I have finally gotten to the point where my intercom is working for me without any major issues!
That being said, it’s “works on my machine” quality - I don’t write javascript, HTML, or CSS so if anyone has feedback they can provide I would greatly appreciate it - even if it’s just “look at this and notice how they do it”.
This add-on right now isn’t integrated with HACS, it’s on the TODO list, but isn’t going to happen today. Install instructions are in the README, hopefully they’re right enough that anyone interested can give it a whirl.