For example, I'd think about reclaiming the top row, where the numbers live. On keyboards with a numpad, they're passengers. At the very least, invert the meaning of shift, so the default is to produce sigils.
I mean the next step IMO is to borrow inspiration from some computer game peripherals and allow buttons to be physically laid out in a different way.
For example, I'd think about reclaiming the top row, where the numbers live. On keyboards with a numpad, they're passengers. At the very least, invert the meaning of shift, so the default is to produce sigils.