The author of the article expresses their frustration with the removal of the grid feature in macOS Spaces, which allowed for a customizable grid of virtual desktops. They built an app called GridLion to restore this functionality. The app provides a grid-based navigation system for virtual desktops and allows for instant switching between them. The author discusses the development process and the challenges they faced, including permission hurdles and the limitations of using Large Language Models (LLMs) for development.