If there was a way to attach a battery to this, and possibly an external speaker, this would be a pretty cool setup for a notetaker for the blind. We had talki

If there was a way to attach a battery to this, and possibly an external speaker, this would be a pretty cool setup for a notetaker for the blind. We had talking and braille notetakers (basically our equivalent of PDAs), years before the rest of the world heard about such devices. They've been falling out of fashion lately, mostly because they're so expensive, compared to cheaper but slightly worse alternatives like laptops. If we could make one based on a Pi 400, though, it would probably be way cheaper than anything else on the market, and way more powerful, considering we can put Linux on it.