# Configuration for the Picom Compositor { config, ... }: { services = { picom = { enable = true; backend = "glx"; fade = true; inactiveOpacity = 0.8; menuOpacity = 0.8; opacityRules = [ "100:class_g = 'XScreenSaver'" ]; settings = { use-ewmh-active-win = true; }; vSync = true; }; }; }