index.md

---
layout: default
title: Systems and Libraries
permalink: /systems/
---

{% assign systems = site.pages | where: "layout", "system" | sort: "start_date" %}

<ul class="collection">
    {% for item in systems %}
        {% unless item.end_date %}
            {% include psitem.html item=item %}
        {% endunless %}
    {% endfor %}
</ul>