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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@maze1980
Visible is easy, readable is harder. Shading helps, as known for traffic lights. And more LEDs help, I'd go with 144 LEDs per meter strips, not with individual LEDs. And you'll need cooling, a custom PCB with a hole below each LED and a powerful fan in the back sucking in air from the front would help - or just don't go to 100% brightness (R+G+B) for too long.