Yeah, this is frustrating. There already has been a good tool for Windows for a while now called Colour Simulations that I use at work, but I am really wanting for a Linux compatible tool for my home use too.

I switched to Colemak-dh about 2 year ago when I bought a ZSA Moonlander after getting a terrible case of rsi in my left wrist. When I type on other keyboards (which I try to avoid whenever possible) I still use qwerty. Curious thing, I write at about 70 wpm with 99% accuracy with colemak-dh on my Moonlander but I can’t pass 10 wps when using colemak-dh on other keyboards, and I have no hope in hell writing with qwerty on the Moonlander at all. The motor memory is completely decoupled between the split keyboard and the non-split keyboard. Which I guess is good, since then when using someone else’s keyboard I won’t have issues using their keyboard.