- Introduced support for Arduino UNO R3, UNO R4 Minima, and simulation environments.
- Added `.board-config` for board-specific configuration.
- Created `MULTI_BOARD_QUICK_REFERENCE.md` for quick development guidance.
- Added `MULTI_BOARD_TESTING.md` for comprehensive cross-platform testing procedures.
- Updated `README.md` with detailed multi-board support and workflow instructions.
- Enhanced platform-specific code handling in `main.cpp` for compatibility with AVR and Renesas architectures.
james.maes
3fc7e22b31