nixpkgs/nixos/doc/manual/from_md/configuration/wayland.chapter.xml

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<chapter xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="sec-wayland">
<title>Wayland</title>
<para>
While X11 (see <xref linkend="sec-x11" />) is still the primary
display technology on NixOS, Wayland support is steadily improving.
Where X11 separates the X Server and the window manager, on Wayland
those are combined: a Wayland Compositor is like an X11 window
manager, but also embeds the Wayland 'Server' functionality. This
means it is sufficient to install a Wayland Compositor such as sway
without separately enabling a Wayland server:
</para>
<programlisting language="bash">
programs.sway.enable = true;
</programlisting>
<para>
This installs the sway compositor along with some essential
utilities. Now you can start sway from the TTY console.
</para>
<para>
If you are using a wlroots-based compositor, like sway, and want to
be able to share your screen, you might want to activate this
option:
</para>
<programlisting language="bash">
xdg.portal.wlr.enable = true;
</programlisting>
<para>
and configure Pipewire using
<xref linkend="opt-services.pipewire.enable" /> and related options.
</para>
</chapter>