Appium is an open-source project and ecosystem designed to facilitate UI automation of various app platforms, especially for mobile apps such as iOS, Android, and Flutter. It aims to integrate platform-specific automation technologies into a stable interface accessible through popular programming languages like Java, Python, Ruby, C#, and JavaScript. Appium 2.0 reimagines the framework as a platform where "drivers" and "plugins" can be created and shared independently, allowing users to install and work with decoupled drivers based on their application platform and modify the framework via plugins. To get started with Appium 2.0, users need to follow specific steps including installing the required dependencies, setting up the Appium server, and running automation scripts. Additionally, Appium provides a troubleshooting guide and resources for migrating from Appium 1.x to Appium 2.x, as well as integrating with CI/CD tools like Bitrise.