Although Shared Accelerators share a lot of commonality with Accelerators - they are a substantially different product, and as such, you will discover a number of important changes when you come to deploy your applications.

If your needs are simple, it should be relatively simple to migrate web applications from a Shared Accelerator to a full-blown Accelerator. If you are more complex, then the power of an Accelerator will really come into its own, allowing you to install almost any software you like (within the constraints of the AUP, obviously) and customize software as you please.

Shared Accelerators use pkgsrc for software installation. User (non-OS) software will be found in /opt/local. On a full Accelerator, /usr is mounted as read-only. Default software has been provided from pkgsrc (historically from Blastwave).

Shared Accelerators use a different variant of Virtualmin: Virtualmin Professional. Full Accelerators are provided with the open-source (GPL) edition of Virtualmin. You are, of course, free to buy your own license if you wish to upgrade to the features of Virtualmin Professional (such as one-click software updates).