The introduction of the propelauth CLI aims to simplify the process of setting up authentication in frameworks, focusing initially on Next.js due to its complex setup requirements. The tool is designed around three key design principles: ease of understanding, leveraging framework features effectively, and minimizing user errors. It automates the transformation of a basic Next.js App Router project into a comprehensive application with features like authentication, two-factor authentication (2FA), enterprise single sign-on (SSO), and SCIM. The CLI identifies the specific version and router of Next.js in use and updates the repository accordingly, accommodating both new and existing projects. Users can get started by installing the CLI globally, logging in with a personal API key, and running a simple setup command to integrate authentication into their projects. Feedback and support are encouraged through support channels to ensure continuous improvement of the tool.