I suggest you re-read the help file. Shared repositories are still available in Ver.9 - in fact as is all the features of Ver.8.2. There is a new Object Repository Manager, which perhaps takes some getting used to.
If you had to identify, in one word, the reason
why the human race has not achieved, and never
will achieve, its full potential that word would be "meetings".
You just need to unlearn what you thought was the way to go in 8.2 and learn the true power of the OR in 9.0. Go back and read the Help file on OR's for 9.0 it took a couple of days for the penny to drop for me.. (I am a bit slow)