is there a way to insert variable values inside the mjml file like the name of the person?

[PManager1]

Is there a way to insert variable values inside the mjml file like the name of the person?
When I run the mjml var_1 = "Mark Gold" filename.mjml -o file.html

It should replace the var_1 inside the mjml file with "Mark Gold".

[iRyusa]

This has been replied multiple time you can find some answers here #1630
You can plug anything to MJML with a bit of works there's few project listed in this issue but this won't be provided by MJML as it's a markup language.