So as a developer, how do I get on the AI bandwagon?

The single best way to go from newbie ChatGPT to a running app.

So as a developer, how do I get on the AI bandwagon?

Let me point you to exactly one source that is doing an excellent job:
Adrian Twarog on Youtube, and this one video:

will teach you most of what you need to know in minutes. You're welcome!