Broadcast adapter backed by Erlang :pg process groups.
Messages are delivered to all members of a scope's :all_nodes group except
the sender, using :pg.get_members/2 + send/2.
Broadcast adapter backed by Erlang :pg process groups.
Messages are delivered to all members of a scope's :all_nodes group except
the sender, using :pg.get_members/2 + send/2.