[xwiki-users] Extensibility of Workspaces

Hello, Can the applications for Xwiki Enterprise be added to the Xwiki Workspaces. On the XWiki Workspaces main page it mentions that - "Of course, under the hood Workspaces is based on Enterprise, and with some work you can get the same extensibility, but this is not the goal of this product." Should I even try extending the XWiki Workspaces the way it is possible with Xwiki Enterprise, since I am fairly new to XWiki. There is this concept of User spaces which is very appealing in the Workspaces which I really require. What are the limitations which I would be working against, so that I do not try to solve a problem which cannot be solved or atleast with decent effort. An example of what I would like to try is bring in the application of forums besides others Thanks in advance, Harjeet.