add lsusb and a not working wifi config

modules/minetest-server.nix

@@ -0,0 +1,12 @@
+{ config, pkgs, ... }:
+
+{
+  # install
+  environment.systemPackages = [ pkgs.minetestserver ];
+ 
+  # config
+  services.minetest-server = {
+   enable = true;
+   port = 30000;
+ };
+}