This project lets you create your own Ambient Lighting (just like Ambilight) for your Mac, using an Arduino microcontroller (e.g. Arduino, ESP8266) and LED-Strips supported by FastLED (e.g. WS2812B)
I have searched a lot for solutions like this, but I couldn't find any for macOS that weren't outdated. I think there are plenty of alternatives for Windows.
The setup can be done using the GUI:
- Setup the Image Source: So far only ScreenCapture is supported, you can select witch display should be used. HDMI Grabber Support to be added soon).