One strategy: https://ultimatehackingkeyboard.com/product/trackball https://ultimatehackingkeyboard.com/product/trackball although not yet shipping. I put a tr

One strategy: https://ultimatehackingkeyboard.com/product/trackball https://ultimatehackingkeyboard.com/product/trackball although not yet shipping. I put a trackpad to the left of my keyboard and taught myself to mouse with my left, as well as right, hand, and it's been a big improvement. Right hand is still stronger but my left hand is now functional for many tasks.