Refactor group management

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/configs/brightnessctl/default.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ config, lib, pkgs, ... }:
 
 {
   environment.systemPackages = with pkgs; [ brightnessctl ];
@@ -14,4 +14,14 @@
       ACTION=="add", SUBSYSTEM=="leds",      RUN+="${chgrp} input /sys/class/leds/%k/brightness"
       ACTION=="add", SUBSYSTEM=="leds",      RUN+="${chmod} g+w   /sys/class/leds/%k/brightness"
     '';
+
+  users.groups =
+    let
+      members = builtins.attrNames
+        (lib.attrsets.filterAttrs (_: config: config.isNormalUser) config.users.users);
+    in
+    {
+      video.members = members;
+      input.members = members;
+    };
 }

hosts/common/configs/networkmanager/default.nix

@@ -0,0 +1,3 @@
+{
+  networking.networkmanager.enable = true;
+}