The framework source code is not the important part -- it's just dumb plumbing and glue. The tracking code (NITE) is what's important. It is not open source at

The framework source code is not the important part -- it's just dumb plumbing and glue. The tracking code (NITE) is what's important. It is not open source at all -- merely freely available. (All you can get are the compiled libraries.) As far as I know, this is the only freely available, full body skeleton tracker that works on Linux.