And maybe somehow a script that rotates the password updating the Kindle.
https://github.com/TeraTech/MMM-WiFiPassword
weather:
https://github.com/jclarke0000/MMM-DarkSkyForecast
Sits on the kitchen counter. Guest password is rotated and the display is auto-updated.
The raspberrypi is running MagicMirror, but I just have it outputting to a small display (7"). Looks great.
I use a Ubiquiti wifi AP and it has an API to change the guest password.
And maybe somehow a script that rotates the password updating the Kindle.