Ubuntu from source

[Amedee Van Gasse (Ubuntu)]

Suppose I wanted to (re)compile Ubuntu from source. I mean not just a few
packages but the entire distro, everything that I have installed. And in
some (semi) automated way, like Gentoo offers.
Would that be possible?

This is just a hypothetical question. I wouldn't do such a thing because
it is *useful*, only because it is *possible*. Like taking apart a radio
to see how it works.

-- 
Amedee