  R packages are the fundamental units of reproducible code in R, providing a
mechanism for distributing user-developed code, documentation, and data. Docker
is a virtualization technology that allows applications and their dependencies
to be distributed and run reproducibly across platforms. The pracpac package
provides an interface to create Docker images that contain custom R packages.
The pracpac package leverages the renv package management tool to ensure
reproducibility by building dependency packages inside the container image
mirroring those installed on the developer's system. The pracpac package can be
used to containerize any R package to deploy with other domain-specific non-R
tools, Shiny applications, or entire data analysis pipelines. The pracpac
package is available on CRAN (https://cran.r-project.org/package=pracpac), and
source code is available under the MIT license on GitHub
(https://github.com/signaturescience/pracpac).
