PiAware using external DB instead of local JSON?

Is there any way to redirect PiAware to talk to an external DB source rather than the internal JSON DB?

I am making regular changes to the JSON DB and its a bit fiddly in its current form (export CSV, run python script to convert it).

Nothing too complex but I have a Synology running 24x7 and I might be able to run up something there as there are several options available.

piaware does not talk to the json database.
The dump1090 javascript does. See dbloader.js, you could just point db_ajax() at a different URL.
You will need to set CORS headers etc.