zef review
A free, open-source CLI for installing, resolving, testing, and upgrading Raku distributions.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
zef is an open-source command-line module manager for Raku developers and maintainers. It installs Raku distributions and their direct or transitive dependencies from configured repositories, URLs, Git repositories, local paths, and package identities. The tool also searches and inspects available distributions, making it useful for both adding dependencies and understanding what is already available in the Raku ecosystem.
Its package workflow covers more than installation. zef can update repository package indexes, fetch and extract sources, run distribution tests and build steps, upgrade installed distributions, and locate installed modules by identity, path, or SHA-1. This gives maintainers a single tool for common dependency and distribution tasks. Configuration is also broad: repositories, fetchers, extractors, builders, testers, and reporters can be configured to suit different workflows.
zef is a focused choice for Raku projects that need dependency resolution and distribution management without a commercial licensing model. Its scope is narrower than a package manager designed for multiple programming languages, and its command-line format is best suited to developers and maintainers rather than teams seeking a graphical administration experience. Choose zef for Raku distribution work involving repository packages, source archives, Git, or local development paths; consider a different category of tool when your main requirement is cross-language package management.
zef pros and cons
- Where it wins
- Resolves direct and transitive Raku dependencies
- Supports repositories, URLs, Git, tar.gz archives, and local paths
- Runs tests, build steps, upgrades, and module lookups
- Where it doesn't
- Focused on Raku rather than multi-language package management
- Command-line workflow is aimed at developers and maintainers
- Configuration spans repositories, fetchers, builders, testers, and reporters
zef fact sheet, pricing and score →
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