I'd like to design a small PCB that has the same form factor (note the PCB is 0.6mm thin for a total package height of 1.9mm) as the Tomu and has similar functionality, but i'd like it to be Arduino based. I'm thinking a processor like ATSAMD21.
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Find all of the schematics and project files on the Github.
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I also want to have physical tactile buttons instead of the touch sensitive button. I think 2 or 3 side buttons would sit nicely on the edge of the PCB to easily press. (LS12T2-T)
For the boot/reset button i'd like pads instead of a button.

Its important that its as small as possible. Preferably just the buttons will sit outside of the USB port.

I'd also like a copy of the project files. I'd like to be able to open these files in a free software like Kicad.

Thank you!