Migrate Installed R Packages Between R Versions R package courieR version 0.2.2 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 via 'subprocess', 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 one-way and two-way migration. Software 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) Suggests: shiny (>= 1.8.0), bslib (>= 0.7.0), bsicons (>= 0.1.2), DT (>= 0.31), stringr (>= 1.5.0), testthat (>= 3.0.0), withr (>= 3.0.0), mockery (>= 0.4.4), knitr (>= 1.45), rmarkdown (>= 2.26) Lennon Li <yeli@biostats.ai> Comprehensive R Archive Network (CRAN) Lennon Li [aut, cre] MIT + file LICENSE (https://CRAN.R-project.org/package=courieR/LICENSE) 2026-06-04 application/tgz https://CRAN.R-project.org/package=courieR doi:10.32614/CRAN.package.courieR en-US