I have a Leaflet map with this code : https://observablehq.com/@mavromatika/untitled/2

It uses an SVG layer on which I draw dots using D3. It is unclear to me how I could manage to make a tooltip appear when I hover over one of the dots. I don't know whether I should use Leaflet's .bindTooltip(), or some D3 code instead hooking the mouseover and mouseout events.