Doable, but if chromium is minimised, you will still see a window manager/background.
I would recommend using a lightweight window manager, like
openbox with an empty menu file
~/.openbox/config/menu.xml, so a user cannot active any programs.
- Install a window manager
- Configure window manager settings (blank config so no other programs can be activated)
- Configure auto login at boot
- Configure X server to start on login (add
exec startx to
- Add window manager to
If you need to update the Pi, you can
Ctrl+Alt+Backspace to get back to the terminal,
root, update etc.
Be sure that
xorg is configured to allow
Option "XkbOptions" "terminate:ctrl_alt_bksp"