init

main.cpp

@@ -0,0 +1,7 @@
+#include "hello_world.hpp"
+#include <gtkmm/application.h>
+
+int main(int argc, char *argv[]) {
+    auto app = Gtk::Application::create("org.gtkmm.example");
+    return app->make_window_and_run<learn_gtkmm4::HelloWorld>(argc, argv);
+}