The debate for a tool to use for software deployment is over...
I've chosen to use MimarSinan's InstallAware Enterprise to deploy “My RSS Reader”.
I had taken some time to learn how to use InstallAware, roughly an hour. And in less than 10 minutes (or so), created the deployment package for “My RSS Reader”.
Take a look at the flash demo for “My RSS Reader” deployment.
In 2017, with the release of Delphi 10.2 Tokyo, Embarcadero introduced a specialized implementation of the Observer pattern into the System.Classes unit. While it has been in the wild for 9 years, it remains a "hidden" architecture for many, primarily because it serves as the invisible engine behind LiveBindings. Other than live bindings, you can also use the Observer pattern as a way to update component settings to the Windows registry, an .ini file, or persist it elsewhere.
System.Classes