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A secure One Device Login System using Firebase where users log in with a key generated by the admin. Supports instant device register, key expiry validity, admin force logout, and user ban control — designed for fast authentication with ultra-low bandwidth.

one device login firebase device authentication single device login system admin generate login key key based login firebase force logout system ban user admin control firebase fast authentication anti multi login protection device lock login app

Thanks for Bedardi Bhai (SketchPro Hub Team member)......