Masa gives an overview of the GUI framework his team implemented for developing the administrator screen of their web application. The framework uses a combination of open source and custom components, including jQuery, Bootstrap, and custom JavaScript and CSS libraries, to provide a simple and unified programming interface and enable easy handling of data and creation of cool GUIs. Masa describes the architecture and goals of the framework, shows some example screens created with it, and outlines the topics to be covered in future sessions on using Bootstrap and other framework features.