feat: enable swww for wallpapers

users/myuser/graphical/default.nix

@@ -23,6 +23,7 @@
       ./waybar.nix
       ./rofi.nix
       ./swaync.nix
+      ./swww.nix
     ]
     ++ lib.optionals nixosConfig.graphical.gaming.enable [
       ./games

users/myuser/graphical/swww.nix

@@ -0,0 +1,39 @@
+{pkgs, ...}: {
+  systemd.user = {
+    services = {
+      swww = {
+        Unit = {
+          Description = "Wayland wallpaper daemon";
+          PartOf = ["graphical-session.target"];
+        };
+        Service = {
+          ExecStart = "${pkgs.swww}/bin/swww-daemon";
+          Restart = "on-failure";
+        };
+        Install.WantedBy = ["graphical-session.target"];
+      };
+      #swww-random = {
+      #  Unit = {
+      #    Description = "switch random wallpaper powered by swww";
+      #  };
+      #  Service = {
+      #    Type = "oneshot";
+      #    ExecStart = "${pkgs.swww-switch}/bin/swww-switch random";
+      #  };
+      #  Install = {
+      #    WantedBy = ["default.target"];
+      #  };
+      #};
+    };
+    #timers.swww-random = {
+    #  Unit = {
+    #    Description = "switch random wallpaper powered by swww timer";
+    #  };
+    #  Timer = {
+    #    OnUnitActiveSec = "60min";
+    #    OnBootSec = "60min";
+    #  };
+    #  Install = {WantedBy = ["timers.target"];};
+    #};
+  };
+}