I have all of my music stored on a NAS. That’s not the only varuable in play here, however. When my Core was on my NUC running Windows, additions were immediate, sometimes even before I could edit metadata using JRiver. Now that my NUC is running ROCK, nothing updates manually, ever
I second the notion that it would be great to be able to associate file types with Roon, so that, if I click on a FLAC file in my Windows computer’s download folder, double-clicking will allow me to play it immediately, before I copy the files to my NAS, edit their metadata, and run a Roon scan.