At home, I have a strip of 287 WS2812Bs connected to a Raspberry Pi, that needs to be used as a light, mood lighting, and for notifications. I don't want to be a typical person and write a monolithic application, so `leet` is a simple gRPC server that renders basic opacity composition and buffered animations onto the LED strip. This also enables me to add aditional sources of data in the future from anywhere on my home network, including servers, phones and your IoT Blockchain AI appliances.