Expo is an open-source platform that allows developers to create universal native apps for Android, iOS, and the web. It provides a universal runtime and libraries that enable developers to build native apps using React and JavaScript. The Expo client software, modules, apps, CLI, and more are developed in this repository. Expo Application Services (EAS) is a platform of hosted services integrated with Expo tools to help build, ship, and iterate on apps. The website also includes documentation on building and deploying universal apps, project layouts, and guidelines for the Expo community. Developers can contribute to Expo and explore the various features and functionalities it offers.
https://github.com/expo/expo