Like a Jupyter notebook but for satellite imagery? I think a good number of people may have taken your idea and ran with it :)

Google Earth Engine, Astraea, Descartes Labs, and a whole host of other companies have demonstrated a ton of value in this space, so you're absolutely correct. There's definitely work to be done fusing in other data sources like AIS, but I think the foundation is set.

Let us know if you end up building it - we'd be more than happy to float you some test data!