Popups

When adding a layer you can include for the ability for that layer to have popups.

map() |>
  add_symbol_layer(
    id = "marker-layer",
    source = sf::st_as_sf(
      data.frame(
        lat = c(-41.306579555227245),
        long = c(174.82263228933076),
        popup = c("Hello!")
      ),
      coords = c("long", "lat"),
      crs = 4326
    ),
    popup_column = "popup"
  )