anchor.diff:      ./../../home/gpg.nix
       ./../../home/haskell.nix
       ./../../home/i3.nix
  -    ./../../home/neomutt.nix
       ./../../home/neovim.nix
       ./../../home/packages.nix
       ./../../home/tmux.nix
  
positive.code: {
    # import each nix file into home-manager
    imports = [
      ./../../home/email.nix
      ./../../home/emacs.nix
      ./../../home/env.nix
      ./../../home/firefox.nix
  
negative.code:     shell = {
        zsh.enable = true;
      };
      terminal = {
        email.enable = true;
      };
    };
  
  }
  