DEPNotify runs as a native macOS window and can be easily controlled via a text file. If asked it will automatically show all policies and installations done by Jamf as they happen.
It's also very simple to have DEPNotify change it's images, text and progress bar in the window. You can also have DEPNotify show user notifications and force the window to the front.
DEPNotify is entirely controlled via writing out "commands" to a text file one line at a time. This allows for complete admin control of exactly what's being displayed by DEPNotify at what time.