A stand-in for a page on kevin.marcelo.ph, with the site's colour variables. The timer in the corner is one script tag:
<script src="kamatis.js" data-side="left" async></script>
Press play to start a focus block. Expand it for a bigger tomato you can spin, and the phase buttons. The state is in localStorage, so a reload keeps the clock going. The full page has the settings.