I'm a Dvorak user and was seriously considering switching to Colemak just for the Caps locks to backspace feature as I'm always having to reposition my hand on the home row after correcting a mistake. After a couple of days of my brain hurting, I figured it wasn't worth it. As someone once said, going from Dvorak to Colemak is like moving next door to reduce your commute. :D
Anyway, I found what I was looking for in my Plasma system preferences. I had no idea it was even there myself so I figured I'd share in case anyone else was unaware of how easy it is to get this. I don't know if it's available in other desktop environments or OSes.
In KDE Plasma, look under the advanced tab in the keyboard settings. Was this option inspired by Colemak?