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Railpack Docs

Installing Additional Packages

Railpack supports installing additional versioned packages from Mise, or packages from Apt.

Mise

You can set the RAILPACK_PACKAGES environment variable to install additional packages from Mise.

For example, this installs the latest versions of Node and Bun, and Python 3.10.

Terminal window
RAILPACK_PACKAGES="node bun@latest [email protected]"

You can find a list of available packages in the Mise registry.

Apt

Apt packages are split into those needed for the build and those needed at runtime.

You can set the RAILPACK_BUILD_APT_PACKAGES and RAILPACK_DEPLOY_APT_PACKAGES environment variables to install additional Apt packages during the build and deployment steps respectively.

In this example, we install build-essential during the build step and ffmpeg at runtime.

Terminal window
RAILPACK_BUILD_APT_PACKAGES="build-essential"
RAILPACK_DEPLOY_APT_PACKAGES="ffmpeg"