Biggissimmo Addon for Factorissimo2 I need help

[TankPlus]

Hello, I was playing with Factorissimmo2 to add 3 new builds that are even bigger in the inside. I was needing some help to convert this into a addon to factorissimmo2 so i could keep the core mod up to date and dont have to add my code every time the mod updates. If y'all have any insight, just let me know how i need to go about it, thanks.
Repo - https://github.com/ChrisYoungPlus/Xustom-Factorissimmo2