All opinions expressed are those of the presenter and not Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Kenilworth, NJ, USA.

• pkglite: compact package representations
• cleanslate: portable R environments
• pkglink: runtime package resolution

• A tool for packing and restoring R packages as plaintext assets that are easy to store, transfer, and review
• A grammar for specifying the file packing scope that is functional, precise, and extendable
• A standard for exchanging the packed asset that is unambiguous, human-friendly, and machine-readable

pkglite is available from CRAN

library("pkglite")

"/path/to/pkg/" %>%
  collate(file_ectd(), file_auto("inst/")) %>%
  pack()

pack(
  "/path/to/pkg1/" %>% collate(file_ectd()),
  "/path/to/pkg2/" %>% collate(file_ectd()),
  output = "/path/to/pkglite.txt"
)

"/path/to/pkglite.txt" %>% unpack(output = "/path/to/output/", install = TRUE)

Website: https://merck.github.io/pkglite/

• Create a project folder with specific context (.Rproj, .Rprofile, .Renviron)
• Install a specific version of R into the project folder
• Install a specific version of Rtools into the project folder
• (without administrator privileges)

library("cleanslate")

"portable-project/" %>%
  use_project(repo = "https://url/snapshot/2021-11-04/") %>%
  use_rprofile() %>%
  use_renviron() %>%
  use_r_version(version = "4.1.1") %>%
  use_rtools(version = "rtools40")

(Under validation)

• Infrastructure-free: install and load packages from any remote or local files, without CRAN-like repos or Git servers
• Package aliasing: compile, install, and load packages with aliases at runtime
• Vectorized loading: install and load multiple packages with one line of code

Single package from remote URL:

pkglink::import("mypkg", from = "https://url/mypkg@0.2.0.rpkg")

Local file and with alias:

pkglink::import("mypkg", as = "yourpkg", from = "/path/to/mypkg.rpkg")

Multiple packages but selectively:

pkglink::import(c("mypkg1", "mypkg3"), from = "https://url/mypkgs.rpkg")

Multiple packages with aliases:

pkglink::import(c("mypkg1", "mypkg2"), as = c("yourpkg1", "yourpkg2"), from = "mypkgs.rpkg")

(In development)