RRG is a Rust rewrite of GRR (a remote live forensics framework).
It strives to evaluate how feasible it is to rewrite the client-side part of GRR (an agent service) without all the historical baggage that the current version has to carry. For example, it does not implement its own communication layer, but leverages Fleetspeak for that. It also tries to assess how many existing issues related to the Python codebase could be resolved by using a modern language with powerful type system and strong safety guarantees.
This project is not an official Google product, is under heavy development and should not be used for any production deployments. So far, it is nothing more than an experiment.