anchor.diff:      # java
       pkgs.jdk11
   
  +    # misc
       pkgs.consul
     ];
   
     # Let Home Manager install and manage itself.
     programs.home-manager.enable = true;
  -  programs.gh.enable = true;
   
     programs.direnv.enable = true;
     programs.direnv.enableNixDirenvIntegration = true;
  
positive.code:     pkgs.nixfmt
      pkgs.tree
      pkgs.nix-tree
  
      # cloud
      pkgs.aws-vault
  
negative.code:     '';
  
      envExtra = ''
        (( $+commands[nix] )) || source /etc/profile.d/nix.sh
      '';
  
      initExtraBeforeCompInit = ''
  