Custom metal Calculator build

[KF6GPE]

Not a build project, and not 100% metal, but if you just want to get something to hack on that’s put together pretty well, check out the line of handhelds from Planet Computers. They’ll run Android or Linux (or dual boot), and have pretty good querty keyboards (Psion-style). That’ll get you a whole bunch of computing options.

They’re not cheap, but they’re not prohibitively expensive, either, especially if you get a Gemini with just WiFi.

I’ve had good luck running Python in termux on one for reasonably meaty computation. My son has one he’s dual-booting to Linux he likes a lot.