anchor.diff:      boehmgc
       clang
       docker
  +    dottyLocal # (Tentative Scala 3 compiler)
       dbus # needed non-explicitly by vscode
       emacs
       git
  
positive.code:     ideaLocal
      less
      libunwind
      nodejs
      openjdk
      openssh
  
negative.code:       sha256 = "6649ec545093be46ebf2bf2d76e4b67597b2c92ea9ad80fe354db130994de45e";
      };
    };
    dottyLocal = stdenv.mkDerivation {
      name = "dotty-local";
      buildInputs =  [ ];
      builder = builtins.toFile "builder.sh" ''
        source $stdenv/setup
        mkdir -p $out/bin
        tar zxvf $src -C $out/
        ln -sf $out/dotty-* $out/dotty
        ln -sf $out/dotty/bin/* $out/bin/
      '';
      src = fetchurl {
        url = https://github.com/lampepfl/dotty/releases/download/0.3.0-RC2/dotty-0.3.0-RC2.tar.gz;
        sha256 = "1359843e19ac25b1dc465bfb61d84aeb507476bca57a46d90a111454e123ab29";
      };
    };
  in { scalaEnv = buildEnv {
    name = "scala-env";
    paths = [
  