Show HN: Sigwire – a live TUI switchboard for every signal on your Linux box

Sigwire is a live terminal UI tool that monitors all signals sent between processes on a Linux system in real-time, displaying sender-to-target signal flows with details like signal type, handler execution time, and whether syscalls were interrupted. It uses kernel tracepoints and eBPF rather than ptrace, allowing it to observe all system signals simultaneously without requiring cooperation from the monitored processes. The tool provides a visual "switchboard" view of signal activity across the entire host with filtering and inspection capabilities.