Not sure I fully understand your question, but both Umbrel and Start9 have a Nostr app that can backup your content. Pretty easy though normies likely will need a walkthrough to get comfortable, but it’s fairly plug and play.
Discussion
91.3% of the world won't run those. They're great for the less technical nerds and early adopters though. We need more mainstream options. Apparently we have one that just launched! 🔥🔥