Ash

I also need this. @Keats do you have an example of a CI setup? I can take a stab if I have something to work off of

This keeps rand, just sets it as an optional dependency if none of the features need it. If you don't have a feature using it, it won't get pulled in...

> Unlike [prost_types::Timestamp](https://github.com/tokio-rs/prost/blob/ad5650b0c96b7e5c1f8310462af7f6e35c2a0bfe/prost-types/src/timestamp.rs#L196), our Timestamp struct does not provide a way to construct it from a std::time::SystemTime, is this something we want to add? @Peartes can you take a pass...

Hey, we are looking to take advantage of poseidon hashing in our Go codebase, which already uses Gnark. Is there anything I can do to help this effort?