The article explores the use of Go workspaces, introduced in Go version 1.18, as a solution for managing dependencies across multiple modules within a project, particularly in large monorepos. Traditionally, developers would use the "replace" command in go.mod files to handle local changes, but this approach requires careful management, especially when dealing with numerous modules. Go workspaces streamline this process by allowing developers to define shared dependencies in a go.work file, eliminating the need for replace commands and making it easier to test local changes across different modules. The article provides practical examples of transitioning from the old method to using workspaces, emphasizing that workspaces are personal to each developer and should not be included in the source code. It also suggests exploring Earthly, a tool for simplifying build processes in multi-module Go projects, for further efficiency.