[pmarreck]

While it's not quite average-user-friendly (YET), one of the reasons I switched to NixOS is because it provides this out-of-the-box. I was frustrated with every other Linux for the reasons you cite, but NixOS I can deal with, since 1) screwing up the integrity of a system install is hard to begin with, 2) if you DO manage to do it, you can reboot into any of N previous system updates (where you set N).

Linux is simultaneously the most configurable and the most brittle OS IMHO. NixOS takes away all the brittleness and leaves all the configurability, with the caveat that you have to declaratively configure it using the Nix DSL.

[rrix2]

NixOS also has out of the box support for zfs auto snapshots, where you can tell it to keep 3 months, four weeks, 24 hourly, and frequent snapshots evert fifteen minutes so you can time shift your home directory, too

[pmarreck]

I'm zfs on root and haven't set that up yet! I should