That’s cool, thanks for your work with this. I’m a regular user.
Was going to say that the John Carter Brown Library (leading research library for rare books, maps, and manuscripts about colonial Americas) uses Luna - they did last time I checked, but seemingly it changed? At any rate it worked well for the past decade or so: https://jcb.lunaimaging.com/luna/servlet
Edit - looks like I got this mixed up with Luna Imaging which I assume is different