settings, httr, rmarkdown, utils, jsonlite, bookdown, stringr
settings, stats, httr2 (>= 1.2.0), pingr, websocket,
rmarkdown, later, utils, jsonlite, bookdown, stringr, stringi,
digest, htmlwidgets, rvest, knitr, base64enc, htmltools,
grDevices
leaflet, dplyr, testthat (>= 3.0.0), processx, ggplot2, grid