While not a native smartos build you can run btsync in an lx brand thanks to the lx brand work joyent is doing. http://www.slideshare.net/bcantrill/illumos-lx Slide 17 has the image uuid to import. I will post a blog post on it eventually, but I have btsync running a lx brand at home and it works just fine. Even has inotify support!