
Spoiler:

Crazy idea 1: double wireless 2-piece ergo keyboard A two piece keyboard is of course a good idea. What i like less is wires. Fortunately some (ready made or DIY) keyboards start having Bluetooth for connection to the computer. I want to take it one step further: no wires to the computer AND no wire between the 2 parts. So, both parts will need a battery. I imagine 2 bluetooth connections: one between the keyboard parts, and one with the computer. I've dubbed this double wireless. Does it exist? Links? Is it doable?
Crazy idea 2: one of the keyboard pieces is also the " mouse" Sometimes I have/want to use a mouse, despite the tiling wm, keyboard shortcuts, Vimium and so on. And I like the mouse better than trackpads or trackpoints. How about using one of the keyboard parts as a mouse? Maybe make a grip on that part. When you want to mouse, you take the grib in in your hand (mouse function: on), you move the keyboard/ mouse, and when u let go of the grip the mouse function = off, so that small movements of the keyboard won't send mouse commands).
Thanks in advance for all responses