macOS 10.12.6 Docker App Kitematic

Has anyone else installed NextCloud on macOS using the Docker App and Kitematic?

If so how did you resolve the SSL issue in the Admin section warnings:

"Security & setup warnings

It’s important for the security and performance of your instance that everything is configured correctly. To help you with that we are doing some automatic checks. Please see the Tips & Ticks section and the documentation for more information.

You are accessing this site via HTTP. We strongly suggest you configure your server to require using HTTPS instead as described in our security tips."

Is there a guide or directions that anyone knows about that I can use to install a Lets Encrypt Certificate so I can access NextCloud via https?

Could someone help, I don’t wish to waste peoples time so any suggestions or pointing me in the right direction will be really appreciated.

Thank you very much.

Edit: Does anyone know anything about using NextCloud with Docker/Kitematic on macOS (OS X) at all? Any help is really really appreciated!!!