Surface
Put it on any page
Drop this into any website, where the book should sit. It fills the width of whatever section it's in.
<link rel="stylesheet" href="https://spread.irina.love/spread.css">
<div class="spread" data-book="https://spread.irina.love/book.json"></div>
<script src="https://spread.irina.love/vendor/page-flip.browser.js"></script>
<script src="https://spread.irina.love/spread.js"></script>
New images: put originals in source-images/, run python3 tools/optimize.py, then add them to book.json by name.