Checking out the competition, 20,000 neopixels with an ESP32

Yves has done it again, after adding 22 pin neopixel output on ESP32, he further spliced each pin by making it run shift registers to run multiple strips per individual pin:
Although the wiring must be a bit insane (80 lines, not counting power), this puts neopixels in the running for high pixel counts (although there is still the price and lack of density problem)