Looks snazzy. Like htop could this potentially read ~/.config/nethtop/nethtop.rc or something like that to look for preferences such as user-defined targeted tcpdump additional flags -p --dont-verify-checksums -NNnnttv -B131072 -c1000 and user-defined pcap logging directory like /dev/shm to avoid artificially dropping packets due to slow storage?

This is definitely going in the roadmap. Or if you want you can make a PR request and I will integrate the update. Thanks for the poweruser comment. Really appreciated!