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             <section id="matrix.grapheneos.org">
                 <h2><a href="#matrix.grapheneos.org">GrapheneOS Matrix server</a></h2>
 
+                <p>This server primarily runs the synapse Matrix server with PostgreSQL behind an
+                nginx web server. It also runs the mjolnir bot for moderation and matterbridge is
+                used to implement a bridge between Matrix, IRC and Telegram.</p>
+
                 <ul>
                     <li><a href="https://github.com/GrapheneOS/matrix.grapheneos.org">Repository</a></li>
                     <li><a href="https://github.com/GrapheneOS/matrix.grapheneos.org/issues">Issue tracker</a></li>