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GNU Guix consists of Scheme code that implements the deployment model
of the Nix package management tool.  In fact, it currently talks to a
build daemon whose code comes from Nix (see the manual for details.)

Nix was initially written by Eelco Dolstra; other people have been
contributing to it.  See `nix/AUTHORS' for details.

The list of GNU Guix contributors is now generated from the output of
'git log' and written to this file, as can be seen in release tarballs.
s='msg-avail'>...* gnu/system.scm (operating-system-directory-base-entries): Return a regular, non-monadic value. * gnu/services.scm (system-derivation): Adjust accordingly. * gnu/system/linux-container.scm (container-essential-services): Likewise. Ludovic Courtès 2020-04-26services: profile: Use a declarative profile....* gnu/services.scm (packages->profile-entry): Use 'profile' instead of 'profile-derivation'. Ludovic Courtès 2020-04-21services: etc: Detect and report duplicate entries....Fixes <https://bugs.gnu.org/40729>. Reported by Christopher Baines <mail@cbaines.net>. * gnu/services.scm (files->etc-directory)[assert-no-duplicates]: New procedure. Use it. Ludovic Courtès 2020-04-05services: Allow modprobe to use "/etc/modprobe.d"....* gnu/services.scm (%modprobe-wrapper): Set 'MODPROBE_OPTIONS' environment variable. Signed-off-by: Danny Milosavljevic <dannym@scratchpost.org> Brice Waegeneire 2020-04-02services: Accumulate builds for 'system' entries....That way, more build requests are accumulated when running "guix system build". * gnu/services.scm (system-derivation): Use 'mapm/accumulate-builds' rather than 'sequence'. Ludovic Courtès 2019-12-07services: Add 'provenance-service-type'....* gnu/services.scm (object->pretty-string) (channel->code, channel->sexp, provenance-file) (provenance-entry): New procedures. (provenance-service-type): New variable. * gnu/system.scm (operating-system-with-provenance): New procedure. * doc/guix.texi (Service Reference): Document 'provenance-service-type'. Ludovic Courtès 2019-11-09services: 'fold-services' memoizes service values....Previously 'fold-services' could end up traversing the same services in the graph several times, which is what this change addresses. The hit rate on the 'add-data-to-store' cache goves from 9% to 8% on "guix system build desktop.tmpl -nd", and the number of lookups in that cache goes from 4458 to 4383. * gnu/services.scm (fold-services): Turn 'loop' into a monadic procedure in %STATE-MONAD and use it to memoize values of visited services. Ludovic Courtès 2019-08-14remote: Remove '--system' argument....* gnu/services.scm (activation-script): Return a <program-file> rather than a <scheme-file>. * gnu/deploy.scm (guix-deploy): Remove handling for '--system'. (show-help): Remove documentation for '--system'. (%default-options): Remove default setting for 'system'. Jakob L. Kreuze 2019-05-10services: 'gc-root-service-type' now has a default value....* gnu/services.scm (gc-root-service-type)[default-value]: New field. Ludovic Courtès