Act as a product designer with 5+ years of experience in AI-driven beauty tech. Design an AI-based nail polish applicator that allows users to apply flawless, salon-quality polish at home. The device should feature [AI-PRECISION NOZZLES] for streak-free application, [CUSTOM DESIGN LIBRARY] with thousands of pre-loaded patterns (or upload your own), and [SMART COLOR MATCHING] to recommend shades based on skin tone or outfit. Include a touchscreen interface for easy navigation and a compact, ergonomic design. The applicator should be compatible with most nail polish brands and offer [REAL-TIME CORRECTION] to fix mistakes instantly. Highlight how this innovation saves time, reduces waste, and empowers users to create professional nail art effortlessly.