--- sidebar_position: 100 --- # Open Source It's important to the `zrok` project that it remain free and open source software. The code is available on GitHub for the world to use, inspect, and build upon! Check out the repository over on GitHub at https://github.com/openziti/zrok. If you find `zrok` to be useful, and you want to help spread the word of `zrok` give the project a star. It really does help get the word out about the project. The project also uses a very permissive license: Apache v2. We encourage people to fork the repo and use `zrok` for your own purposes how you see fit or contribute back to the project. ## Built on OpenZiti The power of `zrok` really lies in `private` sharing. It's increasingly clear that security needs to be a first-class member of any organization. To enable `private` sharing, `zrok` was built on top of another excellent open source project named OpenZiti. OpenZiti is a secure overlay network focusing on bringing zero trust to applications. It is the __backbone__ of `zrok`. In fact, `zrok` proudly proclaims itself as an OpenZiti _native_ application. If you are interested in learning more about OpenZiti head over to [the docs](https://docs.openziti.io/docs/learn/introduction/), try the quickstart, and don't forget to star that project too. We couldn't build `zrok` without OpenZiti!