This looks pretty unique: https://geekhack.org/index.php?topic=109533.0
I like the idea of a bluetooth window.
Mechmerlin had a youtube video on this as well: 5 Mechanical Keyboard Interest Checks 01/08/21 - YouTube
The Bluetooth window doesn’t really look big enough to be effective to me, but idk if you’re just going to use it at a desk maybe it will work fine
Makes sense, should be good enough for the wise that leave their PCs on the desk. 
1 Like