After scanning the rest of this thread, I see that my problem where the player loads, but the genre/artist/album lists don’t populate, has been reported previously. However, I only see the problem from outside the LAN. Inside the LAN, the lists populate just fine. Per one of the suggestions earlier, I added a playlist to the library and now the lists populate when connected from outside the LAN and stream properly.
BTW, a volume control would be a welcome addition to the player.
This is gonna be a fun app. Thanks!