It's been said that "graphical user interfaces make easy tasks easy, while command line interfaces make difficult tasks possible" and this is still very true today.

You can also leverage the command line interfaces to change the access control configurations of script packages, and even delete a package from the appliance using its ID, as shown in Figure 10.

Suffice to say, that when we define our manifest, we can declare optional dependencies on both the Felix and Equinox command line interfaces, so that when we install into either, we'll be able to run.