MadMike,
If you’re already using node, tmi.js is obviously the easiest way to go about this, but it doesn’t really matter how you end up doing it because all you really need to do is be able to pass a variable to your animation.
With edge animate, you should be able to just set it up to accept a variable for the name to display on the sub alert, so all you have to do is pass the name of the subscriber to the function that fires the animation (I’m assuming that is what you were going for).