anchor.diff:      MNode     = ?config(middleman_node, Config),
       LNode     = ?config(leech_node, Config),
       Fn        = ?config(data_filename, Config),
  -    %% Transmission's working directory
       SNodeDir = filename:join([PrivDir,  seed]),
       LNodeDir = filename:join([PrivDir,  leech]),
       MNodeDir = filename:join([PrivDir,  middleman]),
  
positive.code:     LNode     = ?config(leech_node, Config),
      Fn        = ?config(data_filename, Config),
      TrackerPid = start_opentracker(DataDir),
      %% Transmission's working directory
      SNodeDir = filename:join([PrivDir,  seed]),
      LNodeDir = filename:join([PrivDir,  leech]),
      CNodeDir = filename:join([PrivDir,  choked_seed]),
  
negative.code:     SNode     = ?config(seed_node, Config),
      LNode     = ?config(leech_node, Config),
      Fn        = ?config(data_filename, Config),
      TrackerPid = start_opentracker(DataDir),
      SNodeDir = filename:join([PrivDir,  seed]),
      LNodeDir = filename:join([PrivDir,  leech]),
  