Author here, I created and alpha-launched https://comments.network/ a while back, but have since officially discontinued it and you should really not depend on it. I am considering open source-ing it, would that be interesting at all?

Ah, something like this has been on my TODO list forever, would greatly appreciate it!

I'd also like to have this open-sourced to integrate into my blog.

Yes, please. Would use it for my blog.