LagWatch

• Tech Stack: Go, JavaScript/HTML/CSS, Linux.
• Focus: Out-of-band lag triage, host observability, performance diagnostics
• GitHub URL: https://github.com/dirshaye/LagWatch

• Built a lightweight host observability service in Go using a concurrent collector/aggregator pipeline with goroutines and buffered channels.
• Captured CPU, memory, disk, and network telemetry with low runtime overhead for real-time lag diagnosis.
• Exposed JSON snapshot APIs for quick out-of-band checks and a Prometheus-compatible endpoint for historical analysis.
• Integrated Prometheus and Grafana dashboards to convert raw metrics into actionable bottleneck and capacity signals.