Unexpected Characters in .env File

Was just attempting to start a Docker instance from scratch for the first time. I downloaded the release, copied the .env file, generated the passwords, and then attempted to stand up the instance with docker-compose, when I get the error
unexpected character "!" in variable name near "to Web Chat!\\n\\n..."
This should work out of the box, right? Or am I missing something here?

I have the same problem but I was going to upgrade jitsi.