1.6 GB, extracts to a 25 MB boot.img, 31 MB recovery.img and 4.7 GB system.img.The boot.img and recovery.img are stock, but patched to make encryption optional and disable verity because I didn't want people accidentally losing all their data or being unable to boot due to unexpected encryption process.The system.img is a sparse ext4 image, it should not be dd'd. It is completely stock, unmodified.All of them should be flashable through TWRP's [Install] -> [Flash Image] feature.