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courieR: Migrate Installed R Packages Between R Versions

Detects all R installations on the current machine and migrates installed R packages between them. Provides find_routes() to discover R versions, manifest() to scan package libraries in a child R process, inventory() to compare two libraries, and ship() to install packages into a target R version using 'pak'. Includes a Shiny dashboard (open_hub()) for interactive source-to-target migration.

Version: 0.3.1
Imports: processx (≥ 3.8.0), callr (≥ 3.7.0), pak (≥ 0.7.0), jsonlite (≥ 1.8.0), desc (≥ 1.4.0), fs (≥ 1.6.0), cli (≥ 3.6.0), data.table (≥ 1.14.0), shiny (≥ 1.8.0), shinyjs (≥ 2.1.0), bslib (≥ 0.7.0), bsicons (≥ 0.1.2), DT (≥ 0.31)
Suggests: stringr (≥ 1.5.0), testthat (≥ 3.0.0), withr (≥ 3.0.0), mockery (≥ 0.4.4), knitr (≥ 1.45), rmarkdown (≥ 2.26), pkgdown (≥ 2.0.0), shinytest2 (≥ 0.3.0), chromote (≥ 0.1.0)
Published: 2026-06-14
DOI: 10.32614/CRAN.package.courieR
Author: Lennon Li ORCID iD [aut, cre], Claude Fable [ctb] (AI co-author (Anthropic)), Claude Opus [ctb] (AI co-author (Anthropic)), Claude Sonnet [ctb] (AI co-author (Anthropic)), OpenAI Codex [ctb] (AI co-author (OpenAI))
Maintainer: Lennon Li <yeli at biostats.ai>
BugReports: https://github.com/lennon-li/courieR/issues
License: MIT + file LICENSE
URL: https://lennon-li.github.io/courieR/, https://github.com/lennon-li/courieR
NeedsCompilation: no
Language: en-US
Materials: README, NEWS
CRAN checks: courieR results

Documentation:

Reference manual: courieR.html , courieR.pdf
Vignettes: Getting Started with courieR (source, R code)
Testing Guidelines and Platform Status (source, R code)

Downloads:

Package source: courieR_0.3.1.tar.gz
Windows binaries: r-devel: courieR_0.3.1.zip, r-release: courieR_0.3.1.zip, r-oldrel: courieR_0.3.1.zip
macOS binaries: r-release (arm64): courieR_0.3.1.tgz, r-oldrel (arm64): courieR_0.3.1.tgz, r-release (x86_64): courieR_0.3.1.tgz, r-oldrel (x86_64): courieR_0.3.1.tgz
Old sources: courieR archive

Linking:

Please use the canonical form https://CRAN.R-project.org/package=courieR to link to this page.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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