This looks really nice! I currently use LiveCode (which isn't Python-based) for my daily "I have a bunch of data I'm looking to filter/transform/clean up" tasks. I'm always on the lookout for a similar tool, which for me means:

   1. Text inputs (table/spreadsheet inputs?)
   2. Text outputs
   3. Buttons
   4. Menus
   5. Sliders
   6. Checkboxes/radio buttons

And bonus points for:

   7. bundle it up and give it to someone else to run

I think out of that list you have 2, 3, and 5? https://docs.scripton.dev/api/interact/user-interfaces/widge...

Any chance you'll push further into the build-a-UI-to-muck-with-data realm?