[2716057]

Because the fancy keyboards all support layers, and one key ergonomic principle is to avoid unnecessary finger travel ;)

Default layers on the Dygma Raise 2: https://dygma.com/pages/first-time-using-the-dygma-raise-2

[layer8]

Modifier keys are the main thing that’s causing me RSI in the first place.

[2716057]

Place modifiers on the thumb keys or - if you don't have any of those - use home row mods!

My ranking of measures from most effective to least effective:

1) Do everything you can to minimize workload of weak fingers (pinky & ring fingers). Just flipping control and caps lock is often not enough.

2) Split keyboard; halves roughly shoulder-width apart. Optimize for straight wrists both at rest and "in action". This usually results in zero tilting or slightly negative tilting.

3) Concave designs.

4) Tenting.