Today I came across an article on how to connect Google Analytics to your Gatsby site using dotenv. I found this resource to be super helpful and easy to follow.
You clearly don't want to paste your Google Analytics tracking info in your build code. So dotenv is a great way to securely connect your data.
I also recently just began to use Netlify, but I am baffled at how easy it is to get builds up and running on the web using this tool.