The article presents an open-source macOS AI copilot that uses vision and voice to answer questions about any application. The copilot takes a screenshot of the active window, sends it to OpenAI's Vision API along with a transcript of the user's question, and displays the answer in a notification window. The application is built using NodeJS and Electron, and can be configured to use a keyboard shortcut to trigger the assistant. The developer provides a video walkthrough and instructions on how to install and use the application.