i understand a little of what you said above. ^
so who made it and when will it be fixed? Did RUBBERS make it because that's who posted it?
I do not know. I was just shown a 13604 file system. Which is a start, but it is essential to port the patches to reflect changes in the 13604 HV and kernel.
I believe you would also need to modify the builder/firmware to accommodate 13604 correctly.