* [PyO3/PyO3](https://github.com/PyO3/PyO3) - CPython Rust binding (a fork of rust-cpython) [<img src="https://travis-ci.org/PyO3/PyO3.svg?branch=master">](https://travis-ci.org/PyO3/PyO3)
* R
* [rustr/rustr](https://github.com/rustr/rustr) — use Rust from R, and use R in Rust [<img src="https://travis-ci.org/rustr/rustr.svg?branch=master">](https://travis-ci.org/rustr/rustr)