{# Override furo's sidebar brand: keep the original (logo, links home), then add
   a GitHub Sponsors button just below it. Using "!sidebar/brand.html" includes
   the theme's own template, so we don't re-list furo's sidebar components and
   stay decoupled from furo's internal layout. #}
{% include "!sidebar/brand.html" %}
<div class="sidebar-sponsor">
  <iframe src="https://github.com/sponsors/hathach/button"
          title="Sponsor TinyUSB"
          height="32" width="114"
          loading="lazy"></iframe>
</div>
