fediparty/themes/starter/layout/_partial/featured.ejs

<%
  const date = post.date.format(config.date_format).split('-').join('.');

  let avatarPath ="";

  if (page.avatar) {
    avatarPath = page.avatar;
  } else {
    avatarPath = "default-avatar.png";
  }
%>

<section class="">
  <div class="section-title">
    <h4><%- __('featured') %></h4>
  </div>
  <a href="<%- post.url %>" class="post__preview featured">
    <img src="/<%- post.path %><%- post.banner%>" alt="featured post image">
    <img class="post__avatar" src="/img/authors/<%= avatarPath %>" alt="author">
    <div class="post__content">
      <p class="post__title u-emphasize u-center">
        <%- post.title %>
      </p>
      <p class="post__text"><%- post.preview %></p>
      <p class="post__meta u-emphasize">
        <%= date %>
        <span>by <% post.authors.map(function(author) { %><%= author %> <% }) %></span>
      </p>
    </div>
  </a>
</section>