Use --now to the enable to start too

fedora/jellyfin.spec

@@ -129,7 +129,7 @@ if [ $1 -gt 1 ] ; then
     fi
     if [ $1 -eq 1 ]; then
         # On fresh install only, enable the jellyfin.service unit
-        systemctl enable jellyfin.service
+        systemctl enable --now jellyfin.service
     fi
 fi
 %systemd_post jellyfin.service