Building SilentGuard — a lightweight Linux network monitor (TUI + GUI)

I built SilentGuard because I wanted a simple way to see what applications are actually doing on my Linux system. Most network tools are either too complex, too heavy, or not very user-friendly. So I decided to build something lightweight, clear, and interactive. What is SilentGuard? SilentGuard is a network monitoring tool for Linux with: A fast and lightweight TUI (terminal interface) An optional GUI Real-time connection tracking Trust classification (Known / Unknown / Local) Block / unblock system with persistent rules The goal is to keep it simple, efficient, and useful for everyday monitoring. Why I built it I wanted to answer simple questions like: What apps are connecting to the internet? Are there unknown or suspicious connections? Can I block something quickly without complex tools? SilentGuard focuses on clarity and control without overcomplicating things. Current state The project is still in early development, but it's evolving quickly. Recent improvements include: Persiste