feat: add Keyoxide link

src/pages/index.astro

@@ -2,6 +2,7 @@
 import { Image } from "astro:assets";
 import ExternalLink from "../components/external-link.astro";
 import InlineSvg from "../components/inline-svg.astro";
+import KeyoxideLogo from "../images/keyoxide.svg";
 import MatrixLogo from "../images/matrix-logo.svg";
 import portrait from "../images/portrait.jpg";
 import "../styles/global.css";
@@ -46,6 +47,16 @@ import "../styles/global.css";
                 <span>@kmoschcau:matrix.org</span>
               </ExternalLink>
             </li>
+            <li>
+              <ExternalLink
+                cssClass="link-keyoxide"
+                href="https://keyoxide.org/8CE00E9495B5030DA9217208DF16F424177090BB"
+                title="Mein Keyoxide-Eintrag"
+              >
+                <InlineSvg SvgComponent={KeyoxideLogo} slot="logo" />
+                <span>Keyoxide</span>
+              </ExternalLink>
+            </li>
           </ul>
         </nav>
       </article>