One could make a mini-itx computer, connect a battery to it like a UPS perhaps the size of a laptop battery.. But then for screen and keyboard, how hard would it be to connect a laptop to the mini-itx ...
NexDock lets you easily add a 13-inch external screen, keyboard and trackpad to your iPad or iPhone 15 and make them even more useful. Plus, there are bonus features: The all-in-one accessory ...