>>33
Really this whole thing has come very close to existing before. The original Kobo reader for example didn't have wireless, could be rooted, and iirc could USB OTG a mechanical keyboard. Libraries already have such kiosks in a way, if you're willing to assess https://libgen.rs on a government computer, and connect via USB. There are even hobbyist who create software and hardware for (nearly) these purposes as it's a relatively tractable problem!