This topic is difficult to google, therefore I ask:

Some of my notes will be changed from time to time. Information will be replaced (e.g. I'm regularly borrowing a book to people and the note remembers to whom I lend the book currently).

The deleted information is not of much use, but sometimes it could be necessary to recover it (e.g. after a while the book got tatty, so I'd like to know its history of borrowers).

(Note: the above book example is just an example to explain a concept)

Would it be practical to create a git repository out of my org-roam notes folder, or are there unwanted side effects with that approach (i.e. inconsistent database, confused org-roam, ...)?

Edit: thanks for all the positive feedback, that keeping org-roam notes in a git repository is possible and works.