When can we get the Rust version?

According to https://opensourcelive.withgoogle.com/events/rust-day-2022?talk=talk5, @felipeamp ported this project to Rust, but we outsiders cannot get the ported version.
This will mean this C++ version is abandoned and only in maintenance mode.
All Rust crates whose names contain woff2 are unofficial and developed by outsiders of Google.

Is the Rust version public or dedicated to Google insiders? Many projects depend on this C++ version. If it is abandoned, it is unhealthy.