My OS is always a fresh install. Everything I did to alter and configure my OS is self-contained and self-documented in one file. I can try anything without e

My OS is always a fresh install. Everything I did to alter and configure my OS is self-contained and self-documented in one file. I can try anything without ever risking the stability of my system. If it breaks, I just reboot, and pick the second most recent GRUB entry. If I ever want to change my root filesystem or move to a new disk, I can do the whole reinstall in a few short obvious steps. I can keep my laptop and my desktop configurations identical. If I want a few things to be different, they can go in a separate config file. The trickiest part is running software that isn't already packaged. It's usually not too hard, though: there are a few nix features that construct a more traditional/compatible environment, like steam-run and nix-ld. The biggest problem is that their existence isn't obvious to new users. They should really go near the top of the manual.