The Hansoft Git integration client plugin is installed automatically when a Hansoft client connects to a server that has the Git integration installed.
From the perspective of a Hansoft user, the Git integration is active, and will prompt the user for associating Hansoft tasks to Git commits, if at least one of their Hansoft projects has a Git repository associated with it.
Any user that is a main manager of a project can invoke the "Customize project integration settings" dialog, and enable or disable specific Git repositories for that particular project.
Accessing the Git integration settings as a project manager
Enabling and disabling Git repositories for a Hansoft project