Sway: Difference between revisions

Sway is a tiling Wayland compositor and a drop-in replacement for the i3 window manager for X11. It can work with an existing i3 configuration and supports most of i3's features, plus a few extras.  

[https://github.com/swaywm/sway/wiki/i3-Migration-Guide i3 migration guide]

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>.

To set up Sway using [[Home Manager]], first you must enable [[Polkit]] in your NixOS configuration:

Then you can enable Sway in your home manager configuration. Here is a minimal example:

=== Using greeter ===

Installing a greeter based on [https://search.nixos.org/options?channel=unstable&show=services.greetd.settings&from=0&size=50&sort=relevance&type=packages&query=greetd greetd] is the most straightforward way to launch Sway.

Tuigreet does not even need a separate compositor to launch.

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>When launched directly from the TTY sway won't inherit the user environment. This can cause issues with systemd user services such as application launchers or swayidle. To fix this add the following to your home-manager configuration:{{file|home.nix|nix|<nowiki>

Sway can be configured for specific users using Home-Manager or manually through configuration files. Default is <code>/etc/sway/config</code> and custom user configuration in <code>~/.config/sway/config</code>.

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>:

};|name=/etc/nixos/home.nix|lang=nix}}

<syntaxhighlight>

seat "*" xcursor_theme Adwaita 32

</syntaxhighlight>

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 = {

     home.pointerCursor = {

      name = "Adwaita";

      package = pkgs.adwaita-icon-theme;

      size = 24;

      x11 = {

        enable = true;

        defaultCursor = "Adwaita";

      sway.enable = true;

Replace <code>myUser</code> with your user running the graphical environment.

=== Missing fonts on Xorg applications ===

If fonts for certain languages are missing in Xorg applications (e.g. Japanese fonts don't appear in Discord) even though they're in the system, you can set them as default fonts in your configuration file.

When this happens on a new nixos system, enabling opengl in configuration.nix may fix this issue.   

=== Screen sharing with Firefox, Chromium ===

<syntaxhighlight lang="nix">

{ pkgs, ... }:

}

</syntaxhighlight>

=== Screen dimming with wl-gammarelay-rs ===