The open source / open hardware offerings from Ploopy are very attractive for people that don't want to take this route

https://ploopy.co

They've apparently suspended shipping to the US, though. Not sure who to blame for that one..

I was using a vertical Logitech mouse but was still experiencing discomfort mousing out to the side of my enormous Advantage2 keyboard. In an effort to head off any compounding RSI issues, I switched to a ploopy Adept trackball. Had no idea if I'd like switching to a trackball, and I love it! My hand never moves in an awkward motion, and mousing has become pretty restful. Better be careful tossing the ball up in the air idly during meetings as I won't be able to get a replacement if ploopy has paused shipping to the US (It's a pretty dumb habit at any rate).

Just in case you're not really into the whole mechanical keyboard scene:

QMK, or Quantum Mechanical Keyboard, is an open-source, community-centered configuration tool for keyboards and other input devices. QMK software is handy for creating layers, moving around specific keys, adding functions, etc.

TL;DR Is US continues to change policy without any clear guidance nor facilitation. Impractical to comply. https://apnews.com/article/us-tariffs-goods-services-suspens...