Installing Roon Server on Fedora Linux _not_ as root

Aha. From your post:

Good to know. I initially tried the installation under /home/roon and SELinux was even more unhappy. Today I learned there’s endless debate over /opt vs. /usr/local; since Roon software isn’t packaged, /opt is arguably a more correct choice. The trade-off is SELinux wants me to “bless” the new location with restorecon.