[joshvm]

I think a nice workaround for this is to use something like a Jupyter Notebook (which also has bash support). You have all the commands pre-entered and you can step through as necessary.

If you need to add something because of an audience question you can just insert a new cell.

It looks live and in my opinion better than faffing in a terminal.

You also have the bonus of being able to provide the notebook to your audience after the talk (or they can follow along with you).