polkit: properly enable it and enable gnome-keyring

nixos.nix

@@ -21,6 +21,8 @@ in
   imports = [
     # Include the results of the hardware scan.
     ./hardware-configuration.nix
+    # Include service configuration
+    ./services/authentication.nix
   ];
 
   # Enable experimental features

programs/gamemode.ini

@@ -10,7 +10,7 @@ desiredgov=performance
 ; GameMode can change the scheduler policy to SCHED_ISO on kernels which support it (currently
 ; not supported by upstream kernels). Can be set to "auto", "on" or "off". "auto" will enable
 ; with 4 or more CPU cores. "on" will always enable. Defaults to "off".
-softrealtime=auto
+softrealtime=off
 
 ; GameMode can renice game processes. You can put any value between 0 and 20 here, the value
 ; will be negated and applied as a nice value (0 means no change). Defaults to 0.