added wpaperd and started on otter

modules/features/hypr/default.nix

@@ -0,0 +1,53 @@
+{
+  self,
+  inputs,
+  ...
+}: {
+  flake.nixosModules.hypr = {
+    pkgs,
+    lib,
+    ...
+  }: {
+    programs.hypr = {
+      enable = true;
+      package = self.packages.${pkgs.stdenv.hostPlatform.system}.hyprland;
+    };
+  };
+  perSystem = {
+    pkgs,
+    lib,
+    self',
+    ...
+  }: {
+    packages = {
+      hyprland = inputs.hyprland.packages.${pkgs.stdenv.hostPlatform.system}.default;
+      wpaperd = let
+        config-file = builtins.toFile "config.toml" ''
+          [any]
+          path = "${./wallpapers}"
+
+          [HDMI-A-1]
+          path = "${./wallpapers/topo1.png}"
+
+          [DP-1]
+          path = "${./wallpapers/topo2.png}"
+
+          [DP-2]
+          path = "${./wallpapers/topo3.png}"
+        '';
+      in
+        inputs.wrappers.lib.wrapPackage ({
+          config,
+          wlib,
+          lib,
+          ...
+        }: {
+          inherit pkgs;
+          package = pkgs.wpaperd;
+          flags = {
+            "--config" = config-file;
+          };
+        });
+    };
+  };
+}