I’m just diving into self-hosting, and I’d a way to have a constant cloning of my phone in the background, preferably FOSS. Does anything like that exist?
Syncthing is nice and simple to use on all platforms. I like it.
i’m using Autosync to backup my files on my NAS every day. It doesn’t require Root therefore it can’t create “real” backups that you could restore from. It can only copy the files from your Phone; Pictures, Files, etc.
That’s useful when you have a backup tool like TitaniumBackup (root needed) to do the backup locally to SD. That negates the need to sync to one of the 3 supported cloud platforms. (where a selfhoster wouldn’t want to store the data)
I use SMBSync2 (f-droid) to back up select folders from my phone to my NAS. And to copy any new music from my NAS to my phone.
Most phone backup solutions won’t backup the data (i.e. settings) of your apps, unless you are rooted. The majority will backup either files and/or files, SMS, phone logs, etc.