Add nwg-dock-hyprland

Based on https://github.com/NixOS/nixpkgs/pull/201362

desktop/default.nix

@@ -9,6 +9,7 @@
     ./gtk
     ./hyprland
     ./mozc
+    ./nwg-dock
     ./pipewire
     ./rofi
     ./stylix

desktop/nwg-dock/default.nix

@@ -0,0 +1,7 @@
+{ pkgs, ... }:
+
+{
+  environment.systemPackages = with pkgs; [
+    (pkgs.callPackage ./package {})
+  ];
+}

desktop/nwg-dock/package/default.nix

@@ -0,0 +1,34 @@
+{ lib
+, buildGoModule
+, fetchFromGitHub
+, pkg-config
+, gtk3
+, gtk-layer-shell
+}:
+
+buildGoModule rec {
+  pname = "nwg-dock-hyprland";
+  version = "0.1.2";
+
+  src = fetchFromGitHub {
+    owner = "nwg-piotr";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-7vdfxE3X2J7bDLzose0dKmjxNQhS5+/ROky9wkK1gc0=";
+  };
+
+  vendorSha256 = "sha256-GhcrIVnZRbiGTfeUAWvslOVWDZmoL0ZRnjgTtQgxe2Q=";
+
+  ldflags = [ "-s" "-w" ];
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [ gtk3 gtk-layer-shell ];
+
+  meta = with lib; {
+    description = "GTK3-based dock for hyprland";
+    homepage = "https://github.com/nwg-piotr/nwg-dock-hyprland";
+    license = licenses.mit;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ dit7ya ];
+  };
+}