image info lives here: `/usr/share/ublue-os/image-info.json`
image info lives here:
/usr/share/ublue-os/image-info.json/usr/share/ublue-os/image-info.jsonrpm-ostree status and using grep to grab the value?

btrfs balance start --full-balance /path/to/mount
df -h to see how much disk space there actually is
rpm-ostree status