The runtime

Small on purpose: gestures, md, palette, Giscus. Everything else is yours.

The sveltekitbook npm package holds only the parts that are truly shared and stable. createPager turns wheel + touch + arrow keys into next/previous navigation. md(text, opts) parses inline **bold**, *em*, and [[term]]. makeSpectrum builds the −N..+N color ramp. Giscus.svelte mounts GitHub Discussions comments per page. Everything else — the cover, the page layout, the rooms — gets scaffolded into your project as editable files.