Google AI Studio has a Gallery[0] with some similar apps. It's an editor so you can view the code, they are usually react apps with gemini integration via genai package. Like this one here[1] is similar. It generates interesting stories to share about a route you are driving / walking / biking along. This is one of the pre-made examples I believe, I didn't make it or anything. Just to show some how some of this might work.

[0] https://aistudio.google.com/apps?source=showcase&showcaseTag...

[1] https://aistudio.google.com/apps/bundled/echo_paths?showPrev...