This is a screenless computer, meant to be used with XR/AR glasses or an external display. The Steam Deck motherboard goes in a 3d printed housing underneath the keyboard, giving you a keyboard that only needs to be connected to a display for a portable computer set up.
Here’s the hacker news discussion on it, includes comments from the creator of the project
I would also like to know. I’ve been eyeing the XReal glasses, but they’re a bit expansive, and I don’t have anywhere in my country to try them out. If they could work for my job for ~8 hours of work, I would definitely buy them