This is the directory that will contain the source code of our projects and their dependencies. In general, we want our source code to have version control and be hosted on the cloud. It would also be great if we or anyone else could easily use our project. This requires a little extra setup on our part.

Let's imagine that our project is hosted at http://git-server.com/user-name/my-go-project. We want to clone and build this project on our local system. To make it properly work, we need to clone it to $GOPATH/src/git-server.com/user-name/my-go-project. When we build a Go project with dependencies for the first time, we will see that the src/ folder has many directories and subdirectories that contain the dependencies of our project.