@exobucks Best bet is to integrate the js code in your plugin itself, so all admins have to do is enable your plugin and that's that.
In your plugin you can execute your code in a client-side js file, and read the value of a configured ID from the plugin settings (if needed). You can see how this is done by inspecting how the Google Analytics plugin handles it:
Yes, its doable. On my roadmap for the blog comments plugin is an adapter to allow it to work for any unique page (be it a blog, video, etc) rather than write a unique adapter for each software as I am doing now.
It's in the long term though, if you're willing to sponsor development I'd move it up otherwise stay tuned 🙂