diff --git a/pikit-web/onboarding/index.html b/pikit-web/onboarding/index.html
index 4c76ecb..09998ae 100644
--- a/pikit-web/onboarding/index.html
+++ b/pikit-web/onboarding/index.html
@@ -54,22 +54,32 @@
         <h3>Install the Pi-Kit CA (recommended, one-time)</h3>
         <p>This removes future warnings for both Pi-Kit and DietPi dashboards.</p>
         <details>
-          <summary>Linux (Arch/Endeavour)</summary>
-          <code id="archCmd">curl -s http://pikit.local/assets/pikit-ca.crt -o /tmp/pikit-ca.crt && sudo install -m644 /tmp/pikit-ca.crt /etc/ca-certificates/trust-source/anchors/ && sudo trust extract-compat</code>
-          <button class="copy" data-target="archCmd">Copy</button>
-        </details>
-        <details>
-          <summary>Linux (Debian/Ubuntu)</summary>
-          <code id="debCmd">curl -s http://pikit.local/assets/pikit-ca.crt -o /tmp/pikit-ca.crt && sudo cp /tmp/pikit-ca.crt /usr/local/share/ca-certificates/pikit-ca.crt && sudo update-ca-certificates</code>
-          <button class="copy" data-target="debCmd">Copy</button>
+          <summary>Windows</summary>
+          <p>Run <strong>mmc</strong> → Add/Remove Snap-in → Certificates (Computer) → Trusted Root CAs → Import <em>pikit-ca.crt</em>.</p>
         </details>
         <details>
           <summary>macOS</summary>
           <p>Double-click <em>pikit-ca.crt</em> → Always Trust.</p>
         </details>
         <details>
-          <summary>Windows</summary>
-          <p>Run <strong>mmc</strong> → Add/Remove Snap-in → Certificates (Computer) → Trusted Root CAs → Import <em>pikit-ca.crt</em>.</p>
+          <summary>Linux (Arch / Manjaro / Garuda, etc.)</summary>
+          <code id="archCmd">curl -s http://pikit.local/assets/pikit-ca.crt -o /tmp/pikit-ca.crt && sudo install -m644 /tmp/pikit-ca.crt /etc/ca-certificates/trust-source/anchors/ && sudo trust extract-compat</code>
+          <button class="copy" data-target="archCmd">Copy</button>
+        </details>
+        <details>
+          <summary>Linux (Debian / Ubuntu)</summary>
+          <code id="debCmd">curl -s http://pikit.local/assets/pikit-ca.crt -o /tmp/pikit-ca.crt && sudo cp /tmp/pikit-ca.crt /usr/local/share/ca-certificates/pikit-ca.crt && sudo update-ca-certificates</code>
+          <button class="copy" data-target="debCmd">Copy</button>
+        </details>
+        <details>
+          <summary>Linux (Fedora)</summary>
+          <code id="fedoraCmd">curl -s http://pikit.local/assets/pikit-ca.crt -o /tmp/pikit-ca.crt && sudo cp /tmp/pikit-ca.crt /etc/pki/ca-trust/source/anchors/pikit-ca.crt && sudo update-ca-trust</code>
+          <button class="copy" data-target="fedoraCmd">Copy</button>
+        </details>
+        <details>
+          <summary>BSD (FreeBSD / OpenBSD)</summary>
+          <code id="bsdCmd">fetch -o /tmp/pikit-ca.crt http://pikit.local/assets/pikit-ca.crt && sudo install -m644 /tmp/pikit-ca.crt /usr/local/share/certs/pikit-ca.crt && sudo certctl rehash</code>
+          <button class="copy" data-target="bsdCmd">Copy</button>
         </details>
       </section>
 
@@ -122,6 +132,17 @@
           });
         });
 
+        // Accordion: keep only one platform section open at a time
+        const detailBlocks = Array.from(document.querySelectorAll("details"));
+        detailBlocks.forEach((d) => {
+          d.addEventListener("toggle", () => {
+            if (!d.open) return;
+            detailBlocks.forEach((other) => {
+              if (other !== d) other.removeAttribute("open");
+            });
+          });
+        });
+
         probe();
       })();
     </script>