xiaozhi-esp32/main/boards/esp-box-3/config.json

{
    "target": "esp32s3",
    "builds": [
        {
            "name": "esp-box-3",
            "sdkconfig_append": [
                "CONFIG_USE_DEVICE_AEC=y",
                "CONFIG_USE_EMOTE_MESSAGE_STYLE=y",
                "CONFIG_FLASH_CUSTOM_ASSETS=y",
                "CONFIG_CUSTOM_ASSETS_FILE=\"https://dl.espressif.com/AE/wn9_nihaoxiaozhi_tts-font_puhui_common_20_4-esp-box-3.bin\""
            ]
        }
    ]
}