The best way to do it is to copy entirely your $DSS_HOME (making a big tarball with it for instance) to your new computer.
If you run on mac os x you just have to
- transfer "/Users/$USER/Library/DataScienceStudio/dss_home" to the same location on your new mac
- download and install dataiku-dss.dmg app on your new mac
If you run on windows you just have to export your virtual machine and import it to your new hypervisor (virtualbox or VMWare)
If you're running linux, once you copied your $DSS_HOME to your new desktop you need to follow this procedure