This project has been purchased by Beeper, please contact them with any questions about licensing.

No, Beeper apparently paid the dev to use the code.

I had Fedora with the surface-linux kernel running for a while and at some point an update broke everything, including the touch pad.

The Surface isn't a great Linux device, unfortunately.

I'm using VSCode+OpenSCAD, FreeCad and OrcaSlicer (or BambuStudio if you just have a Bambulab printer) on my Linux box.

You can use the same tools on Windows and Mac btw, so no change in your work flow if you ever need to switch devices.