No, because it would not be possible to retrieve the original information.

That’s a salmon.

Try to mark the devices as trusted in blueman and see if it helps.

But how does the mirror knows what’s behind the paper?!

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It works better if you tie the router to the fan blades.

2

Syncthing! Although I don’t use it to create incremental backups, It just syncs folders between computers (and my phone).