Is there any way to do remote control based on message queue where Home Assistant connects to a remote queue (e.g. cloud based queue) over long polling connection (or similar) to provide ways to control some selected automations?
I think at least some mobile broadband operators block inbound connections, so the usual methods of remote access may not work.
I could setup some message queue e.g. to Azure quite cheaply and do message queue and email based messaging to control some basics. E.g. I would like to start warming up the cabin remotely and also have some alerts if temperature drops, etc.