System/modules/sway.nix

## Enable and setup SwayWM
{ config, pkgs, unstable, ... }:
{
  # Turn on GDM for login
  services.xserver = {
    enable = true;
    autorun = true;
    displayManager.gdm = {
      enable = true;
      wayland = true;
    };
    # Set swaywm as default
    displayManager.defaultSession = "sway";
    # Enable plasma for the applications
    desktopManager.plasma5.enable = true;
  };
  # Setup drivers
  hardware.opengl = {
    # Enable vulkan
    driSupport = true;
    # Force vulkan drivers
    extraPackages = [
      pkgs.amdvlk
    ];
    # Same as above, but enable 32 bit legacy support (for games)
    driSupport32Bit = true;
    extraPackages32 = [
      pkgs.driversi686Linux.amdvlk
    ];
  };
  # Basic packages that are effectively required for a graphical system
  environment.systemPackages = with pkgs; [
    # GTK Theming
    gtk-engine-murrine
    gtk_engines
    gsettings-desktop-schemas
    lxappearance
    kde-gtk-config
  ];
  # Enable QT themeing
  programs.qt5ct.enable = true;
  # Enable and configure sway itself
  programs.sway = {
    enable = true;
    # Enable the wrapper for gtk applications
    wrapperFeatures.gtk = true;
    # Install some applications required for sway to work how I want
    extraPackages = with pkgs; [
      # Unstable waybar, its a fast moving target
      unstable.waybar
      # Locking and display management
      wdisplays
      swaylock-effects
      swayidle
      # Clipboard
      wl-clipboard
      # Notifications
      mako
      # Terminal
      alacritty
      # glib for sound stuff
      glib
      # Glpaper for the background
      glpaper
      # Screenshots
      sway-contrib.grimshot
      # Albert for launcher
      albert
    ];
    extraSessionCommands = ''
      # Make qt theming work
      export QT_QPA_PLATFORMTHEME="qt5ct"
      # Make pipewire present a pulse audio tcp port
      pactl load-module module-native-protocol-tcp
      # Make firefox use wayland
      export XDG_CURRENT_DESKTOP="sway"
    '';
  };

  environment.sessionVariables = {
    MOZ_ENABLE_WAYLAND = "1";
  };

  # Enable the xdg-portal
  xdg = {
    portal = {
      enable = true;
      extraPortals = with pkgs; [
        xdg-desktop-portal-wlr
        xdg-desktop-portal-gtk
      ];
      gtkUsePortal = true;
    };
  };

  ## Home manager stuff for sway
  home-manager.users.nathan = {
    # Configure sway itself
    wayland.windowManager.sway = {
      enable = true;
      systemdIntegration = true;
      wrapperFeatures = {
        base = true;
        gtk = true;
      };
      config = {
        # Setup gaps
        gaps = {
          smartGaps = true;
          inner = 9;
        };
        # disable borders
        window = {
          border = 0;
        };
        # Use windows key as modifier
        modifier = "Mod4";
        # Alacritty as default terminal
        terminal = "alacritty";
        # Use krunner (from kde) as our launcher
        menu = "albert show";
        # Use waybar
        bars = [{
          command = "${unstable.waybar}/bin/waybar";
        }];
        # Use fira code
        fonts = {
          names = [ "Fira Code Nerd Font" ];
          size = 10.0;
        };
      };
      extraConfig = ''
        exec albert
        exec mako
      '';
    };
    # Mako for notifications
    programs.mako = {
      enable = true;
      # Selenized color scheme
      borderColor = "#f275be";
      backgroundColor = "#184956";
      textColor = "#adbcbc";
      # Border configuration
      borderSize = 3;
      # Timeout to 5 seconds
      defaultTimeout = 5000;
      # Use Fira Code for font
      font = "Fira Code Nerd Font 10";
      # Group by application
      groupBy = "app-name";
      # Bottom right corner
      anchor = "bottom-right";
    };
  };
}