AI PCs with Neural Processing Units (NPUs) are becoming common in technology, enabling innovative applications that utilize on-device AI. Microsoft's Windows AI APIs facilitate easy integration of AI into applications, requiring only a Copilot+ PC with a capable NPU. Lance McCarthy, a Microsoft MVP, highlights tools available for developers, including Phi Silica for local language modeling, AI Text Recognition for OCR, and AI Imaging tools for image processing. McCarthy's Xkcd Viewer app exemplifies these tools, featuring AI-powered image descriptions for visually impaired users, which enhance the experience beyond simple text readouts. The modification of the app took ten minutes and significantly improved user accessibility.