Oh man, I want lunar.fyi for windows, especially auto brightness, for multiple monitors based on ambient light.
Well, unfortunately that will never happen because the app would need a full rewrite using DirectX and WinAPI.
Fortunately there’s an open source alternative called TwinkleTray: https://github.com/xanderfrangos/twinkle-tray
Someone determined enough could add adaptive brightness to it. You can even use Lunar’s wireless ambient light sensor [1] for that as it’s simply sending lux values through Server Sent Events [2]
There's also Monitorian for Windows: https://github.com/emoacht/Monitorian