customization key + system modifications

[Erik Garrison]

I feel that I saw something on devel at l.l.o previously on this topic, but
was unable to find it via a search of the list archives.  Asking around
#olpc-devel suggests that there is no such method.

Currently there is no method to set items settable via sugar-control
panel using the customization key, or to run a script of some kind at
customization-key unpacking time?  It might be very useful if not yet
exists.

There are security issues which could be considered quite grave.  But if
we can get around them we could achieve a big win for deployments
wishing to manage various software changes on a deployment-by-deployment
basis.

Erik