anchor.diff:  
     rider = buildRider rec {
       name = "rider-${version}";
  -    version = "2020.3.4"; /* updated by script */
  +    version = "2021.1"; /* updated by script */
       description = "A cross-platform .NET IDE based on the IntelliJ platform and ReSharper";
       license = lib.licenses.unfree;
       src = fetchurl {
         url = "https://download.jetbrains.com/rider/JetBrains.Rider-${version}.tar.gz";
  -      sha256 = "1v99yqj83aw9j400z3v24n7xnyxzw5vm0b3rwd4yb8w3ajl59gq1"; /* updated by script */
  +      sha256 = "089j52sig2ac21v6zl9mvb7x4sr9c428nn930b41y3qd6bg52xxx"; /* updated by script */
       };
       wmClass = "jetbrains-rider";
       update-channel = "Rider RELEASE";
  
positive.code: 
    idea-community = buildIdea rec {
      name = "idea-community-${version}";
      version = "2020.3.3"; /* updated by script */
      description = "Integrated Development Environment (IDE) by Jetbrains, community edition";
      license = lib.licenses.asl20;
      src = fetchurl {
        url = "https://download.jetbrains.com/idea/ideaIC-${version}.tar.gz";
        sha256 = "1msfl8qq0aday4ssip73r0y096mrb89mr7z2j4mpqhkzgsmvpjk0"; /* updated by script */
      };
      wmClass = "jetbrains-idea-ce";
      update-channel = "IntelliJ IDEA RELEASE";
  
negative.code: 
    mps = buildMps rec {
      name = "mps-${version}";
      version = "2020.3.3"; /* updated by script */
      description = "Create your own domain-specific language";
      license = lib.licenses.asl20;
      src = fetchurl {
        url = "https://download.jetbrains.com/mps/2020.3/MPS-${version}.tar.gz";
        sha256 = "0sb50f7d4272dzx84njc326xvhbqn3xwrphvdq4zl3pk3wl8f4nz"; /* updated by script */
      };
      wmClass = "jetbrains-mps";
      update-channel = "MPS RELEASE";
  