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Twidlette chordset
The idea for the Twidlette is to use the thumb only for modifiers like shift, alt, esc, ctrl, number-pad and use the fingers for everything else.
Here is the proposal
pinky gets 1 key, each other finger gets 2 keys which can be pressed either seporatly or together. This gives (2x3x3x3)-1 unique chords or 54 unique chords on the fingers. The finger buttons would look something like this:
♦♦
♦♦
♦♦
…♦