I was asked whether I'd be willing to share the design files. Yeah, why not... If you're interested in having a look at the different PCBs - including the panels - head over to my GitHub repository linked on the project page. Those were designed in KiCAD v7.

I generated the interactive BOM html files with an absolutely awesome KiCAD plugin written by qu1ck:

• Mainboard: HTML Preview of interactive BOM
• UI board: HTML Preview of interactive BOM
• Power Supply Board: HTML Preview of interactive BOM

I plan to release relevant parts of the code as well, same repo.

You're under no obligation to do so, but if you actually consider building this or a similar device, I would be happy to see what you did with it and maybe how you made it better.

Also, if there are aspects that you'd like more information about, please let me know.