

Why this complicated setup? Komodo handles auto update by itself. It also update the whole stack at once, so no shutdown of the BD while the app stays up. Just have 2 checkboxes to tick.
The less stuff the better, it’s essential in case you have a failure. I only have to redeploy komodo, then all my stacks will be ready to get back online. I even removed watchtower.
Immich photos are one of the main thing I backup. I use duplicacy and I backup to backblaze B2 storage. It does incremental backups. Same thing with docker persistent data or other things I consider important.