Impressive, congrats! I‘m building https://sql-workbench.com which is similar, but focussed on DuckDB WASM instead of SQLite… Love that you offer different databases.
Your tool has been awesome! Seeing what it can do inspired me to write a POC that connected to an enterprise IBM application that I used to implement: https://github.com/karbasia/tririga-data-workbench (also uses DuckDB and Perspective with some additional hacks to make it work with IBM's tool).
Have a look at https://sql-workbench.com eventually. It runs DuckDB WASM in the browser, and with Perspective, which is used for data visualization, you can also visualize timeseries.
You can either drag & drop data, or use remote data sources via https