-But it's less pain than trying to turn a generic Android tablet into something more like a kiosk, best I can tell (there are third-party apps that do this, which survives reboots, I'm led to believe, but I'd rather not mess with third-party stuff). I previously made Android apps in Java for the tablets, and while I enjoyed the fragment system it uses, the permissions handling was always a nightmare whenever I wanted to do something neat or experimental -- TTS and mic listening in a PWA makes me much less frustrated than trying to do it via native app (which seems backwards to me), and I can still use the website on any non-Android device.