Alt text: A line plot with 2 axis (confidence vs competence) referencing the Dunning-Kruger effect with various distro logos placed at different points on the line. Starts with mint/ubuntu near (0,0) and progressing through multiple distros to end up with opensuse/fedora at what it calls “the plateau of sustainability”
NixOS is a declarative OS. Instead of installing a software, you specify it in a config (.nix file) and rebuild. Same goes mounts, services etc.
I use it because it is great to be able to revert if I do something stupid.