Possibly Elk? - there's a simple start notebook here: https://observablehq.com/@tmcw/elk https://observablehq.com/@tmcw/elk and example of more complex output h

Possibly Elk? - there's a simple start notebook here: https://observablehq.com/@tmcw/elk https://observablehq.com/@tmcw/elk and example of more complex output here: https://observablehq.com/@observablehq/notebook-visualizer-elk-edition https://observablehq.com/@observablehq/notebook-visualizer-e...