There are some export* options to tacmd:
tacmd bulkexportpcy
tacmd bulkexportsit
tacmd exportBundles
tacmd exportcalendarentries
tacmd exportnavigator
tacmd exportqueries
tacmd exportsitassociations
tacmd exportsysassignments
tacmd exportworkspaces
There's no option to export the deployments, but i don't see why you would want to do that.