Unraid

On the Apps tab, search for Backuparr and click Install. The template installs the same image, with appdata in /mnt/user/appdata/backuparr and PUID/PGID set to Unraid’s 99/100. Fill in the folders of the apps that need one (leave the others empty) and click Apply. Unraid passes its own timezone as TZ. Apps are reached at your server’s IP and each app’s port, e.g. http://192.168.1.10:7878.

Then go through the first run.