omplex states without reducing readability</li>
          </ul>
          <aside class="notes">
            <li>`changed` for example is a test</li>
            <li>Develop these when checks get too complex</li>
            <li>But be sure that the check really need to be that complex</li>
          </aside>
        </section>

        <section>
          <h2>JINJA IS JUST TOO SHALLOW: FILTER!</h2>

          <ul>
            <li>You want to extend the jinja filter set? Go for it.</li>
            <li>But a