So, I saw a guy with.a suit of LEDs that he was controlling with is Cellphone and immediatelyvi had to have one.
But how to start? Buy a shlort of LEDs, wire ands couple of ardiuno’s ? Program like a fiend?

Nope.
Sylvania Mosaic LED strips for the win! Programmed colors and simple aniimation, all with an infrared remote. Water resistent, customizable length, what’s not to love. A little design, some solder and wire, Viòla!