I recently noticed that my nextcloud instance was missing photos. I have the android app set to automatically upload my photos. When I need to clear up space on my phone, I make a separate backup (because I’m a paranoid SOB and hard drives are relatively cheap). I noticed that nextcloud auto upload missed about 10% of the photos. I’m not going to bash the nextcloud devs, as I recognize that I am using a free product and am owed nothing, but I’m making this post so others are aware of this risk. Apparently I’m not alone https://help.nextcloud.com/t/android-client-does-not-auto-upload-all-images/216849/14


There’s a few things I backup from my phone.
I have an Android phone so I use Termux as a terminal emulator. I use ssh and passwordless keys to make transfers simpler and quicker.
Although this is closer to a backup process and not like SyncThing where it’s syncing a folder between two devices. I don’t believe rsync is capable of acting like SyncThing but I’m tempted to dig into rsync more and see if I can put something basic together one day.