Mui is a traditional Japanese wooden tool used for making rice cakes, known as mochi. It is typically made from a single piece of wood and features a flat surface for pounding cooked rice into a sticky, smooth consistency. The process of making mochi is often a communal activity, especially during the New Year celebrations in Japan. In addition to its culinary use, Mui can also refer to a popular open-source framework for building user interfaces. This framework is designed to simplify the development of web applications by providing reusable components and a straightforward API, making it easier for developers to create responsive and interactive user experiences.