One of the more ludicrous (but delightful) boards I was given at #Supercon was this one - the CapKey. It's a capacitive-touch keyboard the size of a keycap.

Would tag the maker, but can't seem to find him!

It's mounted on a ESP-S3 that is programmed to show up as a HID keyboard. Board and code here: https://github.com/illumneo/capkey
GitHub - illumneo/capkey: An entire capacitive keyboard in the size of a key (+ larger options!)

An entire capacitive keyboard in the size of a key (+ larger options!) - illumneo/capkey

GitHub
@grajohnt Wow, how do you select the difference characters?!?
@ai6yr tap for the big ones, swipe for the smaller ones - so "B" is swiping O-R.
@grajohnt Oooh, interesting!
MessagEase - The Smartest Touch Screen keyboard

@grajohnt I NEED IT.
@fabi1cazenave KiCad files are in the response link!
@grajohnt I saw that. This world needs more keyboard nerdiness. 🙂