guix - 1.2.0-4+deb11u2 main

Guix is an advanced distribution of the GNU operating system
developed by the GNU Project—which respects the freedom of computer
users.
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Guix supports transactional upgrades and roll-backs, unprivileged
package management, and more. When used as a standalone distribution,
Guix supports declarative system configuration for transparent and
reproducible operating systems.
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It provides Guile Scheme APIs, including high-level embedded
domain-specific languages (EDSLs) to define packages and whole-system
configurations.