Seems like the intro clears some things: https://gamevau.lt/docs/intro It looks like you install the server component on your NAS/server etc and store your game files/binaries/installers there. Then you can download client applications and download from that location to install on your gaming PC or whatever

I use Arch… On my Steamdeck

Is that a lot? It’s usually between 30-50%. I’ve set it up as my routers DNS server so it blocks ads across my entire network. Everything that connects to my router get pihole ad blocking