I kept hitting 429s on APIs I use daily. Every time, I'd search "Stripe rate limit" or "OpenAI rate limit" and land on a docs page that told me about one API, in one tier, with no error shape and no…
Abitbol also cited GLM-5.1 at about $0.30 per million input or output tokens. Revolut AI operations lead David Abitbol said tuning raised inference speed by 88% on the same hardware, as the fintech uses its self-hosted model as the default coding model…
The list was not slow because the phones were weak. It was slow because every row asked the phone to do heavy work for a 120 pixel box, and to do it again on every scroll. The wrong fix is to…
A few weeks ago, I was refactoring an internal dashboard in VS Code when my keystrokes began lagging by what felt like an eternity. I would hit const payload =, lift my hands, and watch the characters crawl onto the editor…
The Redis exporter presents Redis metrics to Prometheus. Port 9121 is a common default. A port match can be an exporter, a development service, or an unrelated listener. The exporter's value comes from a configured connection to Redis, which may carry…
When building digital infrastructure for mega-events—especially those scaling to 10,000+ attendees in Riyadh and Jeddah under Saudi Vision 2030—the most significant engineering bottleneck isn't hardware; it's data silos. Organizers frequently use one SaaS tool for registration, a separate vendor for…
I've been writing a PPTX exporter, and I wanted the font to travel with the file. When the person opening it doesn't have the font installed, the text falls back to some default and the line breaks drift. PPTX can…
An agent takes twelve minutes to finish a task. The tool report shows twenty minutes of activity. One test command took three minutes, although the same command normally finishes in seconds. Before changing the model or the test runner, check…
You open the profiler, record a session, and the flame chart looks great. 60 frames a second, steady, no dropped frames. You ship it. Then someone clicks a button while the animation is running, and for half a second, nothing happens.
Here's a pattern you'll find in a lot of Next.js apps, in app/admin/page.tsx: Logged-out users get redirected and never see the button. It looks safe. It isn't. The redirect only decides what the page renders. A…
Language ecosystems, compilers, runtimes, package managers, performance, and best practices.
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