cpp11, BH (>= 1.75.0), later, systemfonts
testthat, xml2 (>= 1.0.0), fontquiver (>= 0.2.0)
testthat, xml2 (>= 1.0.0), fontquiver (>= 0.2.0), knitr,
rmarkdown
testthat, xml2 (>= 1.0.0), knitr, rmarkdown, covr, future,
httr, jsonlite