fix group and command

modules/nixos/core/system.nix

@@ -34,7 +34,8 @@
         "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
       ];
       trusted-users = [ "root" ];
-
+      build-users-group = "nixbld";
+      
       # Enable local binary cache
       keep-outputs = true;
       keep-derivations = true;

modules/nixos/user.nix

@@ -16,12 +16,15 @@
         "wheel"
         "networkmanager"
         "audio"
+        "nixbld"
       ];
       openssh.authorizedKeys.keys = [
       ];
     };
   };
 
+  binPath = "${pkgs.nix}/bin";
+
   # DO NOT promote the specified user to input password for `nix-store` and `nix-copy-closure`
   security.sudo = {
     # wheelNeedsPassword = false;
@@ -31,7 +34,7 @@
         commands =
           [
             {
-              command = "/run/current-system/sw/bin/nix-store";
+              command = "${binPath}/nix-store";
               options = [ "NOPASSWD" ];
             }
             {
@@ -39,15 +42,11 @@
               options = [ "NOPASSWD" "SETENV" ];
             }
             {
-              command = "${pkgs.systemd}/bin/systemctl suspend";
+              command = "${binPath}/reboot";
               options = [ "NOPASSWD" ];
             }
             {
-              command = "${pkgs.systemd}/bin/reboot";
-              options = [ "NOPASSWD" ];
-            }
-            {
-              command = "${pkgs.systemd}/bin/poweroff";
+              command = "${binPath}/bin/poweroff";
               options = [ "NOPASSWD" ];
             }
           ];