Ask HN: How to maintain an identical "hot standby" Android phone

Re:Ask HN: How to maintain an identical "hot standby" Androi... by jhoho on Monday November 06, 2023 @02:46PM (#38167866)

LineageOS, CalyxOS and GrapheneOS all come with Seedvault which allows nightly remote backups. They're anything but complete, though. For folders, Syncthing might be interesting. I don't think it's possible without rooting your phone. Then, NeoBackup could do it.

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Re:Ask HN: How to maintain an identical "hot standby" Androi... by rkagerer on Monday November 06, 2023 @03:15PM (#38168310)

Thanks. I looked into Seedvault and gather one of its challenges is a reliance on API's that are deprecated and (in the meantime) becoming intentionally degraded. Eg. Apps can exclude themselves via android:allowBackup=false.

There have been calls to modify Seedvault to impersonate D2D transfer in order to bypass the restriction. Or I wonder if I can patch the OS to ignore/override that app manifest flag? (I gather some people are patching their APK's).

I wrote a little more about this here: https://news.ycombinator.com/item?id=37774254

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