Support FDE (Full Disk Encryption)

[kvuj]

There are 2 ways others are doing it:

• PostmarketOS uses their pmbootstrap tool. This relies on Alpine being so small so I doubt we can use it.
• Mobian flashes an installer on the device (calamares).

Here's the link for the debos recipes of mobian. Support for FDE was very recently added.

Both of them uses postmarketOS' osk-sdl.

[e-minguez]

Archarm uses a script to build the image directly, so you plug your phone to the computer using jumpdrive and run the script https://github.com/dreemurrs-embedded/archarm-mobile-fde-installer