Root is interesting. I want it to be able to more easily develop on the device, mount loop filesystems, etc. But I think it would be acceptable to have a contai

Root is interesting. I want it to be able to more easily develop on the device, mount loop filesystems, etc. But I think it would be acceptable to have a container or chroot with a restricted root user and possibly shared storage accessible through a bind mount. Maybe installing images could be supported through a self-signed key and fastboot. Is there anything device-wide root is needed for on modern Android?