Move common configuration to a separate file, add user for som

users.nix

@@ -0,0 +1,17 @@
+{ config, pkgs, ... }:
+
+{
+  users.users = {
+     functionalhacker = {
+       isNormalUser = true;
+       description = "Marko";
+       extraGroups = [ "networkmanager" "wheel" ];
+     };
+
+     som = {
+       isNormalUser = true;
+       description = "Som";
+       extraGroups = [ "networkmanager" ];
+     };
+  };
+}