l baseX: manage brightness via acpilight

lass/2configs/baseX.nix

@@ -59,6 +59,7 @@ in {
 
   environment.systemPackages = with pkgs; [
     acpi
+    acpilight
     ag
     cabal2nix
     cholerab
@@ -81,7 +82,6 @@ in {
     termite
     xclip
     xephyrify
-    xorg.xbacklight
     xorg.xhost
     xsel
     zathura
@@ -94,6 +94,12 @@ in {
     xlibs.fontschumachermisc
   ];
 
+  services.udev.extraRules = ''
+    SUBSYSTEM=="backlight", ACTION=="add", \
+    RUN+="${pkgs.coreutils}/bin/chgrp video /sys/class/backlight/%k/brightness", \
+    RUN+="${pkgs.coreutils}/bin/chmod g+w /sys/class/backlight/%k/brightness"
+  '';
+
   services.xserver = {
     enable = true;
     layout = "us";