This guide provides a step-by-step walkthrough for setting up GCC and GTK 4 on a Raspberry Pi 5 (8GB) using Visual Studio Code. It covers everything from hardware setup to creating and running your first GTK 4 project. This guide is designed for developers and hobbyists who want to build graphical applications on their Raspberry Pi using modern tools. It offers a quick and practical introduction to programming with GTK 4, making it ideal for those looking to explore GUI development on this versatile platform.