This tutorial guides developers in creating a video calling app using ReactJS and Video SDK. The app allows users to join existing meetings or create new ones, and includes features such as audio and video conferencing, real-time messaging, and recording capabilities. The project structure is designed with modular components, including `MeetingView`, `Controls`, and `ParticipantView`, which handle different aspects of the meeting experience. The tutorial covers key concepts such as authentication, API calls, and media stream APIs to integrate Video SDK into the app. With this guide, developers can create a fully functional video calling app in minutes, and customize it further with additional features like chat messaging and screen sharing.