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JS runtimes, frameworks, and edge/serverless adapters.
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A request limit cannot cap your LLM bill. Reserve tokens in Redis
6+ min ago (967+ words) One request can be a one-line question. Another starts an agent run that makes a dozen model calls, each resending a longer context than the last. A request limit counts both as one. The obvious fix is to count tokens…...
The Race Condition Vanished the Instant I Added a console.log
5+ min ago (213+ words) console.log isn't free. It's a synchronous I/O operation in Node, and depending on the runtime and where stdout is being piped, it can take anywhere from microseconds to low milliseconds — small, but not zero, and crucially, not zero…...
Pin Duplicate-Delivery Receipts Before You Extract a Webhook Alias
19+ min ago (463+ words) Production logs for this kind of module often show three rules that no README states in a checkable form. A repeated event id must return the first outcome and must skip a second ledger write. Signature header names can arrive…...
We deleted the hosted job runner, and the two schedules we have left are an hourly ping and a monthly invoice
22+ min ago (797+ words) Munchable has a data pipeline behind it. Scan a barcode, and the app needs every word on that ingredients list to resolve to something its rule sets can reason about. Words arrive faster than any fixed vocabulary covers them, so…...
Frontend Engineer (5 YOE) Interview Experience – Round 1 + Round 2
47+ min ago (140+ words) Recently went through a Frontend Engineer interview process (5 years experience) and wanted to share both rounds along with key … Recently went through a Frontend Engineer interview process (5 years experience) and wanted to share both rounds along with key insights 👇 1. What…...
Development environment in the TypeScript 7 era: A lightning-fast TS template packed with native binaries
2+ day, 7+ hour ago (1068+ words) TypeScript 7 has arrived, the compiler has been completely redesigned in Go, and tsc has evolved into a native binary. When I rebuilt the development environment from scratch at this milestone, it was reborn as an overwhelmingly fast environment where almost…...
No-App Photo Sharing with QR Codes & Browser Cameras
43+ min ago (1078+ words) Participants scan a QR code This is building-in-public, so I’ll also cover what I got wrong, what I kept, and what you can implement today with web platform basics. QR codes to connect a user to a specific event/session…...
Propagating Deadlines from VIN Form Submit to NHTSA Proxy Without Orphaned Work
40+ min ago (291+ words) The goal is narrow: one submit, one deadline, one cancellable fetch chain. Do not confuse this with hedged dual-fire, idempotency keys, or jittered retries. Here the job is: when the UI no longer wants the result, stop waiting on the…...
Browser Camera APIs: Replacing a Native App
43+ min ago (1343+ words) Quick Answer: I swapped a native camera workflow for a web version built on navigator.mediaDevices.getUserMedia and a thin WebRTC layer for streaming/recording. It worked because the real requirements were permission UX, latency, and reliability—not “native UI....
Seventeen subqueries in one statement, because our connection pool has five slots
40+ min ago (493+ words) Nakodo has an operator panel at /admin: accounts, plans, campaigns, the inbound mail that failed to forward, the job queue, and a run log of the background pipeline. Its front page is a wall of numbers, and the first version…...