It honestly surprises me that the evolution of ergonomic keyboards has been so slow.
Sure, we have plenty of split keyboards now, but we don't have any commercially available DataHand-like designs [1]. Watch someone type with a DataHand you'll see that they barely need to move their fingers at all [2]!
The best similarly ergonomic designs we have at the moment are a gaming keypad [3] and some DYI projects [4].
[1] https://en.wikipedia.org/wiki/DataHand
[2] https://www.youtube.com/watch?v=IrRWTeJ0-Ow
[3] https://www.azeron.eu/
[4] https://github.com/JesusFreke/lalboard see also https://geekhack.org/index.php?topic=41422.800
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On another note, does anybody know how good steno keyboards tend to be for RSI issues in the long run?
I've practiced some steno with a regular keyboard (thanks to plover [5] and Typey Type [6]), but I'd need an actual steno keyboard to continue since I don't have N-key rollover on my current keyboard.
The Georgi [7] seems like a good option and I'd imagine that it would be pretty good for ergonomics since it's a split design and also rather small.
The only problem is that I'd have to learn steno which will likely take quite some time.
Here's a demo of someone writing code with a steno keyboard (54 keystrokes needed vs 143 if you were using QWERTY) [8].
[5] http://www.openstenoproject.org/plover/
[6] https://didoesdigital.com/typey-type/
[7] https://www.gboards.ca/product/georgi
[8] https://youtu.be/Wpv-Qb-dB6g?t=380