On Africa 54: U.S. President Joe Biden used his final presidential address before the United Nations General Assembly to urge unity in the face of challenges including conflicts in Ukraine, Gaza and Sudan. Plus, Nigerian digital content creator Zainab Zakari generates a buzz in the West African nation with her artistic creations from fruits and vegetables. She speaks to Africa 54 technology reporter Paul Ndiho. This and more news-related updates on today’s Africa 54!