modularized all the things

part one (?)

modules/common/users.nix

@@ -5,16 +5,8 @@
   hostname,
   ...
 } @ args: {
-  # Set up networking configuration
   networking.hostName = hostname;
-  # networking.computerName = hostname;
-  # networking.firewall.enable = true; # VERY important, do not touch
-  # networking.firewall.allowedTCPPorts = [];
-  # networking.firewall.allowedUDPPorts = [];
-  # networking.networkmanager.enable = pkgs.stdenv.isLinux; # Linux tool for managing network connections
-  # system.defaults.smb.NetBIOSName = hostname;
 
-  # Set up user accounts
   # Don't forget to set a password with ‘passwd’!
   users.users."${userName}" = lib.mkMerge [
     {