- Comprehensive README with historical background, specs, and manufacturing options
- Project directory structure for CAD, electronics, software, manufacturing
- Initial Raspberry Pi firmware for button control with MQTT integration
- References document with sources, archives, and CAD starting points
- Support for modular armrest expansion (OLED, NFC, haptic feedback)
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>