While scouring the Twitter world yesterday, I came across a very interesting modification someone had made. Twitter user @MComandon had found and created a way to use a Raspberry Pi Zero W hot-spot to create a LAN network, without being connected to the internet, for multiplayer gameplay!
If this is accurate and working, we could have a way to have LAN setups wherever we go! MComandon built this hot-spot using this Instructables guide and connected it to a solar power bank!
He did also mention to disable the wpa_supplicant service if using a device with only one WiFi chipset, which does include the Steam Deck.
This seems too good to be true, but if all is correct, which I am hoping it is, this could be a fantastic next step for what the Steam Deck can achieve!