New ask Hacker News story: Ask HN: How to maintain an identical "hot standby" Android phone

Ask HN: How to maintain an identical "hot standby" Android phone
6 by rkagerer | 0 comments on Hacker News.
I'd like to buy two identical devices (eg. latest Pixel) and set one up to mirror the other - so if I accidentally drop one down a volcano I can grab the other and keep on rolling. I want to keep everything on my own infrastructure, without relying on Google backup or the like. Sync needn't be realtime, nightly is fine. The devices should be kept as similar as possible - settings, apps, data etc. I'll only use one at a time (one "master"). In a perfect world my service provider, appstore platform, app publishers, etc. wouldn't be able to tell the difference (although I realize that might be asking too much). I don't mind using an alternate flavour of Android if needed eg. LineageOS, GrapheneOS, etc. Has anyone accomplished this and gotten it working smoothly in practice? Any tooling you can recommend to help?

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