Brent Ozar ties into a Git repo:
SQL Server Management Studio v21 added native Git support, making it easier to use source control natively inside SSMS.
This feature is for developers who are already used to working with Github to manage specific object changes as they work, and who are already accustomed to Git terminologies like branches, commits, pushes, and pulls. This feature is not for DBAs who think it’s going to automatically keep your SQL Server’s object definitions inside source control for you. I totally understand why you’d want that, for sure, and I do as well, but our princess is in another castle.
Read on to see how it works. As I went through the article, my thought was that this is almost exactly the same experience as what you get with Visual Studio. And on the whole, I’d consider that a good thing, as this isn’t some implementation of 10% of the total functionality.