// writing
Posts tagged #performance — Page 2
A mix of technical deep-dives, career reflections, and dispatches from the road.
tag: #performance
developmentSep 20, 2026· 4 min
Turbopack's Persistent Build Cache Only Helps If Your CI Keeps It
Next.js 16.3 turned on Turbopack's persistent build cache with claimed speedups up to 5.5x. Most CI pipelines see none of it, because containers start empty.
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developmentSep 14, 2026· 3 min
WebNN: The Only Web API That Can Reach Your NPU
Almost every laptop shipped in the last two years has a neural processing unit sitting idle. WebNN is the only web standard that can actually talk to it…
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developmentAug 30, 2026· 4 min
Async Svelte: Using await Directly in Your Components
Svelte 5.36 lets you use await at the top level of a component, inside $derived, and in your markup.
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developmentAug 27, 2026· 4 min
The Web Locks API: One Tab Does the Work, the Rest Wait
Your app already runs in five tabs at once, and they all think they are in charge. The Web Locks API gives the browser a real mutex so only one of them does…
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developmentAug 23, 2026· 4 min
Next.js Partial Prefetching: One Shell Per Route, Not One Per Link
Next.js 16.3 stops firing a prefetch request for every link in the viewport and caches one reusable loading shell per route instead.
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developmentAug 20, 2026· 4 min
Declarative Partial Updates: Out-of-Order HTML Streaming Without a Framework
Chrome 148 ships experimental support for filling HTML placeholders out of order and streaming markup into the DOM.
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developmentAug 17, 2026· 3 min
React's Activity Component: Hide UI Without Losing Its State
React 19.2's Activity component hides a subtree instead of unmounting it, so state, scroll position, and DOM survive the round trip.
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developmentAug 16, 2026· 3 min
revalidateTag vs updateTag: Next.js Split Cache Invalidation in Two
Next.js 16 gave cache invalidation two different functions instead of one, and the split maps to a real distinction: content that can lag versus content the…
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developmentAug 9, 2026· 3 min
The Long Animation Frames API: Find What Actually Broke Your INP
Your field data says INP is 400ms. Your local profile says everything is fine. The Long Animation Frames API closes that gap by naming the script, the…
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