O prepare-debian.sh https://github.com/Mecha-Weasel/wgasm/raw/main/prepare-debian.sh;wait;
chmod +x prepare-debian.sh;
sudo ./prepare-debian.sh --nike;
THIRD: Login as the "game-servers" unprivledged user.
FOURTH: Run the "install-wgasm.sh" script:
wget -O install-wgasm.sh https://github.com/Mecha-Weasel/wgasm/raw/main/install-wgasm.sh;wait;
chmod +x install-wgasm.sh;
./install-wgasm.sh --nike;