LisaGUI is a project by Andrew Yaros that recreates the user interface of Apple's Lisa computer using JavaScript. Unlike emulators that mimic hardware, LisaGUI functions in a web browser, allowing users to interact with the LisaOS without needing the original machine. The Lisa, launched in the early 1980s, was known for its innovative approach to computing but ultimately failed commercially, resulting in many units being discarded. This project enables retro computing enthusiasts to experience the unique features of LisaOS, which blurred the lines between documents and applications. The Lisa was designed to simplify user interactions, eliminating traditional program management concepts like saving and loading files. Instead of opening separate applications, users worked directly with documents, which changed how they engaged with their computer. The Lisa's ambitious design was a stark contrast to the more conventional Macintosh, which emerged later and adopted recognizable features like dialog boxes and file management due to its limited hardware capabilities. The Macintosh built on some ideas from the Lisa but focused on user familiarity and practicality rather than the radical concepts of its predecessor. Interest in LisaGUI stems from its ability to provide a glimpse into a less familiar aspect of computing history. While many people have used more mainstream operating systems, the Lisa remains obscure. The project is a way to explore how early computing interfaces were conceptualized and how they influenced modern design. Users can interact with the interface and gain insights into the evolution of operating systems, making it a valuable resource for those curious about the roots of desktop computing.