For anyone who does prefer a CLI-based approach, I maintain RustNet https://github.com/domcyrus/rustnet which is open source and cross-platform (Linux, macOS, Windows) with real-time connection monitoring, deep packet inspection, process identification, and a terminal UI. Obviously a different kind of tool than a polished GUI app like this, but if you live in the terminal or want something you can script and automate, it might be worth a look.
On the macOS network tools side, have you looked into PKTAP? I use it in RustNet to get process-level attribution for network connections. Might be worth exploring if you want to tie traffic back to specific processes.
Cool to see more network tools for macOS.
For anyone who does prefer a CLI-based approach, I maintain RustNet https://github.com/domcyrus/rustnet which is open source and cross-platform (Linux, macOS, Windows) with real-time connection monitoring, deep packet inspection, process identification, and a terminal UI. Obviously a different kind of tool than a polished GUI app like this, but if you live in the terminal or want something you can script and automate, it might be worth a look.
On the macOS network tools side, have you looked into PKTAP? I use it in RustNet to get process-level attribution for network connections. Might be worth exploring if you want to tie traffic back to specific processes.