Take on the role of the senior C++ developer with experience in gtkmm and lead the essential steps of the GTK4 migration for Inkscape. Work closely with an Inkscape expert to ensure that C++ bindings are adequate, and manage conflicts that arise during the migration process. Utilize strategy and problem-solving skills to complete the migration as quickly and efficiently as possible. Race against time to ensure that other work that touches the user interface is not affected by conflicts.