Writing log71 posts289 tagslatest Oct 7, 2026
Puppeteer.
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HyperFrames Architecture: How Do You Capture a Live Web Page One Exact Frame at a Time?
HyperFrames is HeyGen’s open-source framework for rendering HTML pages to MP4. It never plays the page. For every frame, it moves the page’s clock and every animation to that instant, then captures. I followed the code, rendered videos myself, and measured how speed scales with workers and whether the output is really identical.