fastverse, data.table, magrittr, kit, xts, zoo, plm, fixest,
vars, RcppArmadillo, RcppEigen, tibble, dplyr, ggplot2, scales,
microbenchmark, testthat, covr, knitr, rmarkdown

Interactive Collapsible Tree Diagrams using 'D3.js'
Adeel Khan [aut, cre], Michael Bostock [ctb, cph] (D3.js library)
Interactive Reingold-Tilford tree diagrams created using 'D3.js', where every node can be expanded and collapsed by clicking on it.
Tooltips and color gradients can be mapped to nodes using a numeric column in the source data frame.
See 'collapsibleTree' website for more information and examples.

c(
person("Adeel", "Khan", email = "AdeelK@gwu.edu", role = c("aut", "cre")),
person("Dhrumin", "Shah", role = "ctb"),
person("Mike", "Bostock", role = c("ctb", "cph"), comment = "D3.js library, http://d3js.org")
)
Adeel Khan [aut, cre],
Dhrumin Shah [ctb],
Mike Bostock [ctb, cph] (D3.js library, http://d3js.org)

colorspace, RColorBrewer, dplyr, testthat, tibble

person("James", "Goldie", email = "me@rensa.co", role = c("aut", "cre"), comment = c(ORCID = "0000-0002-5024-6207"))
The purrr package allows you to capture the side effects (errors, warning, messages and other output) of functions using safely() and quietly(). Using collateral, you can quickly see which elements of a list (or list-column) returned results, which threw errors and which returned warnings or other output.
dplyr, knitr, magrittr, rmarkdown, tidyverse

c(
person("James", "Goldie",
email = "me@jamesgoldie.dev",
role = c("aut", "cre"),
comment = c(ORCID = "0000-0002-5024-6207")),
person("Jean-Francois", "Zinque",
email = "jzinque@gmail.com",
role = "ctb"),
person("Mikhail", "Balyasin",
email = "mikhail.balyasin+blog@gmail.com",
role = "ctb"))
Map functions while capturing results, errors, warnings, messages and other output tidily, then filter and summarise data frames or lists on the basis of those side effects.
dplyr, tibble, tidyr, furrr, ggplot2, knitr, rmarkdown,
testthat
James Goldie [aut, cre] (<https://orcid.org/0000-0002-5024-6207>),
Jean-Francois Zinque [ctb],
Mikhail Balyasin [ctb]