for this excellent tool, I was just about to write a library to access the calibre DB myself, so you saved me quite a bit of work
One question, though, would you like to deploy the artifacts from your library directly to central? It would make using your code as a library for other application easier and would help with making other developers aware of your code also.
I'm using the services of the good people at sonatype.org to mirror some of my artifacts (for now osmosis and postgis) to central, too, so I could lend a hand if necessary.
Regards,
Hakan