SD is a peer-to-peer bug tracker that's built for sharing and use both online and offline. With SD, you can sync your bugs back and forth between other instances of SD, and even between SD and other bug trackers that SD supports. Since SD does not require a network connection for use and stores bug information locally, you can always access your bugs, no matter where you are.

Currently, SD supports syncing between SD and RT, Hiveminder, Trac, GitHub, and Google Code.

SD is built on top of Prophet, a distributed database system.