11ty curly braces and nunjucks

In trying to share posts about using Nunjucks templating engine in 11ty I came unstuck when creating posts with the curly brackets that are used by Nunjucks. I'd either get and error or it would do the substitute.
I thought using backticks might work but that didn't help. A bit of searching and I found an issue on the Nunjucks repo about the curly brackets. This seems to be the only way to do it and I also found that it was documented as such.

{% raw %}
{{ text to escape}}
{% endraw %}

This is a bit meta but I had to use the above example to escape the code I was trying to show about how to escape the code I wanted to post about. Read that 3 times to try and understand what I am talking about as I still don't