https://github.com/hyperion-project/hyperion.ng For a DIY version of Philips Ambilight is a really cool implementation of addressable LEDs.

The Wled project is another amazing implementation. It allows the creation of all sorts of light fixtures, there’s some insane setups on YouTube.

And the next step down that rabbit hole is xlights: https://github.com/xLightsSequencer/xLights