How do you make an addOn non-dependable?
 

I want to make the dominos castbar a non-dependable addOn, but I'm not sure how to do so... Can anyone help me?

What do you mean by non dependable ?

Non dependable on external addons/libraries ? Then you would have to write the functionality they offer yourself.

But seeing, in your case, that the Dominoes cast bar probably was written by someone else, all you can do is either ...

1. Learn how that portion works and write a cast bar addon yourself.
2. Find a cast bar addon that is the closest match to it.
3. But of course the primary question is, did you ask the Dominoes author if they were willing to separate the cast bar as a separate option or addon.

So, actually, do all those in reverse order and you should hopefully get what you want. But if you hit that last one where you learn how to make one yourself... it may take a bit longer :D