This library is at (very) experimental stage, we do not advice to use it on mainnet. There is still some minor differences at the protocol level between this implementation and the python & kotlin implementations, but we should fix it soon.
As of now, we have only implemented the protocol for using Segwitv0 inputs & outputs.
For now there is no plan to implement VPN or Tor support in this lib, as it's expected to be handled at consumer or OS level.
The rust library can be found here.