Man I get paranoid about synchronization programs for this very reason. There's usually some turnkey easy-mode enabled as soon as you first launch that's like:

"Hey you wanna back up your entire NAS to your phone?! That'll be fun, right?!"

And you're like "...No."

And then it wants to obliterate everything so it's all "synchronized", often it's not easy to find a "No, stop, don't do anything at all until I configure this." Option.

iTunes was SO BAD about this.

Syncthing is the least-bad sync software I've ever run. It's got some footguns but it's still brilliant.

I would imagine there's still ways to back up version controlled software right?

[–] UFODivebomb 2 points 3 weeks ago

I'm fairly sure than attempting to initialize a new android phone and selecting to "restore" your Google account also runs into this. The sync gets confused and just starts deleting.

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