anchor.diff:      postman
       signal-desktop
       spotify
  -    pkgs-unstable.teams
  +    unstable-channel.teams
       tdesktop # Telegram Desktop
       tilix # Terminal emulator
       seafile-client
       vlc
  -    (pkgs-unstable.vscode-with-extensions.override {
  +    (unstable-channel.vscode-with-extensions.override {
         vscodeExtensions = config.my-config.vscodeExtensions;
       }) # unstable to get most recent version
     ];
  
positive.code: { config, lib, pkgs, vscode-utils, ... }:
  let
    pkgs-unstable = import <nixpkgs-unstable> { config = { allowUnfree = true; }; };
  in
  
  {
  
negative.code:     # GUI applications
      chromium
      evolution # used for calendar in Gnome Shell
      unstable-git.firefox # need v99 for security reasons
      gimp
      gparted
      inkscape
  