Let's Encrypt with Google Home Emulated Hue

Configuration
1

I have a google home device with emulated hue which listens on port 80.
To my understanding, let’s encrypt also needs port 80 to verify domain before issuing a certificate.

Is it impossible to combine the two on the same hardware? (rpi3)

2

What I did for OpenHAB and trying now for Hassio is let Let’s Encrypt addon listen on another port (e.g. 8180) and just configure the router to forward Internet 80 to your RPi 8180.