Server, acceptor and handle client inputs

[fossil hare]

That acceptor function doesn't make sense

You want to flip it:

acceptor_loop(LSock) -> % You do not need port there
  {ok, Sock} = gen_tcp:accept(LSock),
  spawn(fun() -> handle(Sock) end),
  acceptor_loop(LSock).

handle(Sock) ->
  {ok, Data} = gen_tcp:recv(Sock, 0),
  % Do something with `Data`
  handle(Sock). % If you want to listen for more messages