I've made the source code and the source files for the 3D printed parts available to download from this page. Source code is licenced under GPL 3+, and the 3D part files (OperSCAD) are under CC BY-SA 4.0. There are more details on the page.
One other thing that I want to do is a demonstration video, however I have recently discovered that I suck at making videos, so that part is taking longer than I had hoped. I want to try to produce a good video rather than one of those videos where someone turns their project on, waves it in front of a camera and doesn't say anything.
Finally, up until now, the "In Your Pocket" part of this project has been "Citation Needed", so let me fix that: