Here is the github link to what I am referring to: https://github.com/sheagcraig/yo
I do not understand how to set this app up. I am not sure which file to modify to configure a notification for lets say a macOSX upgrade. I assume after I configure the notification in yo.app I assume I package it and add it to the policy I am deploying the Mac OSX upgrade with, or two separate ones that daisy chain together. I plan on using this notification for all software distribution and macOSX upgrades.