I had some RSI and only used laptops with trackpoints, which i found really useful, even essential in my workflow.
Really like the design of the Atreus and even started building one at some point but never finished. This project is my solution to all those things and one more: i use a lot of layers on my Atreus and got stuck in one i rarely use by accident sometimes, the 5 WS2812 LEDs i added solve that by functioning as a layer indicator while also letting the keyboard say trans rights.
If you too would like to upgrade your Atreus in this manner i've made instructions and source files available on my GitLab(see links)
Trackpoing from a 2nd or 3rd gen Thinkpad keyboard
Yesterday i made a proper bracket and screw holes to the atreus so the leds are now held in place by a 3d printed part that also improves diffusion, making the light from the leds melt together and dims the leds enough to have settings other than the absolute minimum actually make sense.
The diffuser layers are about 6mm from the mounting plate and .8mm thick (though that does dim the leds a lot, its fine for me but the repo default is .6mm).
The old, hot glued solution was falling appart and the screws should make it a lot more solid now.
The repository has already been updated and i will add the new photos right after publishing this.