Thanks for this! A little confused though, the conf folder in appdata is empty. I'm trying to change the post-download behavior, as the mv process is really slow for some reason. Is it required? There's no option in the web-ui to disable the post-download move that you have in the setup.
root@Tower:~# ls -lah /mnt/user/appdata/aria2webui/
total 0
drwxrwxrwx 1 nobody users 6 Nov 5 06:50 ./
drwxrwxrwx 1 nobody users 89 Nov 5 06:50 ../
EDIT: I figured it out. The container settings in unRaid has a map to /config on the container, but the app is actually looking in /conf.