For Info, as I thought it may be of interest to people on here.
I've just a tweet about this:
https://twitter.com/TubeTimeUS/statu...50249141317632
Where they've recently published all the details here:
https://github.com/schlae/replica-datanetics
It seems they used a KiCad plug-in, for the originally produced by hand retro-look curved tracks. Although the use of an ATMega uC won't be very retro (but I assume the originally used IC(s) are now difficult to obtain)
And also some discussions on their use of 'Water Slide Decals' on the Keycaps:
https://twitter.com/TubeTimeUS/statu...93910271270913