GTK4 Migration Madness

You play as the newly hired senior C++ developer with experience in gtkmm who has been brought on to drive the GTK4 migration for Inkscape. Along with an Inkscape expert, you will navigate the complexity of the migration process, ensuring that the C++ bindings are adequate and the migration is performed as quickly as possible. But be warned, with hundreds of files in the codebase to change, conflicts will arise if not performed quickly enough. Can you and your team beat the clock and successfully drive the GTK4 migration in just 16 weeks?