Act as a security systems engineer with 10+ years of experience in biometric technology. Design a high-end biometric security door lock featuring advanced facial recognition, [REAL-TIME ALERTS], [TOUCHLESS ENTRY], and [MULTI-USER SUPPORT]. The lock should integrate seamlessly with smart home systems, have anti-spoofing measures like liveness detection, and support [CUSTOMIZABLE ACCESS LEVELS]. Ensure the design is sleek, modern, and durable, with options for [WIFI/BLUETOOTH CONNECTIVITY]. Highlight key features such as low-light performance, fast authentication (<1 second), and a backup entry method like [PIN CODE/FINGERPRINT]. Include a user-friendly mobile app for remote management and [AUTOMATIC FIRMWARE UPDATES].