Speaking as an idiot, it would be great if there were, but I haven’t seen one. Mike’s instructions are good (because I was able to follow them):
(Just scroll down to where it says “Install:”)
I think I found I had to install Xcode, homebrew, and git before moving along to installing the extension. (This is all under MacOS.) Xcode is a regular install from the Mac App Store; everything else requires a trip to terminal land, but you can pretty easily find instructions for the prerequisite installs via Google.
With all my new-found expertise 
, it’s occurred to me that it might be smarter to install @Jan_Koudijs’s Roon Extension manager as one’s first extension. I intend to give that a go this weekend, time permitting.