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Re:Show HN: A webcam made out of HTML checkboxes by bryanbraun on Monday September 13, 2021 @10:38AM (#28512073)
I wrote up some notes about it here: https://github.com/bryanbraun/checkboxland/tree/master/src#p...

In short: only updating when needed, minimizing the number of DOM queries, and avoiding costly CSS layouts.

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