Awesome to see!
We've been encouraging Graphistry users to look at Streamlit for the low-code side (and getting bundled into our next release for public+private pydata GPU dashboarding!) or Databricks dashboards. Then at the expense of significantly more code / complexity without going full Flask/Django, we generally recommend switching to Dash/Voila/etc for getting way more control. Mercury seems quite close to the Streamlit/Databricks side, which in our experience is right for many pydata dashboarding teams yet most tools don't really nail. It may even be on the path to one-upping streamlit on the simplicity side. Good job & will be tracking!