anchor.diff:  
     idea-community = buildIdea rec {
       name = "idea-community-${version}";
  -    version = "2021.2.3"; /* updated by script */
  +    version = "2021.3"; /* updated by script */
       description = "Integrated Development Environment (IDE) by Jetbrains, community edition";
       license = lib.licenses.asl20;
       src = fetchurl {
         url = "https://download.jetbrains.com/idea/ideaIC-${version}.tar.gz";
  -      sha256 = "166rhssyizn40rlar7ym7gkwz2aawp58qqvrs60w3cwwvjvb0bjq"; /* updated by script */
  +      sha256 = "0xrhgqbsyd2plzkkmy00bwsa8dk4ijszmhmbyn6c9ygl01zhji6y"; /* updated by script */
       };
       wmClass = "jetbrains-idea-ce";
       update-channel = "IntelliJ IDEA RELEASE";
  
positive.code: 
    ruby-mine = buildRubyMine rec {
      name = "ruby-mine-${version}";
      version = "2021.2.3"; /* updated by script */
      description = "The Most Intelligent Ruby and Rails IDE";
      license = lib.licenses.unfree;
      src = fetchurl {
        url = "https://download.jetbrains.com/ruby/RubyMine-${version}.tar.gz";
        sha256 = "0bbq5ya1dxrgaqqqsc4in4rgv7v292hww3bb0vpzwz6dmc2jly1i"; /* updated by script */
      };
      wmClass = "jetbrains-rubymine";
      update-channel = "RubyMine RELEASE";
  
negative.code: 
    idea-ultimate = buildIdea rec {
      name = "idea-ultimate-${version}";
      version = "2021.3"; /* updated by script */
      description = "Integrated Development Environment (IDE) by Jetbrains, requires paid license";
      license = lib.licenses.unfree;
      src = fetchurl {
        url = "https://download.jetbrains.com/idea/ideaIU-${version}-no-jbr.tar.gz";
        sha256 = "0riwww75aizprb01c1sccprbr00ky5wgy5cxxjxqgm8v72rfnihb"; /* updated by script */
      };
      wmClass = "jetbrains-idea";
      update-channel = "IntelliJ IDEA RELEASE";
  