Kid-Safe Keyboard Locker & Interactive Overlay

The user's request for a robust keyboard lock for a baby highlights a common problem for parents or pet owners who need to keep their computer running (e.g., watching a video) but prevent accidental input. Current solutions are often inconvenient (unplugging, physical toys) or incomplete. A modern SaaS application, 'Kid-Safe Keyboard Locker', could provide a comprehensive solution. Key features would include: full keyboard lock (disabling all keys, including system shortcuts) with a customizable, secure unlock mechanism (e.g., a specific key combo or simple math problem); optional mouse click locking; and, critically, an interactive screen overlay. This overlay could display fun, non-functional animations or simple games that react to button presses without affecting the underlying OS, entertaining the child while the computer remains 'locked.' Monetization could be a low-cost subscription for premium features like the interactive overlay, advanced unlock options, and scheduling, with basic locking available free. This addresses a clear, persistent pain point for a segment of computer users.