Create a standalone Touch ID sensor that connects via USB-C or wirelessly to work with any external keyboard, allowing users to have biometric authentication without being forced to use Apple's Magic Keyboard.

Currently, Touch ID on Mac is only available on Apple's built-in keyboards (MacBook) or the Magic Keyboard, forcing users who prefer mechanical keyboards, ergonomic layouts, or other third-party options to sacrifice biometric convenience. This hardware restriction appears designed to drive accessory sales rather than serve user needs.

A standalone Touch ID reader would:

• Enable biometric authentication with any keyboard setup
• Support multiple finger enrollments like existing Touch ID implementations
• Work seamlessly with existing Touch ID APIs and authentication flows
• Allow placement anywhere on the desk for optimal ergonomics
• Provide the same security and convenience benefits regardless of keyboard choice

This would restore user choice in peripherals while maintaining Apple's security standards.

Community Innovation: Enthusiasts have already demonstrated the viability of this concept by hacking existing Touch ID hardware to work as standalone devices, showing there's both demand and technical feasibility for official Apple support.