Great work, annoyingly i am having a few teething issues with getting this working mainly; running rpi4
mount -o loop,ro,offset=50331648 -t ext4 2018-11-13-raspbian-stretch-full.img x
only gives me
mount: mounting /dev/loop1 on x failed: Invalid argument
(this is following the instructions) running latest libreelec (though i wonder if some stuff are out of date as even unzip was having issues) any advice would be appreciated!