Well, i did get my S7 from the e.shop, so I won’t be going around the project’s intentions 
But it does not allow me to install the image from @andrelam’s post to be installed via TWRP:
“Can’t install this package on top of incompatible data. Please try another package or run a factory reset.”
I had upgraded to 0.14-o-dev before trying.
Does anybody have an idea about what could be going wrong?