chore: scaffold tap with glabels-qt formula

Formula/glabels-qt.rb

@@ -0,0 +1,30 @@
+class GlabelsQt < Formula
+  desc "gLabels Label Designer (Qt/C++) — Seth's packaging fork"
+  homepage "https://glabels.org"
+  url "https://git.sethpc.xyz/Seth/sethLabels.git",
+      tag:      "PLACEHOLDER_FILLED_AT_FIRST_RELEASE",
+      revision: "PLACEHOLDER_FILLED_AT_FIRST_RELEASE"
+  license "GPL-3.0-only"
+  head "https://git.sethpc.xyz/Seth/sethLabels.git", branch: "main"
+
+  depends_on "cmake"   => :build
+  depends_on "ninja"   => :build
+  depends_on "pkgconf" => :build
+  depends_on "qt"
+  depends_on "zlib"
+  depends_on "qrencode" => :recommended  # optional barcode backend
+  depends_on "zint"     => :recommended  # optional barcode backend
+
+  def install
+    system "cmake", "-S", ".", "-B", "build",
+           "-G", "Ninja",
+           "-DCMAKE_BUILD_TYPE=Release",
+           *std_cmake_args
+    system "cmake", "--build", "build"
+    system "cmake", "--install", "build"
+  end
+
+  test do
+    assert_match "gLabels", shell_output("#{bin}/glabels-batch-qt --version")
+  end
+end