How to load an extension into the extension manager

Am trying to figure out how to load an extension from github into my raspberrypi - for me to enable it in Roon. But can’t seem to find my way around things. Any help - or guidence would be great :slight_smile:

I’m trying to load the McIntosh extension - onto my dietpi, and I’m assuming that once the files are loaded there - in a particular directory, that they’d be read by the system, and visible for me to enable via the Roon remote.
My roon extension manager was installed directly from DietPi software library - option 86. Already have a USB to serial 3.5mm connected. Now just keen to see whether it works or not.

Thanks,