How do you manage your processes?

I’m just getting started, but I’ve already seen many processes in my company that would benefit from being handled in Camunda. It occurs to me that at some point in the future, I might look around and find I’ve got so many diagrams that they are hard to keep track of. I was wondering - how do you all manage your processes? Do you just drop them in source control? Do you have any organizing tips? Just curious what other people are doing…