On-demand JavaScript runtime + Preact

The initial HTML for this page was rendered at build time - so it works without JavaScript + (really, try it)

But, when a page like this contains a Component marked as JS-ENABLED, the 2kb runtime loads, and then loads any micro-bundles required for the component (in this example, that's Preact/compat)

Thanks to Module Federation, if multiple components on the same page share dependencies (eg: Preact) they will 'share' them intelligently

The timer below was server-side rendered

Once the page is ready, a tiny bundle loads and hydrates the markup

setInterval is not good for timers like this: 0

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