anchor.diff: -{ config, pkgs, ... }:
  +{ config, pkgs, lib, ... }:
   let
     unstable = import (fetchTarball
     "https://github.com/NixOS/nixpkgs/archive/nixos-unstable.tar.gz") {
  
positive.code:     dunst
      libnotify
      gnome-icon-theme
    ];
  
    home.file.".xmonad/xmonad.hs".source = ../../programs/xmonad.hs;
  
negative.code:   imports = [
      ../common.nix
      ../../programs/tmux/tmux.nix
    ];
    nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
      "1password"
    ];
    home.username = "sebastian";
    home.homeDirectory = "/home/sebastian";
  