The releases of this repository hold the MeshLib shared libraries that the meshlib crate downloads on its first build: one meshlib_<version>_rust_native_<os>-<arch>.zip per platform (Windows, Linux, macOS on x86_64 and aarch64). They are the same libraries as in the MeshLib NuGet package.
This is a temporary home: later versions of the crate download the libraries from the MeshLib releases instead. See the MeshLib repository for the sources and the Rust setup guide.