How to encrypt with LUKS a live Ubuntu usb stick that has been customized with Cubic? [migrated]

I’m using Cubic (https://github.com/PJ-Singh-001/Cubic) to create a custom Ubuntu. So far so good, everything is going smoothly.
However, I would like to encrypt the USB stick that contains my custom Ubuntu image so that I:

boot usb (load… Continue reading How to encrypt with LUKS a live Ubuntu usb stick that has been customized with Cubic? [migrated]