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+---------------------+ | User Apps (C) | ← Snake, SMS, Music, Settings +---------------------+ | Application Loader| ← Simple .napp binary format +---------------------+ | Nile UI Engine | ← Direct framebuffer, 8-bit color +---------------------+ | Hardware HAL | ← Keypad, LCD, SPI, I2C drivers +---------------------+ | NuttX / RIOT OS | ← Real-time kernel +---------------------+ | Bootloader shim | ← Unlock + load custom firmware +---------------------+ nokia 3310 custom rom
Here is a Product Requirement Document for the Related search suggestions will be generated next