Hello All,
I installed Sonarr and found it had trouble reading from my nfs mounts, only seeing one folder, which turned out to be mono's issue. I used a snapshot of version 5.20 from the raspbian repo
apt install apt-transport-https dirmngr gnupg ca-certificates
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
echo "deb https://download.mono-project.com/repo/debian stable-raspbianstretch/snapshots/5.20 main" | sudo tee /etc/apt/sources.list.d/mono-official-stable.list
This is working fairly well for me so far and I will post back if I run into problems. Using 5.20 to avoid some of the regression and that version is still kinda supported by the Docker community. If anyone is able to get higher versions to run well please reply.