Repo with code written by following the instructions on how i start, and expanding on its ideas (also using the more updated version of :simple_one_for_one in `DynamicSupervisor)
Portal.shoot(:red)
Portal.shoot(:blue)
portal = Portal.transfer(:red, :blue, [1,2,3,4])
Portal.push_left(portal)
Portal.push_right(portal)
portal