anchor.diff:  { config, lib, nixpkgs, pkgs, ... }:
  -
   {
     imports =
       [
  
positive.code:       aileron
    ];
  
    environment.systemPackages = with pkgs; [
      alacritty
      autorandr
      feh
  
negative.code:     gcc
      gnumake
      libtool
      nvidia-offload
      ];
  
    virtualisation = {
      docker.enable = true;
  