Modules/Niri: Add wallpaper switcher keybindings

home/homemodules/niri/default.nix

@@ -600,6 +600,14 @@ in {
               action = spawn "neovide" "${config.paths.dotfiles}/flake.nix";
               hotkey-overlay = {title = "Edit the NixFlake.";};
             };
+            "Mod+W" = {
+              action = spawn "waypaper" "--backend" "swaybg" "--fill" "fill";
+              hotkey-overlay = {title = "Open wallpaper chooser.";};
+            };
+            "Mod+Shift+W" = {
+              action = spawn "waypaper" "--backend" "swaybg" "--fill" "fill" "--monitor" "All";
+              hotkey-overlay = {title = "Switch wallpaper.";};
+            };
 
             "Mod+A" = {
               action = spawn "walker" "-m" "desktopapplications";