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   };
   };
}
}
</syntaxhighlight>
</syntaxhighlight>By default, the Sway module in NixOS comes with a set of extra packages, including the <code>foot</code> terminal, <code>swayidle</code>, <code>swaylock</code>, and <code>wmenu</code>, which can be configured under  <code>[https://search.nixos.org/options?show=programs.sway.extraPackages programs.sway.extraPackages]</code> option. You may also want to include <code>wl-clipboard</code> for clipboard functionality and <code>slurp</code> for screenshot region selection. Additionally, for a more customizable bar implementation than <code>sway-bar</code>, <code>waybar</code> can be enabled with <code>programs.waybar.enable</code>.
 
The default Sway configuration is symlinked to <code>/etc/sway/config</code> and <code>/etc/sway/config.d/nixos.conf</code>. The latter file contains dbus and systemd configuration that is critical to using apps that depend on XDG desktop portals with Sway, and should be included in any custom configuration files.


A few general comments:
A few general comments:
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=== Using Home Manager ===
=== Using Home Manager ===
To set up Sway using [[Home Manager]], first you must enable [[Polkit]] in your nix configuration:
To set up Sway using [[Home Manager]], first you must enable [[Polkit]] in your NixOS configuration:
{{file|/etc/nixos/configuration.nix|nix|<nowiki>
{{file|/etc/nixos/configuration.nix|nix|<nowiki>
security.polkit.enable = true;
security.polkit.enable = true;
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   wayland.windowManager.sway = {
   wayland.windowManager.sway = {
     enable = true;
     enable = true;
    wrapperFeatures.gtk = true; # Fixes common issues with GTK 3 apps
     config = rec {
     config = rec {
       modifier = "Mod4";
       modifier = "Mod4";
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You might need to active dbus manually from .zshrc to use i.e: dunst, see [https://discourse.nixos.org/t/dunst-crashes-if-run-as-service/27671/2 Dunst crashes if run as service]
You might need to active dbus manually from .zshrc to use i.e: dunst, see [https://discourse.nixos.org/t/dunst-crashes-if-run-as-service/27671/2 Dunst crashes if run as service]
{{Note|
It's recommended to enable a [[Secret Service]] provider, like GNOME Keyring:
{{file|home.nix|nix|<nowiki>
services.gnome-keyring.enable = true;
</nowiki>}}
}}


=== Systemd services ===
=== Systemd services ===
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Tuigreet does not even need a separate compositor to launch.
Tuigreet does not even need a separate compositor to launch.


{{file|/etc/nixos/configuration.nix|nix|<nowiki>
{{file|||<nowiki>
services.greetd = {                                                       
services.greetd = {                                                       
   enable = true;                                                         
   enable = true;                                                         
   settings = {                                                           
   settings = {                                                           
     default_session = {                                                   
     default_session = {                                                   
       command = "${pkgs.greetd.tuigreet}/bin/tuigreet --time --cmd sway";
       command = "${pkgs.tuigreet}/bin/tuigreet --time --cmd sway";
       user = "greeter";                                                   
       user = "greeter";                                                   
     };                                                                   
     };                                                                   
   };                                                                     
   };                                                                     
};                                                                       
};                                                                       
</nowiki>}}
</nowiki>|name=/etc/nixos/configuration.nix|lang=nix}}
 
=== Automatic startup on boot ===
The snippet below will start Sway immediately on startup, without a greeter and '''without login prompt'''. Only consider using this in conjunction with [[Full Disk Encryption]]!
 
<syntaxhighlight lang="nix">
services.getty = {
  autologinUser = "your_username";
  autologinOnce = true;
};
environment.loginShellInit = ''
    [[ "$(tty)" == /dev/tty1 ]] && sway
'';
</syntaxhighlight>


== Configuration ==
== Configuration ==
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=== Keyboard layout ===
=== Keyboard layout ===
Changing layout for all keyboards to German (de)<syntaxhighlight lang="console">
Changing layout for all keyboards to German (de):<syntaxhighlight lang="console">
input * xkb_layout "de"
input * xkb_layout "de"
</syntaxhighlight>The same thing accomplished in Home Manager:<syntaxhighlight lang="nix">
wayland.windowManager.sway.input."*".xkb_layout = "de";
</syntaxhighlight>
</syntaxhighlight>


=== High-DPI scaling ===
=== High-DPI scaling ===
Changing scale for all screens to factor 1.5<syntaxhighlight lang="console">
Changing scale for all screens to factor 1.5:<syntaxhighlight lang="console">
output * scale 1.5
output * scale 1.5
</syntaxhighlight>
</syntaxhighlight>


=== Brightness and volume ===
=== Brightness and volume ===
If you are on a laptop, you can set up brightness and volume function keys as follows:
You can set up brightness and volume function keys as follows by binding the key codes to their corresponding commands in your sway config. The following configurations accomplish this using <code>light</code> and <code>pulseaudio</code>:
{{file|/etc/nixos/configuration.nix|nix|<nowiki>
{{file|/etc/nixos/configuration.nix|nix|<nowiki>
users.users.yourusername.extraGroups = [ "video" ];
users.users.yourusername.extraGroups = [ "video" ];
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== Troubleshooting ==
== Troubleshooting ==


=== Cursor is too tiny on HiDPI displays ===
=== Cursor is missing icons or too tiny on HiDPI displays ===


Using [[Home Manager]] try configuring a general mouse cursor size and theme
Using [[Home Manager]] try configuring a general mouse cursor size and theme. The reason that your cursor might be missing in some applications, is because <code>XCURSOR_THEME</code>is missing, which will cause applications relying on <code>XWAYLAND</code> to misbehave. Setting <code>sway.enable = true</code>, combined with the <code>name</code>, <code>package</code> and size will set the correct environment variables, which sway will then use.
 
<syntaxhighlight lang="nix>
 
home-manager.users.myUser = {


<syntaxhighlight lang="nix">home-manager.users.myUser = {
     home.pointerCursor = {
     home.pointerCursor = {
       name = "Adwaita";
       name = "Adwaita";
       package = pkgs.gnome.adwaita-icon-theme;
       package = pkgs.adwaita-icon-theme;
       size = 24;
       size = 24;
       x11 = {
       x11 = {
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         defaultCursor = "Adwaita";
         defaultCursor = "Adwaita";
       };
       };
      sway.enable = true;
     };
     };
 
};</syntaxhighlight>
};
</syntaxhighlight>


Replace <code>myUser</code> with your user running the graphical environment.
Replace <code>myUser</code> with your user running the graphical environment.
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When this happens on a new nixos system, enabling opengl in configuration.nix may fix this issue.   
When this happens on a new nixos system, enabling opengl in configuration.nix may fix this issue.   
{{Note|<code>hardware.opengl</code> was renamed to <code>hardware.graphics</code> in NixOS 24.11.}}


<syntaxhighlight lang="nix">
<syntaxhighlight lang="nix">
hardware.opengl.enable = true;
hardware.graphics.enable = true;
</syntaxhighlight>
</syntaxhighlight>


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   };
   };
</syntaxhighlight>
</syntaxhighlight>
=== GTK apps take an exceptionally long time to start ===
This occurs because GTK apps make blocking calls to freedesktop portals to be displayed. If Sway is not integrated with dbus and systemd, it will not be able to communicate via the <code>org.freedesktop.portal.Desktop</code> portal. To fix this, see the [[Sway#Using NixOS|description]] of default Sway configurations earlier. Adding the following to your sway configuration, if it is not already present, may resolve the issue:
include /etc/sway/config.d/*
== Tips and tricks ==
== Tips and tricks ==


Retrieved from "https://wiki.nixos.org/wiki/Sway"