nixos/modules/home-manager/sway.nix

{
  config,
  pkgs,
  lib,
  ...
}: {
  home.packages = with pkgs; [
    waybar # status bar
    swaylock # screen locking
    swayidle # automatic screen locking after system idle time
    kanshi # hotswap displays
    foot # terminal
    keepassxc # used for secrets instead of gnome-keyring
  ];

  wayland.windowManager.sway = {
    enable = true;
    systemd = {
      enable = true;
      xdgAutostart = false;
    };

    wrapperFeatures = {
      gtk = true;
    };

    config = {
      input = {
        "*" = {
          xkb_layout = "de";
          xkb_options = "caps:ctrl_modifier";
          xkb_numlock = "enable";
        };
        "type:touchpad" = {
          tap = "enable";
          natural_scroll = "enable";
        };
      };
      modifier = "Mod4";
      keybindings = let
        modifier = config.wayland.windowManager.sway.config.modifier;
      in
        lib.mkOptionDefault {
          # brightness
          "XF86MonBrightnessDown" = "exec ${pkgs.light}/bin/light -U 5";
          "XF86MonBrightnessUp" = "exec ${pkgs.light}/bin/light -A 5";
          # volume
          "XF86AudioRaiseVolume" = "exec '${pkgs.pulseaudio}/bin/pactl set-sink-volume @DEFAULT_SINK@ +1%'";
          "XF86AudioLowerVolume" = "exec '${pkgs.pulseaudio}/bin/pactl set-sink-volume @DEFAULT_SINK@ -1%'";
          "XF86AudioMute" = "exec '${pkgs.pulseaudio}/bin/pactl set-sink-mute @DEFAULT_SINK@ toggle'";

          # custom pause mode similar to typical system shutdown menus
          "${modifier}+F12" = "mode pause-break";
        };
      # use foot as default terminal
      terminal = "foot";
      assigns = {
        "1" = [{app_id = "firefox";}];
        "2" = [{app_id = "foot";}];
      };
      bars = [];
      menu = "${pkgs.tofi}/bin/tofi-drun | ${pkgs.findutils}/bin/xargs swaymsg exec --";
      fonts = {
        names = ["FiraCode Nerd Font"];
        size = 11.0;
      };
      modes = {
        pause-break = {
          e = "exec --no-startup-id swaymsg exit, mode default";
          s = "exec --no-startup-id ${pkgs.dash}/bin/dash -c '${pkgs.swaylock}/bin/swaylock & systemctl suspend-then-hibernate', mode default";
          r = "exec --no-startup-id systemctl reboot";
          End = "exec --no-startup-id systemctl poweroff";
          Return = "mode default";
          Escape = "mode default";
        };
      };
      startup = [
        {command = "dbus-sway-environment";}
        {command = "configure-gtk";}
        {command = "${pkgs.keepassxc}/bin/keepassxc";}
        {command = "${pkgs.waybar}/bin/waybar";}
        {command = "${pkgs.foot}/bin/foot";}
        {command = "${pkgs.firefox}/bin/firefox";}
      ];
    };
  };

  programs.waybar = {
    enable = true;
    settings = {
      mainBar = {
        layer = "top";
        position = "top";
        height = 26;
        modules-left = ["sway/workspaces" "sway/mode"];
        modules-right = ["sway/language" "clock" "battery"];

        "sway/language" = {
          format = "{shortDescription}";
          tooltip = false;
        };

        "clock" = {
          interval = 60;
          format = "{:%a %d.%m %I:%M}";
        };
      };
    };
    style = ''
      * {
        border: none;
        border-radius: 0;
        padding: 0;
        margin: 0;
        font-size: 11px;
      }

      window#waybar {
        background: #292828;
        color: #ffffff;
      }

      #workspaces button {
        margin-right: 10px;
        color: #ffffff;
      }
      #workspaces button:hover, #workspaces button:active {
        background-color: #292828;
        color: #ffffff;
      }
      #workspaces button.focused {
        background-color: #383737;
      }

      #language {
        margin-right: 7px;
      }

      #battery {
        margin-left: 7px;
        margin-right: 3px;
      }
    '';
  };

  services.kanshi = {
    enable = true;
    profiles = {
      laptop.outputs = [
        {
          criteria = "eDP-1";
          position = "0,0";
        }
      ];
      dock_luhbots.outputs = [
        {
          criteria = "eDP-1";
          position = "0,1080";
        }
        {
          criteria = "Dell Inc. DELL U2422HE GRCPH83";
          position = "0,0";
        }
        {
          criteria = "NEC Corporation E243WMi 7X313185NB";
          transform = "90";
          position = "1920,0";
        }
      ];
      laptop_hannspree.outputs = [
        {
          criteria = "eDP-1";
          position = "320,1440";
        }
        {
          criteria = "HannStar Display Corp HC281UPB ";
          position = "0,0";
          mode = "3840x2160@60";
          scale = 1.5;
        }
      ];
    };
  };

  # Theming
  gtk = {
    enable = true;
    cursorTheme = {
      package = pkgs.capitaine-cursors;
      name = "capitaine-cursors-white";
      size = 24;
    };
    iconTheme = {
      package = pkgs.whitesur-icon-theme;
      name = "WhiteSur-dark";
    };
    theme = {
      package = pkgs.whitesur-gtk-theme;
      name = "WhiteSur-Dark";
    };
    gtk3.extraConfig = {
      gtk-dialogs-use-header = false;
      gtk-cursor-theme-size = 0;
      gtk-toolbar-style = "GTK_TOOLBAR_BOTH_HORIZ";
      gtk-toolbar-icon-style = "GTK_ICON_SIZE_LARGE_TOOLBAR";
      gtk-button-images = 0;
      gtk-menu-images = 0;
      gtk-enable-event-sounds = 0;
      gtk-enable-input-feedback-sounds = 1;
      gtk-xft-antialias = 1;
      gtk-xft-hinting = 1;
      gtk-xft-hintstyle = "hintslight";
      gtk-xft-rgba = "none";
    };
  };
  home.pointerCursor = {
    package = pkgs.capitaine-cursors;
    name = "capitaine-cursors-white";
    size = 24;
    x11.enable = true;
    x11.defaultCursor = "capitaine-cursors-white";
  };
  xsession.enable = true;
}