[desktop] Sets up wpaperd to pull wallpaper from monitor-named folders

home-manager/features/wallpaper.nix

@@ -0,0 +1,15 @@
+monitors:
+{ ... }:
+{
+  wayland.windowManager.hyprland.settings.exec-once = [
+    "wpaperd"
+  ];
+
+  programs.wpaperd = {
+    enable = true;
+    settings = builtins.listToAttrs (map (mon: {
+      name = mon;
+      value = { path = "~/Pictures/Wallpaper/${mon}"; };
+    }) monitors);
+  };
+}