[Newbies] Packages and dependencies (squeakmap and monticello)

[itsme213]

I am a bit surprised that packages in squeakmap (and monticello?) do not 
seem to be aware of package dependencies. There may be historical or 
technical reasons for this, but for someone coming from Ruby I really miss 
the equivalent of Ruby's "gem" package system:

    gem install foobar

will inspect meta-data on the foobar package, and then locate and install 
any required packages as well if they are not present already, before 
installing foobar. It is also version aware.

Is there a way to do this with squeak packages? Some specific reason for not 
doing this?

Thanks.