Just a heads up that the latest minidlna release - minidlna (1.2.1+dfsg-2+deb10u1) buster-security; urgency=high - manages to trash your minidlna.conf and replace it with a default version.
Your original config is saved under /etc/minidlna.conf.dpkg-old so not a big deal to recover. However it's a nasty surprise when you sit down to watch TV and all of a sudden there's no files listed.