Used it (along with an arduino) to control RGB LED strips for my Deck Lights project. It was great fun, then I sold the house and moved!
Used Remi for a web control gui and platform.io on the rpi to be able to program the arduino headless.
https://www.youtube.com/watch?v=ww1q248jc7Q
https://github.com/kejaed/deckLights/blob/master/projectNote...