olny comments

I run a website : https://www.livetony.com
and I was wondering…is it possible to only use comment-script(or what’s it called) on my site. So for example:

I have videos on my site, is it possoble to use comments below them because my website is not a blog or anything like that…So I only use the comment-script in my site, is that possible?
and if it is, how do I do it?

Thanks ??
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Tony
LiveTony.com