SSH
Setting up openssh on each lab computer will let you set up a simple script to run updates and upgrades.
Guest Mode Setup
Guest Mode creates a temporary environment where the user cannot save things locally on the computer, similar to Deep Freeze for Windows. Here are some helpful links to create and setup Guest Mode for your lab computers: https://help.ubuntu.com/community/CustomizeGuestSession https://andresilva.me/articles/configuring-a-guest-session-on-linux-mint/ https://ihaveapc.com/2019/05/how-to-configure-linux-mint-to-allow-guest-only-access/ https://www.youtube.com/watch?v=XC0JonvTTOk