diff --git a/nix/forge-theme/logo.svg b/nix/forge-theme/logo.svg
new file mode 100644
index 0000000..37f055e
--- /dev/null
+++ b/nix/forge-theme/logo.svg
@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32" width="32" height="32">
+  <!-- hexagon backdrop — Catppuccin Mocha base -->
+  <polygon points="16,1 28.7,8.5 28.7,23.5 16,31 3.3,23.5 3.3,8.5"
+           fill="#1e1e2e" stroke="#cba6f7" stroke-width="1.5"/>
+  <!-- lightning bolt — mauve fill, cyan accent on upper half -->
+  <polygon points="19,5 11,17 16,17 10,27 21,15 16,15"
+           fill="#cba6f7"/>
+  <polygon points="19,5 11,17 16,17 21,5"
+           fill="#89dceb"/>
+</svg>
diff --git a/nix/modules/hive-forge.nix b/nix/modules/hive-forge.nix
index 67e29c0..2a620ac 100644
--- a/nix/modules/hive-forge.nix
+++ b/nix/modules/hive-forge.nix
@@ -119,6 +119,11 @@ in
             mkdir -p $out/public/assets/css
             cp ${../forge-theme/theme-catppuccin-vibec0re.css} \
                $out/public/assets/css/theme-catppuccin-vibec0re.css
+            # Replace the default Forgejo logo + favicon with the hyperhive
+            # mark. Files in public/assets/img/ are served before built-ins.
+            mkdir -p $out/public/assets/img
+            cp ${../forge-theme/logo.svg} $out/public/assets/img/logo.svg
+            cp ${../forge-theme/logo.svg} $out/public/assets/img/favicon.svg
           '';
         in
         {