Hi, I thought that we need a web module since there are a lot of files that belong to the s5 application which can't currently be distributed in another way, meaning the javascript/css/vm files. One way to do that using only a xar would be to attach them to a XWikiSkins object enabled in Presentations.WebPreferences, but this would require that all presentations are created in the Presentations space, and we need to make sure that s5 can be easily configured to work with those URLs. Easily means that when a new version of s5 is out, we don't have to spend more than 5 minutes to upgrade. A better solution involves Interface Extensions, but it would take a lot more time until it can be done that way. Btw, I'm almost ready to make a proposal + implementation ideas in a few days regarding Interface Extensions. For the moment, it is a real PitA that there's no way to make an application completely independent of the core skin/template files. And I'm not that sure that my commit was such a good idea, but for the moment it doesn't make any difference, since the application is mostly unusable at the moment. Anyway, I created the web submodule because I was looking at the files in the platform-web/templates+skins directory, and there were a lot of files belonging to the s5 applications which I had no idea how to distribute inside a XAR. Sergiu