As the newly hired senior C++ developer with experience in gtkmm, you are responsible for leading the essential steps of the GTK4 migration for Inkscape. Working closely with an Inkscape expert, you must manage the complex migration project, ensure that the C++ bindings are adequate, and mitigate conflicts that may arise during the process. Your success will determine whether the migration is completed in time, and whether Inkscape can maintain a competitive edge in the graphic design software arena.