Where do today's objectivists stand on the issue of deregulated money systems?

I'm thinking of where communities have the freedom to mint and issue their own currencies with their own rules of initial issue, and set up free exchanges where one currency can be freely converted into others, according to supply and demand.

Governments tend not to like it. But to me, it represents an essential freedom, whereas governmental monopoly on currency issue severely abridges liberty.

Your thoughts?