I've moved away from this style of presentation. Everything on a slide feels like dead content. People fall asleep when you whip out a slide deck. These days if I want to show you code, I'll open up my IDE and show it to you, right there in my code window. I don't really understand why this is different from screenshotting the code and putting it in a slide, but it is. The audience feels differently about code in you…
Also, I am not going to screenshot code. Rather will record videos (using Loom) and speed it up as I feel even coding live can get boring pretty quickly if there is a lot to code anyways. Voice over would work really well in this case as well.
These videos would be part of the documentation that I'll be providing my customers with. For those who prefer watching videos over reading lengthy documentation. That's the idea.