You can already do most of that with GrapheneOS or even an iPhone. My contacts, files, photos, etc. are on my home server, accessed through a VPN. My GrapheneOS phone only runs a handful of open source apps. If I were to lose the phone, I would simply revoke the Wireguard key and there wouldn't be anything valuable left on it.
reply> "selfhosting a cellphone at home with some kind of remote access system
replyYou can use TeamViewer for that. Or maybe scrcpy could be coerced into working in a similar way.
Good luck making it work again remotely after a long power outage.
replyNot sure what do you mean? If that is a concern, there are solutions for this. Like UPSes and backup cellular connections.
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