This document discusses the development of an open source Angular tree component library called angular2-tree. It started as an MVP with basic functionality that grew significantly over a year to include features like async data loading, drag and drop, filtering, and virtual scrolling. The document provides tips for publishing an open source library, covering topics like build tools, TypeScript, versioning, and responding to issues. It highlights the library's growth in users and contributions. In closing, it encourages others to contribute to the project.