The Nessa interpreter allows you to install libraries from git repositories. Here are the commands that you can use in order to do that. ## Installing *library packs* A *library pack* is one or more libraries uploaded to a git repository (*main* branch). This is more correct that calling them a single library because a repository might have more than one in different folders for convenience (such as *prelude*). You can install a library pack using the following command: ``` nessa install ``` This will clone the repository inside the configured modules folder. We assume that you have already executed `nessa setup` before and completed the wizard. ## Uninstalling *library packs* In order to uninstall a library pack you have to use the following command: ``` nessa uninstall ``` This removes the library pack from the configured modules folder.