# Developer Documentation Welcome to the Rancher Dashboard Developer Documentation. Rancher Dashboard is the extensible UI that ships a part of the Open-Source [Rancher platform](https://www.rancher.com). This documentation is intended to help developers contribute to the Dashboard UI either directly or through Rancher Extensions. ## How this Documentation is Organised The [Getting Started](getting-started/concepts) section documents general concepts, the development environment and provides a walk-through of the Rancher Dashboard UI. Extension developers should head over to the [Extensions](/extensions/next/introduction) section and start their journey there.