Do you have any recommendations for a self hosted network analyzer that can visualize all the device connected to a network, different subnets, etc, and perhaps show the flow of data for each network device?
I’m probably asking for too much but sometimes there are cool projects out there that aren’t easy to find.
Can’t you just use Kali for that?
Depending on how you intend to use Kali, that’s either a bad idea or a terrible idea. Don’t use Kali bo for long running processes.
Just get a router with that feature or flash a firmware with that feature.