AppExchange has listed following app ISV App Upgrade Scheduler
Now, the documentation (link) attached to this AppExchange listing says, users should go to following GitHub repository for getting to the source code of the app and carry out our own customizations: https://github.com/SalesforceLabs/PackagePush
But this repository is nowhere to be found. If it has been moved then do anyone else have access to it or know the new URL?
I don't know if this is the correct platform to ask this kind of question, but I hope someone could help me here.