Ubuntu's Apt servers

[Jon Kristensen]

Hello (again) developers!

I posted a mail on this list a couple of days ago where I asked about
Ubuntu forking (thanks for your kind replies!), and now I got another
question. It's not about Ubuntu development so it might not be relevant
to bring it up here, but in that case, please point me to the relevant
list. Thanks a lot!

Say that I would fork Ubuntu, making only small changes that does not
effect the system's packages. Would it be OK for that system to use
Ubuntu's official package archives, or are they for Ubuntu only?

Thanks in advance!

-- 
Jon Kristensen
President of Dedikerad