What arlort says: ASDF and jkl; both have the home row modifier behavior, so you can hit any combination as long as you have both hands on the keyboard. So Ctrl

What arlort says: ASDF and jkl; both have the home row modifier behavior, so you can hit any combination as long as you have both hands on the keyboard. So Ctrl+shift+a is pressing and holding k+l and tapping a. Holding d+f and tapping a would also work, but it would be uncomfortable. Miryoku[1] is a popular layout in this style and was my starting point, but I think it's often customized. The "both hands on the keyboard" thing is a major caveat. The key I use to switch to my navigation layer (arrows, paging) is on my left hand and it also runs all of my non-home row keys into Ctrl modified versions of themselves. This allows me to type almost any Ctrl combination while mousing that you could type easily with only your left hand, with the exception of Ctrl+D because I have D mapped to control (I use super/alt/Ctrl/shift). I only use Ctrl+D in the terminal, so I had no need to resolve this limitation. Is all this worth it? Honestly it's hard for me to say yes, but I also find using a qwerty keyboard uncomfortable now. Plus the keyboards are cool. [1] https://github.com/manna-harbour/miryoku https://github.com/manna-harbour/miryoku