The CLI (Command Line Interface) has come a long way since its early days, providing users with a more efficient and controlled way to interact with their systems and applications. Despite the rise of GUIs, CLIs remain popular among power users and developers due to their ability to speed up productivity, require fewer resources, and provide a tighter level of control over system operations. The GitHub CLI and Vonage CLI are two examples of CLIs that offer a range of features and benefits for developers and power users, including authentication, repository management, and application configuration. By leveraging these tools, developers can enhance their workflows and become more productive in their work with Git and Vonage APIs.