Streaky – GitHub Streak Monitor with Distributed Cron Processing

Hacker News

Hi HN! I built Streaky to solve a personal problem - I kept losing my GitHub streak on busy days. It monitors your contribution streak and sends notifications to Discord/Telegram before it breaks. What makes it interesting technically: 1. Distributed Cron Processing : Used Cloudflare Service Bindings to bypass the 30-second CPU limit. Each user gets processed in an isolated Worker instance with its own CPU budget. 2. Idempotent Queue System : D1-based queue with atomic operations prevents duplicate processing when cron jobs overlap or retry. 3. Zero-Knowledge Security : GitHub tokens never stored (OAuth refresh flow), webhooks encrypted with AES-256-GCM, notifications sent via isolated Rust proxy. 4. Rate Limit Solution : Cloudflare Workers use shared IP pools which trigger rate limits from Discord/Telegram. Solved by routing notifications through a dedicated Rust server on Koyeb. Tech Stack: - Frontend: Next.js 15, React 19, TypeScript - Backend: Cloudflare Workers + D1 (SQLite) - Infrastructure: Rust notification proxy - Auth: GitHub OAuth via NextAuth.js v5 Live demo : https://streakyy.vercel.app The project is fully open-source under MIT license. Happy to answer any questions about the architecture or implementation

Visit product View on Hacker NewsOct 22, 2025

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