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To complete the setup, I needed to move modifier keys (ctrl, alt, mod, shift) away from my weak pinkies towards my stronger fingers. if I tap them I get a useful keystroke (shift, backspace, or delete are all available to my thumbs) and if I hold them I get a modifier, which in this case changes the layer and the key under all my other fingers. These thumb layer keys are "mod-tap" keys in qmk. this mean pretty much all symbols are available to me without my hands leaving home position! this also mean I'm using my strongest fingers (thumbs) for more than just space. ) are under my left hand if these layers are invoked. a different thumb button changes "shift"s the numpad into symbols. While holding a thumb button down, i change the keyboard under my right hand to a numpad.
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With minimal keys, small keyboards require multiple layers. You probably need a mechanical keyboard running QMK or similar to achieve the level of customization I'm talking about, though there may be programs/apps in computers that allow for this. The primary goal is a more ergonomic layout accounting for natural finger movement (vertical columns with minimized horizontal movement), hand shape, and a key/letter layout which also minimizes unnatural movement (again - horizontal) and movement in general. For hardware, I specifically use a corne keyboard, though there are many many other options which would allow for similar use. I moved to an ergo keyboard, with colemak mod-DH key layout, customized for my coding and emacs needs. after some real wrist pain I decided to seriously re-evaluate my typing/mouse ergos realizing I will probably be spending large amounts of time using those tools for the foreseeable future and I needed a sustainable and healthy long-term solution. I will warn you I lumped this transition into a big keyboard change for myself.
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