28 lines
1.2 KiB
XML
28 lines
1.2 KiB
XML
<chapter xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude" 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
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system. NixOS has two distinct styles of package management:
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</para>
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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
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packages you want in your <literal>configuration.nix</literal>.
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Every time you run <literal>nixos-rebuild</literal>, NixOS will
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ensure that you get a consistent set of binaries corresponding
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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
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uninstall packages via the <literal>nix-env</literal> command.
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This style allows mixing packages from different Nixpkgs
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versions. It’s the only choice for non-root users.
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</para>
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</listitem>
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</itemizedlist>
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<xi:include href="declarative-packages.section.xml" />
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<xi:include href="ad-hoc-packages.section.xml" />
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</chapter>
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