Welcome to the forum. You have a good friend.
This is a terrible idea, in my opinion. If you spend a few minutes considering the security implications of automating the building of packages that are submitted by… well, pretty much anyone, you will probably come to that conclusion, too.
With the Chaotic-AUR, all the dangers of using 3rd party repos are present, but greatly amplified in the absence of human oversight.
Of course, it’s your computer, and it’s not my place to tell you what to do, only to warn you and anyone else reading this.