hogswatch needs nethogs 0.8.2+. I'll try to build it from source.

Edit: built from source but stuck with other people in the installation of hogswatch https://github.com/akshayKMR/hogwatch/issues/3

I haven't tried hogswatch; judging by the screenshots, it doesn't bring anything more, information-wise, than what's already present in nethogs' terminal UI.

But 0.8.1 fixes the problem described on the askubuntu page the grand-grandparent linked to.