We use cloudex in our phoenix application (it's been very handy, by the way) and a few weeks a go we found a problem trying out phoenix_live_dashboard , more information in:

https://github.com/phoenixframework/phoenix_live_dashboard/issues/156

despite it was a problem with phoenix_live_dashboard the main reason was that cloudex first process is a GenServer instead of a supervisor, is there any plan to change this?

additional information:

https://github.com/elixir-lang/elixir/issues/10096