Adding external libraries after dragging custom block

Hi,

I am customizing GrapesJS by creating components/blocks my users can drag onto the canvas. A number of these blocks depend upon external libraries like Bootstrap and FontAwesome.. Is there a way to check to see if the necessary dependencies are included on a page, and if not, add them to the page?

Here is what I already know. I am hoping that someone can help me fill in the gaps of my GrapesJS understanding, or point me in a helpful direction.

1. I am aware that I can tap into drag and drop events when a user places a block on a page. However, I can only tap into the 'block:drag:stop' event for some reason. And if I try to add my library dependencies to the page at this point, I end up clearing out all of my page content. Obviously I am trying to add my dependencies too soon and need to wait until the block renders on the page before operating on the page. Is there a known way of how to do that? Or would this be something unique to my GrapesJS project?

2. I also know that you can add script dependencies for blocks. is there a way to leverage that?

If I cannot add the necessary markup to include my dependencies when a user drags a block on a page, is there a way to notify the user "Hey, you need to include these dependencies..."?

Thanks for your attention.