Following the deprecation of GoCenter as of May 1, 2021, the article explores the transition of the etcd project to Go modules, a dependency management system introduced in Go 1.11. It uses the etcd project as a case study to illustrate best practices for converting existing Go projects, highlighting challenges like updating the go.mod file, enabling Go modules, and adjusting imports for semantic versioning. The text emphasizes the need to address issues with static analysis tools and code generators that may not be module-aware, and it suggests configuring the Go build system to utilize GoCenter for more efficient builds. The article serves as a comprehensive guide for developers facing similar transitions, offering insights into potential obstacles and solutions in migrating complex projects to the Go modules system.