anchor.diff:  
     idea-ultimate = buildIdea rec {
       name = "idea-ultimate-${version}";
  -    version = "2021.2.3"; /* updated by script */
  +    version = "2021.3"; /* updated by script */
       description = "Integrated Development Environment (IDE) by Jetbrains, requires paid license";
       license = lib.licenses.unfree;
       src = fetchurl {
         url = "https://download.jetbrains.com/idea/ideaIU-${version}-no-jbr.tar.gz";
  -      sha256 = "1d0kk2yydrbzvdy6dy9jqr182panidmbf2hy80gvi5ph2r5rv1qd"; /* updated by script */
  +      sha256 = "0riwww75aizprb01c1sccprbr00ky5wgy5cxxjxqgm8v72rfnihb"; /* updated by script */
       };
       wmClass = "jetbrains-idea";
       update-channel = "IntelliJ IDEA RELEASE";
  
positive.code: 
    idea-community = buildIdea rec {
      name = "idea-community-${version}";
      version = "2021.2.3"; /* updated by script */
      description = "Integrated Development Environment (IDE) by Jetbrains, community edition";
      license = lib.licenses.asl20;
      src = fetchurl {
        url = "https://download.jetbrains.com/idea/ideaIC-${version}.tar.gz";
        sha256 = "166rhssyizn40rlar7ym7gkwz2aawp58qqvrs60w3cwwvjvb0bjq"; /* updated by script */
      };
      wmClass = "jetbrains-idea-ce";
      update-channel = "IntelliJ IDEA RELEASE";
  
negative.code: 
    webstorm = buildWebStorm rec {
      name = "webstorm-${version}";
      version = "2021.3"; /* updated by script */
      description = "Professional IDE for Web and JavaScript development";
      license = lib.licenses.unfree;
      src = fetchurl {
        url = "https://download.jetbrains.com/webstorm/WebStorm-${version}.tar.gz";
        sha256 = "1llz97r95xrf7yixgbfipg153qikkxziwwhv9dvvi29v7pi1k4ys"; /* updated by script */
      };
      wmClass = "jetbrains-webstorm";
      update-channel = "WebStorm RELEASE";
  