Components are a great way of managing shared code which is used in many projects. They allow a single copy of the library to be accessed in many placed in your repository but also allow the library to be updated from any of those locations. A component is made from a link between two folders (usually in two different projects). Any files or folders inside the component folders are shared in the two places. Any changes to a file in one part of the component will be replicated exactly to all of the other parts.