the build script is a slightly modified version of the one Tiros/Gli posted, it replaced (if found) 9230 with 9188 and patches the fusecheck inside CB_B
Certainly not something new and certainly not a breakthrough, actually that's what xeBuild did a week or two ago.
You didnt' understand a thing about it... if you are on 14719 with no previous dump or cpu key (trinity slim) and you want rgh this build.py works, old version was working only with 14619 or lower...