anchor.diff:  
     webstorm = buildWebStorm rec {
       name = "webstorm-${version}";
  -    version = "2021.2.3"; /* updated by script */
  +    version = "2021.3"; /* updated by script */
       description = "Professional IDE for Web and JavaScript development";
       license = lib.licenses.unfree;
       src = fetchurl {
         url = "https://download.jetbrains.com/webstorm/WebStorm-${version}.tar.gz";
  -      sha256 = "0d79x1jz4ymd6cc1n4s3y3n8lb6gw4g0yj6d4qzjlr5c9snx3zdf"; /* updated by script */
  +      sha256 = "1llz97r95xrf7yixgbfipg153qikkxziwwhv9dvvi29v7pi1k4ys"; /* updated by script */
       };
       wmClass = "jetbrains-webstorm";
       update-channel = "WebStorm 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-community = buildIdea rec {
      name = "idea-community-${version}";
      version = "2021.3"; /* updated by script */
      description = "Integrated Development Environment (IDE) by Jetbrains, community edition";
      license = lib.licenses.asl20;
      src = fetchurl {
        url = "https://download.jetbrains.com/idea/ideaIC-${version}.tar.gz";
        sha256 = "0xrhgqbsyd2plzkkmy00bwsa8dk4ijszmhmbyn6c9ygl01zhji6y"; /* updated by script */
      };
      wmClass = "jetbrains-idea-ce";
      update-channel = "IntelliJ IDEA RELEASE";
  