tinytest, inline, rbenchmark, pkgKitten (>= 0.1.2)

Utilities for Scheduling Functions to Execute Later with Event
Loops

c(
    person("Winston", "Chang", role = c("aut", "cre"), email = "winston@rstudio.com"),
    person("Joe", "Cheng", role = c("aut"), email = "joe@rstudio.com"),
    person(family = "RStudio", role = "cph"),
    person("Marcus", "Geelnard", role = c("ctb", "cph"), comment = "TinyCThread library, https://tinycthread.github.io/"),
    person("Evan", "Nemerson", role = c("ctb", "cph"), comment = "TinyCThread library, https://tinycthread.github.io/")
    )

Executes arbitrary R or C functions some time after the current
    time, after the R execution stack has emptied. The functions are scheduled
    in an event loop.

Winston Chang [aut, cre],
  Joe Cheng [aut],
  RStudio [cph],
  Marcus Geelnard [ctb, cph] (TinyCThread library,
    https://tinycthread.github.io/),
  Evan Nemerson [ctb, cph] (TinyCThread library,
    https://tinycthread.github.io/)

Run CRAN URL Checks from Older R Versions

c(
    person("R Core team", role = "aut",
           comment = "The code in urltools.R adapted from the tools package"),
    person("Jim", "Hester", role = "aut",
           comment = c(ORCID = "0000-0002-2739-7082")),
    person("Gábor", "Csárdi", , "csardi.gabor@gmail.com", role = c("aut", "cre")),
    person("RStudio", role = c("cph", "fnd"))
  )

Provide the URL checking tools available in R 4.1+ as a
    package for earlier versions of R. Also uses concurrent requests so
    can be much faster than the serial versions.

R Core team [aut] (The code in urltools.R adapted from the tools
    package),
  Jim Hester [aut] (<https://orcid.org/0000-0002-2739-7082>),
  Gábor Csárdi [aut, cre],
  RStudio [cph, fnd]

Pretty, Human Readable Formatting of Quantities

Pretty, human readable formatting of quantities.
    Time intervals: '1337000' -> '15d 11h 23m 20s'.
    Vague time intervals: '2674000' -> 'about a month ago'.
    Bytes: '1337' -> '1.34 kB'.

Interactive Visualizations for Profiling R Code