The way I view it is muscle memory is important because you use the tool so frequently. For the same reason, continuous minor improvements can add up quickly.

The way I view it is muscle memory is important because you use the tool so frequently. For the same reason, continuous minor improvements can add up quickly. People definitely go overboard but I think it’s worth it to experiment a little bit and see if you can gradually optimize some things you do a lot. I’m a big fan of the Ergodox keyboards and having a decent number of layers. For example, holding W turns my right hand into a window manager. Holding F turns my right hand into an app switch (H = Chrome, J = IntelliJ etc). All of this is on/near the home row so it’s minimally straining. Learning curves on new keyboards are awful though!