...by adding system-config-printer to services.dbus.packages (if services.printing.enable is true). Without this patch, trying to add a printer will result in a little dialog saying "Failed to add new printer" and gnome-control-center will print this to the terminal (line wrapped): (gnome-control-center:3546): printers-cc-panel-WARNING **: \ GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: \ The name org.fedoraproject.Config.Printing was not provided by any .service files system-config-printer supplies the "org.fedoraproject.Config.Printing" dbus service, thus fixing the problem.
				
					… 
				
			
			
		Nixpkgs is a collection of packages for the Nix package manager. It is periodically built and tested by the hydra build daemon as so-called channels. To get channel information via git, add nixpkgs-channels as a remote:
% git remote add channels git://github.com/NixOS/nixpkgs-channels.git
For stability and maximum binary package support, it is recommended to maintain
custom changes on top of one of the channels, e.g. nixos-16.03 for the latest
release and nixos-unstable for the latest successful build of master:
% git remote update channels
% git rebase channels/nixos-16.03
For pull-requests, please rebase onto nixpkgs master.
NixOS linux distribution source code is located inside
nixos/ folder.
- NixOS installation instructions
 - Documentation (Nix Expression Language chapter)
 - Manual (How to write packages for Nix)
 - Manual (NixOS)
 - Nix Wiki
 - Continuous package builds for unstable/master
 - Continuous package builds for 16.03 release
 - Tests for unstable/master
 - Tests for 16.03 release
 
Communication:
Description
				
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