Code Crisis: The GTK4 Migration

As the newly hired senior C++ developer with experience in gtkmm4, you're tasked with migrating the Inkscape codebase to the newer and better GTK4 framework. With the clock ticking, conflicts abound, and hundreds of files to change, you must work with an Inkscape expert to oversee the project and multiple senior developers to consult. Your skills and expertise are critical to the success of this complex endeavour.