I use an old phone as a camera for my 3d printer as well. They can also be used to run octopi provided they have otg usb

You can have internet over bluetooth, both as a hotspot and as a tether, maybe that’s the thing?

Although i like the numpad, the wasd + mouse position (which i use even in work a lot) hurts my arms because of my small build. So its either separate numpad or none at all

At least Apple now dropped lightning, so thunderbolt is all we’ll have going forward