[aftbit]

I've also been playing with WS2812 LEDs as ambient/halo lighting around my monitor. I'm using a cheap ESP-32 dev board to allow control from my phone via WiFi even when my computer is asleep. I went much smaller though - only 16 pixels, powered by an old phone charger.

This works for now because my primary use-case is ambient lighting when the room would otherwise be dark. I'm planning to build some larger-scale higher-density light panels to provide more illumination for those dark winter days.