anchor.diff:      %%
       case os:getenv("PEER_PORT", "false") of
           "false" ->
  -            %% No-op.
  +            partisan_config:set(peer_port, random_port()),
               ok;
           PeerPort ->
               partisan_config:set(peer_port, list_to_integer(PeerPort)),
  
positive.code:     end,
  
      ClientSpecs ++ ServerSpecs.
  
negative.code:     %%
      case os:getenv("WEB_PORT", "false") of
          "false" ->
              lasp_config:set(web_port, random_port()),
              ok;
          WebPort ->
              lasp_config:set(web_port, list_to_integer(WebPort)),
  