diff --git a/ext.svg b/ext.svg
new file mode 100644
index 0000000..6e1a739
--- /dev/null
+++ b/ext.svg
@@ -0,0 +1 @@
+<svg width="24" height="24" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M17 13.5v6H5v-12h6m3-3h6v6m0-6-9 9" class="icon_svg-stroke" stroke="#666" stroke-width="1.5" fill="none" fill-rule="evenodd" stroke-linecap="round" stroke-linejoin="round"></path></svg>
diff --git a/src/main/scala/Components.scala b/src/main/scala/Components.scala
index 1abf347..cea2ae1 100644
--- a/src/main/scala/Components.scala
+++ b/src/main/scala/Components.scala
@@ -232,12 +232,12 @@ object Components {
   ): Resource[IO, HtmlDivElement[IO]] =
     div(
       span(cls := "font-bold", key + " "),
-      span(
-        Styles.mono,
-        a(
-          href := "nostr:" + code,
-          code
-        )
+      span(Styles.mono, cls := "break-all", code),
+      a(
+        href := "nostr:" + code,
+        external
       )
     )
+
+  private val external = img(cls := "inline w-4 ml-2", src := "ext.svg")
 }
diff --git a/src/main/scala/Main.scala b/src/main/scala/Main.scala
index 84953c8..c62a932 100644
--- a/src/main/scala/Main.scala
+++ b/src/main/scala/Main.scala
@@ -27,7 +27,10 @@ object Main extends IOWebApp {
               cls := "inline-block w-8 mr-2",
               src := "/favicon.ico"
             ),
-            "nostr army knife"
+            a(
+              href := "https://github.com/fiatjaf/nostr-army-knife",
+              "nostr army knife"
+            )
           ),
           div(
             cls := "flex my-3",