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!
Comments URL: https://news.ycombinator.com/item?id=45663390
Points: 1
# Comments: 0
Source: github.com
