The Solo Founder's $0 Monitoring Stack (Everything I Use Is Boring and Free)

Description and use

Zero‑cost monitoring stack for solo founders: process supervision, health checks, dead‑man’s switch, self‑healing, and daily digest.

Problem

One-person operations often incur high observability costs or rely on complex tools, leading to unnecessary expenses and maintenance overhead.

Outcome

Implemented a zero‑cost monitoring stack that caught all revenue‑affecting failures over several months, with 90% of incidents resolved automatically on the first attempt and a 90% reduction in interruption load from daily digests.

Workflow

• 1. Use launchd (macOS) or systemd (Linux) to supervise critical processes, ensuring automatic restarts and journald logging.
• 2. Run a lightweight Python script that pings each critical URL every 5 minutes, appending status and latency to a JSONL file and alerting only on state changes.
• 3. Configure a free uptime service to receive a heartbeat POST every minute; if 3 heartbeats are missed, the service emails the owner.
• 4. On failure, execute a self-healing loop: restart the process, clear cache, re-authenticate, with a maximum of 3 attempts logged; only then ping the owner.
• 5. Send a single daily digest email summarizing checks, failures, auto-heals, and human-required actions, keeping live alerts for critical incidents only.

Evidence

This is the layer people skip, and it's the one that catches the day your whole box silently dies.

Source

Roughly 90% of incidents die at attempt 1 and never reach me.

Source