I call myself the retiree from the back rooms of Indian politics. And I have been totally Claude Code pilled! Have been vibe-coding for the past year or so. Latest amongst them is a speech-to-text dictation app called Spill It!.
That's really cool. I tried to blog about it in the early days of the war and tried to show it in realtime as well. As you discovered, it's really expensive to get ship tracking APIs. So I also did something similar, where I took the JSON from Marine Traffic and mapped it onto a Mapbox map. I did a very rudimentary-ish job — I think what you created is much more refined.