I love when folks combine technologies in a new domain and get neat results. This is a great little demo and probably a cool way to force yourself to learn the related technologies.

My first thought was that this could be pretty easily commercialized, which meant someone has probably already done it:

https://www.twinkly.com/

Here's the setup, actually seems like a pretty nice UX - https://www.youtube.com/watch?v=xMJ3bLBtGaQ

Edit: They sell them at BestBuy, brb lol