[ripley12]

crates.io is a little bare-bones sometimes.

I usually use lib.rs instead: https://lib.rs/crates/rg

That has a link to source: https://docs.rs/crate/rg/0.1.0/source/

And here's the Rust code: https://docs.rs/crate/rg/0.1.0/source/src/main.rs