Follow the installation guide for production server.
*[Installation guide for latest stable release (5.0)](https://github.com/gitlabhq/gitlabhq/blob/5-0-stable/doc/install/installation.md) - **Recommended**
*[Installation guide for the current master branch (5.1)](https://github.com/gitlabhq/gitlabhq/blob/master/doc/install/installation.md)
*[Installation guide for a production server](https://github.com/gitlabhq/gitlabhq/blob/master/doc/install/installation.md)
#### Official development installation
If you want to contribute, please first read our [Contributing Guidelines](https://github.com/gitlabhq/gitlabhq/blob/master/CONTRIBUTING.md) and then we suggest you to use the Vagrant virtual machine project to get an environment working with all dependencies.