9P servers can be mounted (thanks to plan9port) as a (virtual) filesystem. Therefore, any utility, in any language, can interact with the cloud simply by writing and reading files, without even knowing is the system it interacts with is the actual hard drive, a computer on the other side of the planet, or a composite cloud system.
Seeing the power of Plan9/Inferno ported to Lua opens up some interesting perspectives.
I'm eager to play with this, congrats !