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This is a submission for the Permit.io Authorization Challenge: API-First Authorization Reimagined Table of Contents What I Built How It Works (Step-by-Step Flow) Demo My Journey API-First Authorization ESP32 Code (Arduino) PHP Proxy for Permit.io (ESP32 Integration) Conclusion What I Built Castle of Keys is an interactive, real-world access control game inspired by medieval castles and powered by externalized authorization using Permit.io. Players assume roles like King, Cook, or Servant and attempt to access different levels of a castle. Access is controlled by external policies — not hardcoded logic.

May 3, 2025 - 23:53
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This is a submission for the Permit.io Authorization Challenge: API-First Authorization Reimagined

Table of Contents

  • What I Built
    • How It Works (Step-by-Step Flow)
  • Demo
  • My Journey
  • API-First Authorization
    • ESP32 Code (Arduino)
    • PHP Proxy for Permit.io (ESP32 Integration)
  • Conclusion

What I Built

Castle of Keys is an interactive, real-world access control game inspired by medieval castles and powered by externalized authorization using Permit.io.

Players assume roles like King, Cook, or Servant and attempt to access different levels of a castle. Access is controlled by external policies — not hardcoded logic.

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