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Guix-London's GuixSocial is Looking for Speakers
(octodon.social)
GNU Guix is a purely functional package manager, and associated free software distribution, for the GNU system.
In addition to standard package management features, Guix supports transactional upgrades and roll-backs, unprivileged package management, per-user profiles, and garbage collection.
A user-land free software distribution for GNU/Linux comes as part of Guix.