This is the simple-open-ni that bifocals depends on. It's just SimpleOpenNI's jar with all its native libraries repackaged into it, in the way that leiningen expects.
Really the only slightly non-trivial thing here jar.sh script that will, given
a version string for SimpleOpenNI (such as '0.27'), download that release and
perform the repackaging. The resultant jar (which will show up in the current
directory) can then be uploaded to clojars. You'll need to change the groupid
in the pom, though.
If you find yourself needing to change this, it probably means there's a new release of SimpleOpenNI that I haven't noticed yet, so please open an issue on this project so I can update the canonical clojars jar and bifocals.