It's all about hardware. I've addressed it quite well with a three-pronged approach:
1. Motorized standing desk - typing from varying postures keeps strain spread out
2. Kensington trackball mouse - less hand sweeping / temptation to drags wrist on table
3. Ortholinear "Planck" keyboard - modifier keys accessible via thumb and programmable layers more generally can completely eliminate painful hand poses and keep fingers on the home-row