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Last week I took part in MLH's Global Hack Week as part of Hacktoberfest 2026. I had one week, a healing ankle, and a goal of finishing my Hacktoberfest sticker book. I came out of it with a handful of small…
Short answer: use a queue as the delivery layer for user reminders, make the consumer idempotent, and move repeatedly failing jobs to a dead-letter queue for inspection and redrive. For a media platform, the web request should record the reminder…
Short answer: use a queue with a dead-letter queue (DLQ), acknowledge only after the shipment side effect succeeds, and make the consumer idempotent. This is the practical shape for retrying failed jobs when delivery is at-least-once. I once treated a…
Then one morning you open the Horizon dashboard and see a wall of ModelNotFoundException entries in your failed jobs table — for records that, as far as anyone can tell, definitely exist. Multiply this by a payment refund happening seconds after…
Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Submission 🌿 In the North Georgia mountains and the Smokies, your phone becomes a brick. You park at the trailhead with full bars, and ten minutes up the trail they're gone. That's exactly when…
Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Submission 🌿 Sit Spot is an open-source, screen-minimal outdoor listening companion built on a simple premise: "Listen first. Then check." Most nature apps do the opposite of getting you outdoors: they encourage you to…
Keelsheet is a quarterly estimated tax kit for freelancers and 1099 earners (calculator + Schedule C ledger, Excel/Google Sheets). It's live on our own site with Stripe, plus Etsy and Gumroad. If you sold a low-ticket template from zero: what got…
The ledger comes first. Use a simple accounting identity before tuning anything: The polling worker should implement a state transition, not a vague alert rule. Give each policy a version, evaluate one closed time window, and derive a stable decision…
Neither advantage changes the dedupe rule. A reconnect creates two readers of one logical timeline. One reader asks storage for recent history while the other resumes live fan-out. Any boundary chosen by client time, request time, or subscription time has…
Amadeus gives you flights, hotels and fares over a clean REST API — but a B2B portal is more than a search box. You also have sub-agents, markup, wallets and credentials to manage. Here's the flow that works, and the B2B pieces the…