How to generate docx from a template in nodejs in a loop and concatenate the result into 1 file?

Question

Node.js

Submit an idea or share your experience on how to generate a document from a template, say 10 times and collect the result in 1 file?
There is, for example, pattern.docx with the content:

//1 страница
Какой-то текст... Привет {user}!

After processing, result.docx will be collected with the content:

//1 страница
Какой-то текст... Привет Name!

As a result, you need to get a file like:

//1 страница
Какой-то текст... Привет Name!
//2 страница
Какой-то текст... Привет Name2!

etc.
I watched different modules, some generate from scratch, others work with templates.
As I understand it, you need something in between, but there are not enough brains on how to achieve this.