Yup, I think it would be a big help if the home page ('/') was a landing page explaining who it's for and why, and why. Is this for students? For prototyping? For quick analysis? Sample data? Importing real data? Use cases are key.

And then have a big hero button leading to the the actual tool ('/app' or '/playground' or whatever). Maybe preloaded with different sample data depending on the use case.

Right now, being dumped into a complicated interface with zero explanation is very confusing. (None of this is to criticize the project itself, just to help identify it to the people who might find the most value in it!)