Fix: Picom in its own file

hm/common/picom.nix

@@ -0,0 +1,51 @@
+{ pkgs, ... }: {
+  home.packages = pkgs.picom ;
+  services.picom = {
+    enable = true;
+    backend = "glx"; # plus fluide si ta carte gère bien OpenGL
+    fade = true;
+    fadeDelta = 5; # vitesse fondu
+    shadow = true;
+    shadowOpacity = 0.5;
+    vSync = true; # évite le tearing
+
+    settings = {
+      # Transparence
+      inactive-opacity = 0.80;
+      active-opacity = 0.9;
+      frame-opacity = 0.90;
+      inactive-opacity-override = false;
+
+      # Coins arrondis
+      corner-radius = 8;
+      round-borders = 1;
+      rounded-corners-exclude = [
+        "class_g = 'Polybar'"
+        "class_g = 'Rofi'"
+      ];
+
+      # Flou subtil
+      blur-method = "dual_kawase";
+      blur-strength = 4;
+      blur-background = true;
+      blur-background-frame = true;
+      blur-background-fixed = false;
+      blur-background-exclude = [
+        "class_g = 'Polybar'"
+        "class_g = 'Rofi'"
+        "class_g = 'Gimp'"
+        "window_type = 'dock'"
+      ];
+
+      # Exclusions ombres
+      shadow-exclude = [
+        "class_g = 'Polybar'"
+        "class_g = 'Rofi'"
+        "window_type = 'dock'"
+        "window_type = 'desktop'"
+      ];
+    };
+  };
+}
+# vim: set ts=2 sw=2 sts=2 et :
+