Measured my thumb's swiping arc and designed a split keyboard specifically for my hands. Managed to get every symbol in there with no layers. Now I just need to save up some money and order protypes so I can get a feel for the switches. Can't move forward until I've perfected the keyboard.
If you built one of those you were automatically the DJ after school, at the skate park, etc. You better believe those SLA batteries were heavy.
Any real world examples? I don't think that's plausible from a RFI, power, heat, or just plain fragility perspective even with the cheapo hobbyist instruments suitable for kitbashing and only energizing a couple of instruments a time.
Take a look at this one:
https://hackaday.io/project/174301-raspberry-pi-sdr-cyberdec...
Or this one:
https://hackaday.io/project/192016-the-obsium-cyberdeck
Or take a look at what saveitforparts does on youtube
This fad is more about making custom cases for hardware.
They once existed (see Sony Vaio P 2nd gen; coolest thing in the universe) but modern OEMs no longer have such taste.
The keyboard is surprisingly usable, although of course nowhere close to that of a laptop, but still usable for short periods. I got a fully fleshed out Arch gaming setup (manual install) and I use it on a regular basis like a Steam Deck and just a portable dev/test machine at work.