Hey Randy,
To be honest, I’m not very proficient at using GitHub for that purpose.
I’ll use it to apply a couple small tweaks here and there.
But even when a minor release comes along I use a file comparison tool to see the changes.
I really don’t think it would be practice for you. It’s a matter of comparing the previous osTicket with the new one, spotting the differences and then migrating them into osTicket Awesome’s codebase, which is significantly unique. It usually takes me about an hour for a minor release.
In a perfect world I suppose I would offer a full version for new users and an upgrade patch for existing ones. Although the thought of having more files to manage makes my head spin, it’s an interesting idea for future consideration!