Peace Harbor Studios

Uptime Monitoring

A wooden abacus with rows of multicolored counting beads

Zero KV Writes While Healthy — the Arithmetic of a Free-Forever Uptime Monitor

Cloudflare's free tier allows 1,000 KV writes a day; a monitor that writes state every minute spends 1,440 — over quota by breakfast. The write-only-the-news design that lets Foghorn idle at zero writes, why alert delivery belongs inside the state machine, and where the math honestly runs out.

July 2026 · ~6 min read

A digital clock glowing in a dark bedroom late at night

Uptime Monitoring

A Status Page Won't Wake You Up — Why We Built a Dead-Man Watchdog Instead

Our own server went down one night and the monitoring announced it, on schedule, to a channel nobody was watching. Why every serverless uptime tool wants to be a status page, why an alarm is a different animal — and the dead-man watchdog we built so a real outage sends a text, once.

June 2026 · ~6 min read