When I started getting some RSI from coding all day, I looked for solutions. I ultimately settled on a split keyboard (separating the left and right hand more, less cramped in front at odd wrist angles) with a bunch of thumb keys (to act as modifiers, much easier to use than pinkie based mods) and a folding tripod stand for each so i could "tent" each keyboard out at an angle that matched my natural resting hand posture. That and a wrist pad completely resolved any RSI/tension I had.
With QMK, I was able to setup a nice set of keyboard layers for regular use, gaming, and multimedia control. For any keyboard power users, it's a dream! My hands are always in home row and everything is a simple finger movement/chord away.
Link to the build kit I used: https://splitkb.com/products/kyria-rev3-pcb-kit