This will check all fastverse packages (and their dependencies) for updates and (optionally) install those updates.
fastverse_update(..., install = FALSE, repos = getOption("repos"))arguments passed to fastverse_deps.
logical. TRUE will proceed to install outdated packages, whereas FALSE (recommended) will print the installation command asking you to run it in a clean R session.
character vector. Base URL(s) of the repositories to use, e.g., the URL of a CRAN mirror such as "https://cloud.r-project.org". 
The macro .fastverse_repos contains the URL of the fastverse r-universe server to check/install the development version of packages.
fastverse_update returns NULL invisibly.
if (FALSE) {
## Update from CRAN
fastverse_update()
## Update from R-Universe (development versions)
fastverse_update(repos = .fastverse_repos)
}