This is looking good, @johnarban! One thing I'm noticing is that the zoom level doesn't seem to get taken back in when I use the copied url.

This:
http://localhost:8080/?lat=42.3448&lon=-71.1243&zoom=11&t=1733661360000

Gets turned into this:
http://localhost:8080/?lat=42.3448&lon=-71.1243&zoom=4&t=1733661360000
(so the zoom level is reverting to 4 even though I specified 11.)

Another question I have is whether, instead of having the url explicitly change continuously as I pan around, whether it would be less distracting to the user to make a "share" button like we have on the eclipse stories? (and is there any sort of extra cost, either in terms of computational performance or any sort of mapbox credits for continuously displaying the info in the url)?

Fixed the zoom issue (I searched for z instead of zoom).

@patudom - There is no (or incredibly little) additional overhead in updating the url, and it's an easy way to copy the url. We could have a button as well, but I know for me, I often copy urls from the toolbar. It only updates after a change, not while dragging or zooming, and doesn't require any mapbox calls.