🖥️ Home Server Monitor

Real-time server status tracking

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\n\n`;\n\n return c.html(html);\n});\n\n// Heartbeat endpoint - your server calls this\napp.post(\"/heartbeat\", async (c) => {\n const secretKey = Deno.env.get(\"SECRET_KEY\");\n const providedKey = c.req.header(\"x-secret-key\");\n\n if (!secretKey || providedKey !== secretKey) {\n return c.json({ error: \"Unauthorized\" }, 401);\n }\n\n const now = Date.now();\n const oneDayAgo = now - 24 * 60 * 60 * 1000;\n\n await sqlite.batch([\n { sql: \"INSERT INTO heartbeats (timestamp) VALUES (?)\", args: [now] },\n { sql: \"DELETE FROM heartbeats WHERE timestamp < ?\", args: [oneDayAgo] },\n ]);\n\n return c.json({ success: true, timestamp: Date.now() });\n});\n\n// 404 handler\napp.notFound((c) => c.text(\"Not Found\", 404));\n\n// Error handler\napp.onError((err, c) => {\n console.error(\"Error:\", err);\n return c.json({ error: err.message }, 500);\n});\n\nexport default app.fetch;\n","halffullheartbeat",[69],"af29f54a-0f67-11f1-ae15-42dde27851f2","README.md","af29f61c-0f67-11f1-ae15-42dde27851f2",51,["D",1771707341995],"# 🖥️ Home Server Monitor\n\nMonitors a home server and sends a Pushcut notification if it goes offline.\n\n## How it works\n\n1. The home server pings `POST /heartbeat` every 15 minutes with a secret key\n2. `monitor.ts` runs every 15 minutes and checks if a heartbeat has been received in the last hour\n3. If not, a Pushcut notification is sent via `NOTIFY_SERVER_DOWN_URL`\n4. The status page at `/` renders the current state server-side — no client-side JS\n\n## Setup\n\n### Environment variables\n\n| Variable | Description |\n|---|---|\n| `SECRET_KEY` | Required on all heartbeat requests via `x-secret-key` header |\n| `NOTIFY_SERVER_DOWN_URL` | Pushcut webhook URL to call when the server is down |\n\n### Heartbeat cron job\n\nAdd this to your home server's crontab:\n\n```bash\n*/15 * * * * curl -X POST https://halffullheartbeat.val.run/heartbeat -H \"x-secret-key: YOUR_SECRET_KEY\"\n```\n\n## Files\n\n- `main.ts` — Hono HTTP server; serves the status page and accepts heartbeats\n- `monitor.ts` — Interval val that checks for downtime and triggers 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