You don't need to use an overlay filesystem (didn't know that was even a supported solution), you can move the rootfs to the usb device and point to it. See htt

You don't need to use an overlay filesystem (didn't know that was even a supported solution), you can move the rootfs to the usb device and point to it. See https://gist.github.com/lucabelluccini/9a11c48dcf1d627bbcbd8213f6de3eae https://gist.github.com/lucabelluccini/9a11c48dcf1d627bbcbd8...