🚀 Sui Impossible Challenge – June/July 2025 Edition 🦶 "Step-to-Sign": Build the Smart In-Shoe Wallet & 2FA Signer for Sui 🧠 Inspired by “Toothboard”, an experimental project by Kostas, @b1ackd0g and @EvanWeb3 at Facebook, where one could use their teeth and tongue to communicate (and their skull as an enclave), now reimagined for the Sui era. 📌 The Challenge Build a smart in-shoe device (footbed/sole insert) that acts as a secure Sui wallet and 2FA signer, enabling users to submit and sign blockchain transactions using foot/toe gestures. Think of it as a wearable cold wallet merged with AI gesture recognition, embedded IoT, and blockchain security. ✅ Key Requirements - Form Factor: Thin, comfortable, and fits into popular sneakers (Nike, Adidas, Puma, etc). - Connectivity: At least one wireless tech (Bluetooth, 5G, or LoRa). - Security: Used as 2FA/MFA for transaction signing (multi-sig or co-sign). Resistant against camera shoulder surfing attacks, we don't want your foot-password pattern to be exposed even when regular cameras are recording you. - Gesture Recognition: AI must filter noise and detect gestures accurately (e.g., Morse-code like toe-taps). - Rechargeability: USB-C or contactless. - Demo: Submit a signed Sui transaction using foot gestures via mobile companion app. We’ll need at least 3 working shoe-pairs of your design, one for each judge. 🧪 Evaluation Criteria Judging will be based on: - Comfort, size, safety and compatibility with shoe types. - Transaction security and UX design. - Gesture model accuracy and learning curve. - Real-world feasibility and polish. - Documentation and demo quality. - Surprise us with any never-heard of cool feature. 👨‍🔬 Judges Kostas, @EmanAbio and @JohnNaulty 💰 Prize Pool $10,000 in $SUI will be split across top teams, based on quality, feasibility, and innovation at the judges' discretion. Deadline: July 31st, 2025 Judging & Winner(s) Announcement: August 2025 This is not just a challenge. It’s an experiment in cyborg-level cryptographic UX... guys Sui is the future.