Cast without SSL?

I’ve been running Hassio for a few months now and I’m very happy so far. I’m running it on ubuntu so I do not have supervisor etc unfortunately. Even though I would’ve loved to.

I’m running Hassio in a docker container and I want to cast my dash to my Nest hub, which requires a https connection that I do not have. I’ve already followed multiple guides on how to install self-signed certificates on Ubuntu but none of them seem to have worked. It’s very frustrating.

Is there a way to cast my dashboard to my hub without SSL?