In case it’s helpful, I took a look at what forest-express does, and found there a setting like I’m proposing.
I see that library is using a setting called “schemaDir” to construct the path to the file:
And based on this thread, it sounds like it works the way I’m hoping (controls where its read/written):
So, I’m proposing we add an analogous setting in the django version. It’s a trivial change, so I’m happy to add it, but I wanted to check if you think that sounds reasonable before doing so.