I don't want this exact thing, but I do want something similar. A device where I can wander anywhere around my property with keyboard slung on my shoulder and j

I don't want this exact thing, but I do want something similar. A device where I can wander anywhere around my property with keyboard slung on my shoulder and just plop down and work, with as many monitors as I want, no mouse required. I'd like a lighter, more breathable version of this.