I'm a bit averse to newly created accounts linking to nondescript plugins.

Here's a blog post discussing the plugin:

https://mikaelmayer.github.io/blog/2019-02-13-google-docs-fo...

> Have you ever wished you could synchronize content within one Google doc? Do you need temporary placeholders that you will replace later? Do you want to generate text? Do you miss spreadsheets in docs?

> If you answered yes to one of these questions, this Google doc extension is for you. It enables you to define names (a.k.a. variables) anywhere in the document, and to insert computations that produce rich text anywhere in the document.