Nah, i actually just started out with 3D printing. All i did was take the design from here, remove everything except the outline, make some light tweaks and use the final image as a displacement texture in blender. You could pretty easily do this with any image, and seeing how much people like this one, i'll probably make some similar stuff in the future.
Seriously, those sections with the author's children exlaining the simulation to Niko were what really made OneShot for me. Most devs are afraid of putting a lot of text anywhere but in the right place it can be a wonder for worldbuilding.
The background is made from a plain purple color with added HSV noise. Then an effect is added on top of everything by copying the entire image into a new layer and applying a convolution with a kernel like this:
The specific os doesn't really matter, just get one that runs a lightweight WM. Whatever you pick, make sure you enable Zswap on it to really squeeze every bit of performance out of that ram.
This should work: https://www.makeronline.com/en/model/DO%20NOT%20TALK%20TO%20COMPUTERS/252643.html