Why do you need to install watchman software when setting up a development environment for React Native on MacOS?

Introduction: Watchman is an open-source project developed by Facebook that monitors files and tracks changes. 

Functionality: It can trigger actions based on file changes. 

Hot Reloading in React Native: 

• Watchman powers the hot reloading feature in React Native. 
• Hot reloading allows developers to see changes immediately without recompiling the entire project. 
• This feature speeds up development compared to traditional native mobile application development, which requires manual recompilation. 

Automation: When a developer makes changes in a React Native project file, Watchman detects the changes and triggers an automatic build, reflecting updates without manual intervention. 

Developer Benefits: The hot reloading feature makes React Native a developer-friendly framework, accelerating the development process. 

Setup: Installation of Watchman is included in the React Native environment setup instructions.