I can see NixOS doing similar things. It's all about declarative configuration. Also very useful for embedded Linux distros, an A/B setup can help protect agai

I can see NixOS doing similar things. It's all about declarative configuration. Also very useful for embedded Linux distros, an A/B setup can help protect against update corruption due to power loss. If one of the two fails to boot, it can try the other, and retry the update.