Deduplicate sockets by path

lib/peer.ex

@@ -4,11 +4,11 @@ defmodule Frajtano.Peer do
   use GenServer, restart: :temporary
 
   def start(path) do
-    DynamicSupervisor.start_child(Frajtano.Peer, {__MODULE__, path})
+    DynamicSupervisor.start_child(Frajtano.PeerSupervisor, {__MODULE__, path})
   end
 
   def start_link(path) do
-    GenServer.start_link(__MODULE__, path)
+    GenServer.start_link(__MODULE__, path, name: {:via, Registry, {Frajtano.Peers, path}})
   end
 
   @impl true