System monitor

A live view of the machine, sampled every 2 seconds in the background (the last 5 minutes are kept for the sparklines).

Panel	What it shows	Source
CPU	total %, per-core bars, sparkline	/proc/stat (Linux), top (macOS), GetSystemTimes (Windows)
Memory	used / available / total, swap	/proc/meminfo, vm_stat + sysctl, GlobalMemoryStatusEx
Load average	1 / 5 / 15 min vs. core count	os.getloadavg() (not available on Windows)
Network	in / out bytes per second	/proc/net/dev (Linux)
Disks	free space for home, scan roots and /	shutil.disk_usage
Top processes	heaviest by CPU, with memory	ps / PowerShell Get-Process

A status badge (✓ healthy / ● busy / ▲ under pressure) sums things up. It turns busy above 60% CPU, 75% memory or load above the core count, and under pressure above 85% / 90% / 1.5× cores. Status colours always come with an icon and a word, never colour alone.

Processes whose working directory is inside a scanned project (or that StackRadar started) are tagged 📦 project and get a stop button. Everything else is read-only. The top bar shows a mini CPU / RAM / load meter on every tab. Click it to open System. Hover a sparkline for the exact value at that moment.