Install a CMS in multi-site

The question

I would like to install, for example, Drupal in multi-site. How to proceed ? Do I need to create a new web-area or do you know what? The answer I hope Technically,

It would be feasible …

The answer, the real

… but we will not do it. We can, but we do not want. If we did that, it would remain an operation that should be done manually by an admin. Not too much possible to automate because each request is specific. For if only 1% of the users of Toile-Libre, we would spend our days there, and we already missed free time.

Sorry !