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nem.

nem
Free, open source

Reproducible dev environments.

For you, your teams, and your agents.

Get Started

Use nem

For developers. Each project gets its own package versions, switched automatically as you change directories. Commit nem.toml and nem.lock and teammates, pipelines, and coding agents install exactly the same packages, same versions, same digests.

Manage a catalog

For operators. Mirror the official catalog or publish your own into a registry you control, air-gapped networks included. Installs are checksum-verified and never need root, fit for regulated environments.

Write packages

For maintainers. One manifest per package: where versions and artifacts come from, how they install, how they are built from source and tested.