Ugly and basic network monitoring tool in python with hardcoded windows desktop path and interface in polish
I suggest deployment for Polish speaking user on windows using:
$ pyinstaller --onefile --windowed online.py
Then you just leave the exe running for as long as you want to monitor the network, admin rights required. You may want to extend hardcoded hosts list.
This is not safe, robust nor refined tool, no guarantees that it will not create a backdoor to your PC or burn your house.