Laptop backlight configuration

configurations/laptop/configuration.nix

@@ -33,6 +33,7 @@
       networkmanager_dmenu # Network Manager dmenu script
       wdisplays # Manage wayland displays
       wlsunset # Day/night gamma adjustment/filter for wayland
+      light # GNU/Linux application to control backlights
       sway-contrib.grimshot # Screenshot tool for wayland
       mako # Notification Daemon
       wlprop # Clone of X11 xprop for wayland (To get window class names etc)
@@ -119,6 +120,20 @@
     xdg-user-dirs
   ];
 
+  security.sudo = {
+    extraRules = [
+      {
+        commands = [
+          {
+            command = "/run/current-system/sw/bin/light";
+            options = [ "NOPASSWD" ];
+          }
+        ];
+        groups = [ "wheel" ];
+      }
+    ];
+  };
+
   environment.sessionVariables = {
     TERM = "foot";
     QT_QPA_PLATFORM = "wayland-egl";

configurations/laptop/resources/home-manager/.config/sway/config

@@ -101,6 +101,10 @@ gaps outer 5
     # Lock screen
     bindsym Mod4+l exec swaylock -c 000000
 
+    # Brightness Controls
+    bindsym XF86MonBrightnessUp exec sudo light -A 10
+    bindsym XF86MonBrightnessDown exec sudo light -U 10
+
     # Drag floating windows by holding down $mod and left mouse button.
     # Resize them with right mouse button + $mod.
     # Despite the name, also works for non-floating windows.
@@ -259,4 +263,8 @@ bar {
 include /etc/sway/config.d/*
 
 # Autostart
+
+# London Longitude/Latitude
+exec wlsunset -l 51.5 -L -0.1
+
 exec qpwgraph