{#- Shared navigation. `current` marks the active page. -#}
<nav class="sitenav">
  <a href="/"        class="{{ 'here' if current == 'triage' }}">Triage</a>
  <a href="/digest"  class="{{ 'here' if current == 'digest' }}">Digest</a>
  <a href="/tune"    class="{{ 'here' if current == 'tune' }}">Tune</a>
  <a href="/config"  class="{{ 'here' if current == 'config' }}">Config</a>
</nav>