Possibly Useful: ProtoArc Foldable Bluetooth Keyboard fits perfectly on a rack shelf

[GideonWolfe]

I have this keyboard: https://www.protoarc.com/products/xk01-plus-backlit-foldable-keyboard

I noticed that it slides in perfectly onto one of the shelves that comes with the Rackmate cases. There's a tiny bit of friction but overall a good fit. If someone designed a drawer that slides out, it could be a cool IU keyboard.

The dimensions of this version seem the same and has an included touchpad https://www.protoarc.com/collections/all-products/products/xk01-tp-foldable-keyboard-with-touchpad

It also has buttons for switching between bluetooth connections, so you could pair it to multiple Mini-PCs in a rack