If you're a software developer and need to create a presentation with a lot of code, I highly recommend you consider Slidev (by @antfu.me). Especially if you need to include TypeScript code!

Slidev is web-based presentation software made for software developers. It offers a wide variety of ways to present code in your slides, like highlighting specific code in sequence, displaying TypeScript type information in tooltips through Twoslash integration, a “magic move” feature that compares the before and after of your code with a cool animation, the ability to embed the Monaco editor, and more.

This was my first time using Slidev, but I was captivated by its rich feature set. You should give it a try too!