1{
 2  den.aspects.mobius = let
 3    stateVersion = "25.11";
 4  in {
 5    nixos = {
 6      # DO NOT FIDDLE WITH THIS VALUE !!!
 7      # This value determines the NixOS release from which the default
 8      # settings for stateful data, like file locations and database versions
 9      # on your system were taken.
10      # Before changing this value (which you shouldn't do unless you have
11      # REALLY NECESSARY reason to do this) read the documentation for this option
12      # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html)
13      # and release notes, SERIOUSLY.
14      system.stateVersion = stateVersion; # Did you read the comment?
15    };
16  };
17}