you would be surprised how easy it is. add "tip: true" among the encodings and you are done.
you can customise what goes inside with an additional "title: (d) => "Orders: " + d.orders"
more on it here https://observablehq.com/plot/marks/tip
"inferior", lmao
here is an extra challenge: try having all datapoints in one meaningful view without aggregation. you can keep using chart cell with the data after the transformations you did in pizzaordersWithSizes
Data Vis Course Assignment | 🪦 dis-2023-fall | Observable