React is a monorepo. Its repository contains multiple separate packages so that their changes can be coordinated together, and issues live in one place.

You're correct in noting that React is developed as a monorepo. A monorepo is a single repository that holds multiple projects or packages, which can enhance collaboration, simplify dependency management, and streamline the development process.

Here are some key points about the benefits and workings of a monorepo like React:

1. Coordination of Changes: Changes made to the core of the React library can directly reflect in the various packages or projects housed within the same repository. This enables smoother integration and testing of features across the board.

2. Simplified Dependency Management: When all the packages are in a single repository, it becomes easier to manage their interdependencies. Developers can update shared utilities or libraries and see immediate impact across all packages.

3. Consistent Versioning: Coordinating version releases for all packages is more straightforward, helping avoid version conflicts and ensuring compatibility.

4. Streamlined Development Process: Developers can work on multiple aspects (like the core React library and its associated packages) without needing to switch between different repositories. This unified approach can enhance productivity.

5. Centralized Issue Tracking: With a single repository, all issues can be tracked in one place, making it easier to identify common problems and maintain a focus on the overall health of the project.

Overall, using a monorepo structure like React's facilitates efficient management and coordination of projects, ultimately leading to a more cohesive development process.