# OnceMutex > A mutex providing one-time synchronized access, then safe lock-free access. ## Usage Use the crates.io repository; add this to your `Cargo.toml` along with the rest of your dependencies: ```toml [dependencies] once-mutex = "*" ``` ## Author [Jonathan Reem](https://medium.com/@jreem) is the primary author and maintainer of OnceMutex. ## License MIT/Apache-2.0