is it possible to stream the CRGB array over serial/i2c/spi to a slave's local

is it possible to stream the CRGB array over serial/i2c/spi to a slave’s local copy of the CRGB array so it can run fastled on its updated array?

The RGB data is stored in an array of size NUM_LEDS * 3
You could send it via serial like:

for (uint16_t i=0; i < NUM_LEDS; i++) {
Serial.write(leds[i].r); // Red channel data
Serial.write(leds[i].g); // Green channel data
Serial.write(leds[i].b); // Blue channel data
}

And for reading on slave:
Serial.readBytes( (char*)leds, NUM_LEDS * 3 );
FastLED.show();

yeah ijust thiught of that, i will pass it to my master/slave spi protocol streaming it so the remote slave can process it as its own array