{{/* list of {title, subtitle, text, image} */}}
<div class="gallery">
  {{ range $item := . }}
  <figure>
    {{ with .image }}<a href="{{ . }}"><img src="{{ . }}" alt="{{ $item.title }}" loading="lazy"></a>{{ end }}
    <figcaption>
      {{ with .title }}<strong>{{ . }}</strong>{{ end }}
      {{ with .subtitle }}<em>{{ . }}</em>{{ end }}
      {{ with .text }}<div>{{ . | markdownify }}</div>{{ end }}
    </figcaption>
  </figure>
  {{ end }}
</div>