31 lines
1.2 KiB
XML
31 lines
1.2 KiB
XML
<chapter xmlns="http://docbook.org/ns/docbook"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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version="5.0"
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xml:id="sec-package-management">
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<title>Package Management</title>
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<para>
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This section describes how to add additional packages to your system. NixOS
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has two distinct styles of package management:
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<itemizedlist>
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<listitem>
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<para>
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<emphasis>Declarative</emphasis>, where you declare what packages you want
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in your <filename>configuration.nix</filename>. Every time you run
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<command>nixos-rebuild</command>, NixOS will ensure that you get a
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consistent set of binaries corresponding to your specification.
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</para>
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</listitem>
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<listitem>
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<para>
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<emphasis>Ad hoc</emphasis>, where you install, upgrade and uninstall
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packages via the <command>nix-env</command> command. This style allows
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mixing packages from different Nixpkgs versions. It’s the only choice
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for non-root users.
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</para>
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</listitem>
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</itemizedlist>
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</para>
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<xi:include href="declarative-packages.xml" />
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<xi:include href="ad-hoc-packages.xml" />
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</chapter>
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