anchor.diff:        name = "editorEnv";
         paths = with self; [
           atom_beta
  -        sublime-text
         ];
       };
   
  
positive.code:     factorio-env = self.buildEnv {
        name = "factorioEnv";
        paths = with self; [
          factorio
        ];
      };
  
  
negative.code:         #goPackages.nomad.bin
          #goPackages.vault.bin
          #icedtea8_web
          libxml2
          ninja
          nodejs
          openjdk
  