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Your chart library doesn't need a dark mode

Your chart library doesn't need a dark mode

A Recharts chart can follow your page's dark mode with no theme state and no re-render: it names CSS variables, and the page declares them. This article shows t…

Englishdev.to React
Your Second Run Is a Lie

Your Second Run Is a Lie

My second run looked 1.8x faster. Nothing got faster. My cache got warm. That is the whole finding. Two identical prompts, back to back, and the only variable w…

Englishdev.to Python
The Free Server Doesn't Leak. It Drifts.

The Free Server Doesn't Leak. It Drifts.

I stopped asking whether a free server crashes. Wrong question, and it cost me a demo. The things rarely crash. They drift — a few kilobytes of resident memory …

Englishdev.to Python
Your Demo Server Should Never Hold the Model Key

Your Demo Server Should Never Hold the Model Key

A public demo needs a model, but it does not need the credential that pays for it. When free model access and a free server option push the cost of shipping a d…

Englishdev.to Python
Calibrate the Task Set Before You Scale the Run

Calibrate the Task Set Before You Scale the Run

Most of the budget in an agent benchmark goes to tasks that cannot separate two systems, and the fix is a cheap calibration sweep that runs before the scored on…

Englishdev.to Python
Free Tokens Have a Break-Even Failure Rate

Free Tokens Have a Break-Even Failure Rate

Free Tokens Have a Break-Even Failure Rate Free capacity is cheaper right up until it isn't, and the crossover is arithmetic rather than taste. You can find it …

Englishdev.to DevOps