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Joined 3 years ago
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Cake day: June 13th, 2023

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  • Rsync can. For instance, rename files instead of deleting them, so that your backup keeps old files in case they need recovering.

    It can also make hard links to existing files so they you can create multiple backup directories that share unchanged files to save space.

    Also check out rclone, a similar tool with a focus on supporting many target types, plus it can encrypt a remote location, then mount that backup to access the decrypted files.















  • You need to enable Bluetooth as a method of connection in the app settings (and can turn off wifi and data there).

    The phones can be in airplane mode but with Bluetooth turned back on (as you would to use earbuds).

    I don’t recall pairing the phones, but there is a “connect via Bluetooth” option on each chat that might be doing that automatically.

    You link accounts to each other by scanning qr codes.

    It does have a group chat but I haven’t used it, so I don’t know if that works with Bluetooth alone.

    I just tried testing this with an old phone of mine, but can’t get it to work right now (maybe because it has Graphene os?), but I have actually used it on flights in the past.